CN113559782A - Antifreezing foaming agent and application method thereof - Google Patents
Antifreezing foaming agent and application method thereof Download PDFInfo
- Publication number
- CN113559782A CN113559782A CN202110780035.1A CN202110780035A CN113559782A CN 113559782 A CN113559782 A CN 113559782A CN 202110780035 A CN202110780035 A CN 202110780035A CN 113559782 A CN113559782 A CN 113559782A
- Authority
- CN
- China
- Prior art keywords
- foaming agent
- cesium
- potassium
- sodium
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000004088 foaming agent Substances 0.000 title claims abstract description 457
- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000007710 freezing Methods 0.000 claims abstract description 429
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 177
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 167
- 238000005187 foaming Methods 0.000 claims abstract description 106
- 239000002994 raw material Substances 0.000 claims abstract description 37
- 239000007789 gas Substances 0.000 claims description 184
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 171
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 171
- 229910052792 caesium Inorganic materials 0.000 claims description 171
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 claims description 171
- 229910052700 potassium Inorganic materials 0.000 claims description 171
- 239000011591 potassium Substances 0.000 claims description 171
- 229910052708 sodium Inorganic materials 0.000 claims description 171
- 239000011734 sodium Substances 0.000 claims description 171
- 239000000203 mixture Substances 0.000 claims description 139
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 128
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 120
- 150000003839 salts Chemical class 0.000 claims description 120
- 239000007864 aqueous solution Substances 0.000 claims description 108
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 75
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 63
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 claims description 60
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 60
- 239000004202 carbamide Substances 0.000 claims description 60
- JVTAAEKCZFNVCJ-UHFFFAOYSA-M Lactate Chemical compound CC(O)C([O-])=O JVTAAEKCZFNVCJ-UHFFFAOYSA-M 0.000 claims description 57
- 229940071120 dehydroacetate Drugs 0.000 claims description 57
- 229940001447 lactate Drugs 0.000 claims description 57
- FLJPGEWQYJVDPF-UHFFFAOYSA-L caesium sulfate Chemical compound [Cs+].[Cs+].[O-]S([O-])(=O)=O FLJPGEWQYJVDPF-UHFFFAOYSA-L 0.000 claims description 54
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 54
- 239000003795 chemical substances by application Substances 0.000 claims description 48
- 239000000126 substance Substances 0.000 claims description 45
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 44
- 229930006000 Sucrose Natural products 0.000 claims description 44
- 239000005720 sucrose Substances 0.000 claims description 44
- 230000002265 prevention Effects 0.000 claims description 41
- GUBGYTABKSRVRQ-XLOQQCSPSA-N Alpha-Lactose Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-XLOQQCSPSA-N 0.000 claims description 40
- 229930091371 Fructose Natural products 0.000 claims description 40
- 239000005715 Fructose Substances 0.000 claims description 40
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 claims description 40
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 claims description 40
- 239000008101 lactose Substances 0.000 claims description 40
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 34
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical class [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 claims description 33
- 150000003863 ammonium salts Chemical class 0.000 claims description 30
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical class OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 30
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims description 28
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 27
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 claims description 27
- 150000002823 nitrates Chemical class 0.000 claims description 27
- 150000002826 nitrites Chemical class 0.000 claims description 27
- GTQFPPIXGLYKCZ-UHFFFAOYSA-L zinc chlorate Chemical compound [Zn+2].[O-]Cl(=O)=O.[O-]Cl(=O)=O GTQFPPIXGLYKCZ-UHFFFAOYSA-L 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 26
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 18
- 239000004094 surface-active agent Substances 0.000 claims description 18
- 239000003129 oil well Substances 0.000 claims description 17
- 239000002280 amphoteric surfactant Substances 0.000 claims description 12
- 239000003945 anionic surfactant Substances 0.000 claims description 12
- 239000003876 biosurfactant Substances 0.000 claims description 12
- 239000003093 cationic surfactant Substances 0.000 claims description 12
- 239000002736 nonionic surfactant Substances 0.000 claims description 12
- 230000002528 anti-freeze Effects 0.000 claims description 11
- 239000003085 diluting agent Substances 0.000 claims description 11
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 10
- 239000001099 ammonium carbonate Substances 0.000 claims description 10
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 9
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 9
- 239000003345 natural gas Substances 0.000 claims description 9
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052701 rubidium Inorganic materials 0.000 claims description 6
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 claims description 6
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims description 6
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims description 5
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 claims description 5
- 239000004604 Blowing Agent Substances 0.000 claims description 5
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims description 5
- 235000012501 ammonium carbonate Nutrition 0.000 claims description 5
- SOIFLUNRINLCBN-UHFFFAOYSA-N ammonium thiocyanate Chemical compound [NH4+].[S-]C#N SOIFLUNRINLCBN-UHFFFAOYSA-N 0.000 claims description 5
- ZBIBSMMVRNDSNI-UHFFFAOYSA-N diazanium;selenate Chemical compound [NH4+].[NH4+].[O-][Se]([O-])(=O)=O ZBIBSMMVRNDSNI-UHFFFAOYSA-N 0.000 claims description 5
- 238000007865 diluting Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- YDOJWYFZCOLHSH-UHFFFAOYSA-M 2-hydroxypropanoate;rubidium(1+) Chemical compound [Rb+].CC(O)C([O-])=O YDOJWYFZCOLHSH-UHFFFAOYSA-M 0.000 claims description 3
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 claims description 3
- CYDQOEWLBCCFJZ-UHFFFAOYSA-N 4-(4-fluorophenyl)oxane-4-carboxylic acid Chemical compound C=1C=C(F)C=CC=1C1(C(=O)O)CCOCC1 CYDQOEWLBCCFJZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004251 Ammonium lactate Substances 0.000 claims description 3
- AAJPPOBHESTHCL-UHFFFAOYSA-L C(=O)[O-].C(=O)[O-].[Rb+].[Rb+] Chemical compound C(=O)[O-].C(=O)[O-].[Rb+].[Rb+] AAJPPOBHESTHCL-UHFFFAOYSA-L 0.000 claims description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 3
- 229910002651 NO3 Inorganic materials 0.000 claims description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 3
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims description 3
- AZFNGPAYDKGCRB-XCPIVNJJSA-M [(1s,2s)-2-amino-1,2-diphenylethyl]-(4-methylphenyl)sulfonylazanide;chlororuthenium(1+);1-methyl-4-propan-2-ylbenzene Chemical compound [Ru+]Cl.CC(C)C1=CC=C(C)C=C1.C1=CC(C)=CC=C1S(=O)(=O)[N-][C@@H](C=1C=CC=CC=1)[C@@H](N)C1=CC=CC=C1 AZFNGPAYDKGCRB-XCPIVNJJSA-M 0.000 claims description 3
- AKRQYVPJMSLBRE-UHFFFAOYSA-L [Cs+].[Cs+].[O-]C=O.[O-]C=O Chemical compound [Cs+].[Cs+].[O-]C=O.[O-]C=O AKRQYVPJMSLBRE-UHFFFAOYSA-L 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 229940059265 ammonium lactate Drugs 0.000 claims description 3
- 235000019286 ammonium lactate Nutrition 0.000 claims description 3
- RZOBLYBZQXQGFY-HSHFZTNMSA-N azanium;(2r)-2-hydroxypropanoate Chemical compound [NH4+].C[C@@H](O)C([O-])=O RZOBLYBZQXQGFY-HSHFZTNMSA-N 0.000 claims description 3
- MKJXYGKVIBWPFZ-UHFFFAOYSA-L calcium lactate Chemical compound [Ca+2].CC(O)C([O-])=O.CC(O)C([O-])=O MKJXYGKVIBWPFZ-UHFFFAOYSA-L 0.000 claims description 3
- 239000001527 calcium lactate Substances 0.000 claims description 3
- 235000011086 calcium lactate Nutrition 0.000 claims description 3
- 229960002401 calcium lactate Drugs 0.000 claims description 3
- JQAJIZQDRZHQLO-UHFFFAOYSA-M cesium;2-hydroxypropanoate Chemical compound [Cs+].CC(O)C([O-])=O JQAJIZQDRZHQLO-UHFFFAOYSA-M 0.000 claims description 3
- HOWVCOMHRAGNBD-UHFFFAOYSA-L dicesium diacetate Chemical compound C(C)(=O)[O-].C(C)(=O)[O-].[Cs+].[Cs+] HOWVCOMHRAGNBD-UHFFFAOYSA-L 0.000 claims description 3
- LFQRKUIOSYPVFY-UHFFFAOYSA-L dipotassium diacetate Chemical compound [K+].[K+].CC([O-])=O.CC([O-])=O LFQRKUIOSYPVFY-UHFFFAOYSA-L 0.000 claims description 3
- FGRVOLIFQGXPCT-UHFFFAOYSA-L dipotassium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane Chemical compound [K+].[K+].[O-]S([O-])(=O)=S FGRVOLIFQGXPCT-UHFFFAOYSA-L 0.000 claims description 3
- MRXCOLWWZJKPPA-UHFFFAOYSA-L disodium diformate Chemical compound [Na+].[Na+].[O-]C=O.[O-]C=O MRXCOLWWZJKPPA-UHFFFAOYSA-L 0.000 claims description 3
- OPGYRRGJRBEUFK-UHFFFAOYSA-L disodium;diacetate Chemical compound [Na+].[Na+].CC([O-])=O.CC([O-])=O OPGYRRGJRBEUFK-UHFFFAOYSA-L 0.000 claims description 3
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 claims description 3
- PHZLMBHDXVLRIX-UHFFFAOYSA-M potassium lactate Chemical compound [K+].CC(O)C([O-])=O PHZLMBHDXVLRIX-UHFFFAOYSA-M 0.000 claims description 3
- 239000001521 potassium lactate Substances 0.000 claims description 3
- 235000011085 potassium lactate Nutrition 0.000 claims description 3
- 229960001304 potassium lactate Drugs 0.000 claims description 3
- 239000004323 potassium nitrate Substances 0.000 claims description 3
- 235000010333 potassium nitrate Nutrition 0.000 claims description 3
- 239000004304 potassium nitrite Substances 0.000 claims description 3
- 235000010289 potassium nitrite Nutrition 0.000 claims description 3
- YAZJAPBTUDGMKO-UHFFFAOYSA-L potassium selenate Chemical compound [K+].[K+].[O-][Se]([O-])(=O)=O YAZJAPBTUDGMKO-UHFFFAOYSA-L 0.000 claims description 3
- ZNNZYHKDIALBAK-UHFFFAOYSA-M potassium thiocyanate Chemical compound [K+].[S-]C#N ZNNZYHKDIALBAK-UHFFFAOYSA-M 0.000 claims description 3
- 229940116357 potassium thiocyanate Drugs 0.000 claims description 3
- BINNZIDCJWQYOH-UHFFFAOYSA-M potassium;formic acid;formate Chemical compound [K+].OC=O.[O-]C=O BINNZIDCJWQYOH-UHFFFAOYSA-M 0.000 claims description 3
- AZLWTPZECWAZAQ-UHFFFAOYSA-L rubidium(1+) diacetate Chemical compound [Rb+].C(C)(=O)[O-].[Rb+].C(C)(=O)[O-] AZLWTPZECWAZAQ-UHFFFAOYSA-L 0.000 claims description 3
- 239000001632 sodium acetate Substances 0.000 claims description 3
- 235000017454 sodium diacetate Nutrition 0.000 claims description 3
- 239000001540 sodium lactate Substances 0.000 claims description 3
- 235000011088 sodium lactate Nutrition 0.000 claims description 3
- 229940005581 sodium lactate Drugs 0.000 claims description 3
- 235000010288 sodium nitrite Nutrition 0.000 claims description 3
- BAZAXWOYCMUHIX-UHFFFAOYSA-M sodium perchlorate Chemical compound [Na+].[O-]Cl(=O)(=O)=O BAZAXWOYCMUHIX-UHFFFAOYSA-M 0.000 claims description 3
- 229910001488 sodium perchlorate Inorganic materials 0.000 claims description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims 2
- 108010053481 Antifreeze Proteins Proteins 0.000 claims 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims 2
- 235000019270 ammonium chloride Nutrition 0.000 claims 1
- 235000015497 potassium bicarbonate Nutrition 0.000 claims 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 claims 1
- 239000011736 potassium bicarbonate Substances 0.000 claims 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims 1
- 235000017557 sodium bicarbonate Nutrition 0.000 claims 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims 1
- 239000004317 sodium nitrate Substances 0.000 claims 1
- 235000010344 sodium nitrate Nutrition 0.000 claims 1
- 230000008014 freezing Effects 0.000 abstract description 112
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract description 54
- 238000004519 manufacturing process Methods 0.000 abstract description 34
- 230000000694 effects Effects 0.000 abstract description 18
- 238000007711 solidification Methods 0.000 abstract description 7
- 230000008023 solidification Effects 0.000 abstract description 7
- 238000003860 storage Methods 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract 1
- COTNUBDHGSIOTA-UHFFFAOYSA-N meoh methanol Chemical compound OC.OC COTNUBDHGSIOTA-UHFFFAOYSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 description 64
- 235000011187 glycerol Nutrition 0.000 description 41
- 239000006260 foam Substances 0.000 description 38
- 239000000243 solution Substances 0.000 description 25
- 239000013543 active substance Substances 0.000 description 19
- 239000007787 solid Substances 0.000 description 19
- JBIROUFYLSSYDX-UHFFFAOYSA-M benzododecinium chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 JBIROUFYLSSYDX-UHFFFAOYSA-M 0.000 description 13
- WFIZEGIEIOHZCP-UHFFFAOYSA-M potassium formate Chemical compound [K+].[O-]C=O WFIZEGIEIOHZCP-UHFFFAOYSA-M 0.000 description 12
- 229940073499 decyl glucoside Drugs 0.000 description 9
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 description 9
- -1 polysaccharide lipid Chemical class 0.000 description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- 238000001514 detection method Methods 0.000 description 7
- 238000009533 lab test Methods 0.000 description 7
- 239000002244 precipitate Substances 0.000 description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 5
- 239000010865 sewage Substances 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229940079593 drug Drugs 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- AOMUHOFOVNGZAN-UHFFFAOYSA-N N,N-bis(2-hydroxyethyl)dodecanamide Chemical compound CCCCCCCCCCCC(=O)N(CCO)CCO AOMUHOFOVNGZAN-UHFFFAOYSA-N 0.000 description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 235000019606 astringent taste Nutrition 0.000 description 2
- VSQHTVCBHFZBOT-UHFFFAOYSA-M cesium;chlorate Chemical compound [Cs+].[O-]Cl(=O)=O VSQHTVCBHFZBOT-UHFFFAOYSA-M 0.000 description 2
- 238000010494 dissociation reaction Methods 0.000 description 2
- 230000005593 dissociations Effects 0.000 description 2
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- UQKJYPMYTWFTPI-UHFFFAOYSA-M potassium formic acid hydroxide Chemical compound [OH-].[K+].OC=O UQKJYPMYTWFTPI-UHFFFAOYSA-M 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- HVCOBJNICQPDBP-UHFFFAOYSA-N 3-[3-[3,5-dihydroxy-6-methyl-4-(3,4,5-trihydroxy-6-methyloxan-2-yl)oxyoxan-2-yl]oxydecanoyloxy]decanoic acid;hydrate Chemical compound O.OC1C(OC(CC(=O)OC(CCCCCCC)CC(O)=O)CCCCCCC)OC(C)C(O)C1OC1C(O)C(O)C(O)C(C)O1 HVCOBJNICQPDBP-UHFFFAOYSA-N 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- JDRSMPFHFNXQRB-CMTNHCDUSA-N Decyl beta-D-threo-hexopyranoside Chemical compound CCCCCCCCCCO[C@@H]1O[C@H](CO)C(O)[C@H](O)C1O JDRSMPFHFNXQRB-CMTNHCDUSA-N 0.000 description 1
- 229930186217 Glycolipid Natural products 0.000 description 1
- 108010028921 Lipopeptides Proteins 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 229920006318 anionic polymer Polymers 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 229920006317 cationic polymer Polymers 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004872 foam stabilizing agent Substances 0.000 description 1
- 239000008398 formation water Substances 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000191 poly(N-vinyl pyrrolidone) Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/584—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Medicinal Preparation (AREA)
Abstract
The invention discloses an anti-freezing foaming agent which comprises the following raw materials in parts by weight: 1) 0.1-100 parts of a foaming agent; 2) 1-100 parts of glycerol; 3) 0.1-100 parts of water. The invention also discloses an application method of the anti-freezing foaming agent. The invention can effectively solve the problems of freezing and solidification of the foaming agent during outdoor storage and transportation; when the methanol-methanol composite foaming agent is used for oil gas production and drainage gas production, the problem of continuous dosing in winter can be effectively solved, and the problem of reducing the foaming effect of the foaming agent by using methanol can be effectively solved; has the advantages of easy implementation, wide application, easy popularization and the like.
Description
Technical Field
The invention relates to the fields of active agent production, oil and gas production, drainage and gas production and outdoor fire fighting, in particular to an anti-freezing foaming agent and an application method thereof.
Background
At present, foaming agents are commonly applied in the production of domestic oil fields and gas fields, and have the following defects:
1) when the foaming agent is applied to the production of oil fields and gas fields, an outdoor dosing method is generally adopted, so that the foaming agent is frozen (or solidified) in severe cold winter, and the foaming agent cannot be used in winter in severe cold winter, so that the production of the oil fields and the gas fields is seriously influenced.
Known from the knowledge in the art: at present, the domestic foaming agent is generally an aqueous solution of an active agent, namely the foaming agent is generally prepared by dissolving the active agent in water; the finished foaming agent has higher viscosity at normal temperature, and is generally diluted by clear water before use; therefore, the freezing point (also called freezing point) of the foaming agent is usually higher than 0 ℃, the problem of freezing (or solidification) is inevitably existed in the winter severe cold environment below 0 ℃, and the problem of freezing (or solidification) in winter is inevitably existed in the long-term storage and dosing of the gas well site without power supply and heat source.
2) The fire extinguishing method of generating foam by using a foaming agent and spraying the foam is often used during outdoor fire fighting, so that the problem that the foaming agent is frozen (or solidified) to influence the fire extinguishing effect exists during outdoor fire fighting in severe cold winter, and the fire extinguishing process cannot be carried out in serious cases.
3) The foaming agent in the well site is difficult to keep in a liquid state for a long time in a severe cold environment in winter, so that the foaming agent cannot be continuously added into a gas well casing (or an oil pipe) in the well site by adopting a 24-hour continuous dosing method, and only a periodic intermittent dosing method can be adopted; because the gas well is in a continuous production state, if a foaming agent is not continuously added into a gas well casing (or an oil pipe) by adopting a continuous dosing method, the effect of gas well drainage is influenced, and the dosing amount of the foaming agent is greatly increased, so that the production cost of natural gas is increased.
Taking a Su Li Ge gas field as an example, the gas field is located in desert of Nemonton Ordos city, and no industrial power source or heat source is available at a well site of a gas well.
4) In order to solve the problem of freezing (or solidification) of the foaming agent during the drug adding in winter, methanol is usually added into the foaming agent for freeze prevention, so that the foaming performance of the foaming agent is greatly reduced, the drug adding amount and the drug adding cost are greatly increased, and the normal production and the gas production capacity (productivity) of an oil and gas well are influenced in severe cases.
Known from the knowledge in the art: the methanol has strong defoaming capability, and can greatly reduce the foaming effect and foam stabilizing performance of the foaming agent.
5) After methanol is added into a foaming agent, methanol contained in produced water of a gas well can be caused to form methanol sewage with high toxicity, so that the sewage treatment cost can be greatly increased, and serious hidden troubles in environmental protection can be generated. The patent application document with the publication number of CN110964488A discloses a technical scheme of a cold-resistant foaming agent and an application method thereof, which can solve the problem of freezing (or solidification) of the foaming agent during continuous dosing in winter. However, the patent application document does not refer to ethylene glycol and glycerol, nor does it indicate a specific method for solving the problem of freezing (or coagulation) of the foaming agent by using ethylene glycol and glycerol.
Disclosure of Invention
The term "blowing agent" in the present invention: also called foaming agent, foam discharging agent, water discharging agent and foaming agent.
The term "frother diluent" in the present invention: for short, diluent and sometimes foaming agent; this is a liquid obtained by diluting the blowing agent with water or methanol.
The term "foaming effect" in the present invention: also known as foaming capacity, foaming performance.
The term "active agent" in the present invention: is the abbreviation of surfactant; means that a small amount of a substance is present which can greatly reduce the surface tension.
The term "freeze protection" in the present invention: the foaming agent is also called cold-resistant, and refers to the phenomenon or/and performance that the foaming agent does not freeze or solidify below 0 ℃.
The term "freezing point" in the present invention: the freezing point refers to the temperature at which the foaming agent and the foam discharging agent dilute liquid have or/and lose fluidity under specified conditions.
The term "icing" in the present invention: also known as freezing and solidifying; refers to the appearance of lenses and/or loss of fluidity in liquids (including but not limited to foaming agents, foam-remover diluents)
The term "thickener" in the present invention: also known as foam stabilizers, broadly refers to substances that can improve foam stability.
The term "drainage gas production" in the present invention: the method is also called gas well drainage and gas well foam drainage, and refers to a process flow and a production process of carrying liquid (mainly water and possibly a small amount of liquid hydrocarbon) in a gas well shaft (or oil pipe) to a wellhead and a ground pipeline by a natural gas flow.
The term "produced water" in the present invention: also known as produced fluid, produced water, sewage or produced sewage, refers to formation water produced by a gas well or an oil well.
The term "dosing" in the present invention: refers to the process or procedure of adding a foaming agent or other chemical agent to an oil well, gas well, oil and gas production process flow, equipment, pipeline.
The term "gas well" in the present invention: refers to wells that produce hydrocarbon gas (or natural gas), including wells that produce coal bed gas, coal formed gas, shale gas.
The first technical problem to be solved by the invention is to provide an antifreezing foaming agent. The foaming agent can effectively solve the problems of freezing and solidification of the foaming agent during outdoor storage and transportation, can effectively solve the problem of reducing the foaming effect of the foaming agent by using methanol, and can effectively solve the environmental protection problem caused by the methanol contained in the foaming agent; and the foaming agent is easy to implement, wide in application and easy to popularize.
The second technical problem to be solved by the invention is to provide an application method of the anti-freezing foaming agent. The foaming agent application method can effectively solve the problem of continuous dosing in winter in water drainage and gas production and can effectively solve the problem that the foaming effect of the foaming agent is reduced by methanol; and the foaming agent application method is easy to implement, wide in application and easy to popularize.
In order to solve the first technical problem, a first technical solution adopted by the present invention is:
the invention relates to an anti-freezing foaming agent which comprises the following raw materials in parts by weight:
1) 0.1-100 parts of a foaming agent;
2) 1-100 parts of glycerol;
3) 0.1-100 parts of water.
Known from the knowledge in the art: the foaming agent can be in a solid state or a liquid state at normal temperature and normal pressure, and can also be in a slurry state or a solid-liquid mixture state; some liquid foaming agents contain no water, and some liquid foaming agents contain more than 95% of water; some foaming agents contain methanol or are dissolved by methanol, and some foaming agents do not contain methanol or are dissolved by methanol; some foaming agents contain a thickener; the foaming agent is dissolved in water whether in a solid state or a liquid state, a slurry state or a solid-liquid mixture state, and the dissolving process belongs to a mature technology.
Further, in substance 1), the foaming agent is any one of an anionic surfactant, a cationic surfactant, a nonionic surfactant, an amphoteric surfactant, a polymeric surfactant, and a biosurfactant, or a mixture of any two or more thereof in any ratio.
Known from the knowledge in the art: the anionic surfactant is a substance which can be dissociated in water and the part which has an active effect after the dissociation is anionic; the cationic surfactant is a substance which can be dissociated in water and the part which has an active effect after the dissociation is cationic; the non-ionic surfactant is an active agent which is not dissociated in water, and comprises any one of ester type active agent, span type active agent, ether type active agent, peregal type active agent, amine type active agent, amide type active agent, Tween type active agent and ester ether type active agent or a mixture of any more than two of the ester type active agent and the ether type active agent which are mixed in any proportion; the amphoteric surfactant refers to a substance with active part having two electrical properties, and comprises one or a mixture of more than two of nonionic-anionic active agent, nonionic-cationic active agent and anionic-cationic active agent; the polymer surfactant refers to an active agent with a relatively large molecular weight (such as a molecular weight of several thousands), and includes any one of an anionic polymer surfactant, a cationic polymer surfactant, a nonionic polymer surfactant and an amphoteric polymer surfactant, or a mixture of any two or more of them in any ratio.
Known from the knowledge in the art: the biosurfactant refers to a metabolite which is secreted by microorganisms in a metabolic process under certain conditions and has certain surface activity, such as glycolipid, polysaccharide lipid, lipopeptide or neutral lipid derivative, and the like, and is a degradable surfactant.
In order to solve the first technical problem, a second technical solution adopted by the present invention is:
the invention relates to an anti-freezing foaming agent which comprises the following raw materials in parts by weight:
1) 0.1-100 parts of a foaming agent;
2) 1-100 parts of ethylene glycol;
3) 0.1-100 parts of water.
Further, in substance 1), the foaming agent is any one of an anionic surfactant, a cationic surfactant, a nonionic surfactant, an amphoteric surfactant, a polymeric surfactant, and a biosurfactant, or a mixture of any two or more thereof in any ratio.
In order to solve the first technical problem, a third technical solution adopted by the present invention is:
the invention relates to an anti-freezing foaming agent which comprises the following raw materials in parts by weight:
1) 0.1-100 parts of a foaming agent;
2) 1-100 parts of glycerol;
3) 1-100 parts of organic salt;
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
4) 0.1-100 parts of water.
Further, in substance 1), the foaming agent is any one of an anionic surfactant, a cationic surfactant, a nonionic surfactant, an amphoteric surfactant, a polymeric surfactant, and a biosurfactant, or a mixture of any two or more thereof in any ratio.
Further, in substance 3), the formate refers to formate of potassium, sodium, rubidium, and cesium; the acetate refers to acetate of potassium, sodium, rubidium and cesium; the double-acid salt is any one or a mixture of any more than two of potassium diformate, potassium diacetate, sodium diformate, sodium diacetate, rubidium diformate, rubidium diacetate, cesium diformate and cesium diacetate in any proportion; the dehydroacetate is any one or a mixture of any two or more of dehydropotassium acetate, dehydrosodium acetate, dehydrorubidium acetate, dehydrocesium acetate and dehydroammonium acetate in any proportion; the lactate is any one or a mixture of any two or more of potassium lactate, sodium lactate, rubidium lactate, cesium lactate, calcium lactate and ammonium lactate.
In order to solve the first technical problem, a fourth technical solution adopted by the present invention is:
the invention relates to an anti-freezing foaming agent which comprises the following raw materials in parts by weight:
1) 0.1-100 parts of a foaming agent;
2) 1-100 parts of ethylene glycol;
3) 1-100 parts of organic salt;
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
4) 0.1-100 parts of water.
Further, in substance 1), the foaming agent is any one of an anionic surfactant, a cationic surfactant, a nonionic surfactant, an amphoteric surfactant, a polymeric surfactant, and a biosurfactant, or a mixture of any two or more thereof in any ratio.
Further, in substance 3), the formate refers to formate of potassium, sodium, rubidium, and cesium; the acetate refers to acetate of potassium, sodium, rubidium and cesium; the double-acid salt is any one or a mixture of any more than two of potassium diformate, potassium diacetate, sodium diformate, sodium diacetate, rubidium diformate, rubidium diacetate, cesium diformate and cesium diacetate in any proportion; the dehydroacetate is any one or a mixture of any two or more of dehydropotassium acetate, dehydrosodium acetate, dehydrorubidium acetate, dehydrocesium acetate and dehydroammonium acetate in any proportion; the lactate is any one or a mixture of any two or more of potassium lactate, sodium lactate, rubidium lactate, cesium lactate, calcium lactate and ammonium lactate.
In order to solve the first technical problem, a fifth technical solution adopted by the present invention is:
the invention relates to an anti-freezing foaming agent which comprises the following raw materials in parts by weight:
1) 0.1-100 parts of a foaming agent;
2) 1-100 parts of glycerol;
3) 1-100 parts of inorganic salt;
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
4) 0.1-100 parts of water.
Further, in the substance 3), the ammonium salt includes any one of ammonium nitrate, ammonium sulfate, ammonium selenate, ammonium thiocyanate and ammonium carbonate and ammonium bicarbonate or a mixture of any two or more of ammonium nitrate, ammonium sulfate, ammonium selenate, ammonium thiocyanate and ammonium carbonate and ammonium bicarbonate; the nitrate, nitrite, carbonate, chlorate and perchlorate of the potassium, sodium and cesium comprise any one of potassium nitrite, potassium nitrate, potassium selenate, potassium thiocyanate, potassium thiosulfate, sodium chlorate, cesium chlorate, sodium nitrite and sodium perchlorate or a mixture of any two of the above in any proportion.
In order to solve the first technical problem, a sixth technical solution adopted by the present invention is:
the invention relates to an anti-freezing foaming agent which comprises the following raw materials in parts by weight:
1) 0.1-100 parts of a foaming agent;
2) 1-100 parts of ethylene glycol;
3) 1-100 parts of inorganic salt;
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
4) 0.1-100 parts of water.
Further, in the substance 3), the ammonium salt includes any one of ammonium nitrate, ammonium sulfate, ammonium selenate, ammonium thiocyanate and ammonium carbonate and ammonium bicarbonate or a mixture of any two or more of ammonium nitrate, ammonium sulfate, ammonium selenate, ammonium thiocyanate and ammonium carbonate and ammonium bicarbonate; the nitrate, nitrite, carbonate, chlorate and perchlorate of the potassium, sodium and cesium comprise any one of potassium nitrite, potassium nitrate, potassium selenate, potassium thiocyanate, potassium thiosulfate, sodium chlorate, cesium chlorate, sodium nitrite and sodium perchlorate or a mixture of any two of the above in any proportion.
In order to solve the first technical problem, a seventh technical solution adopted by the present invention is:
the invention relates to an anti-freezing foaming agent which comprises the following raw materials in parts by weight:
in order to solve the first technical problem, an eighth technical solution adopted by the present invention is:
the invention relates to an anti-freezing foaming agent which comprises the following raw materials in parts by weight:
1) 0.1-100 parts of a foaming agent;
2) 1-100 parts of glycerol;
3) 1-100 parts of sugar;
the sugar comprises any one or a mixture of any two or more of sucrose, fructose and lactose in any proportion;
4) 0.1-100 parts of water.
In order to solve the first technical problem, a ninth technical solution adopted by the present invention is:
the invention relates to an anti-freezing foaming agent which comprises the following raw materials in parts by weight:
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
5) 0.1-100 parts of water.
In order to solve the first technical problem, a tenth technical solution adopted by the present invention is:
the invention relates to an anti-freezing foaming agent which comprises the following raw materials in parts by weight:
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
5) 0.1-100 parts of water.
In order to solve the first technical problem, an eleventh technical solution adopted by the present invention is:
the invention relates to an anti-freezing foaming agent which comprises the following raw materials in parts by weight:
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
the sugar comprises any one or a mixture of any two or more of sucrose, fructose and lactose in any proportion;
6) 0.1-100 parts of water.
In order to solve the first technical problem, a twelfth technical solution adopted by the present invention is:
the invention relates to an anti-freezing foaming agent which comprises the following raw materials in parts by weight:
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
the sugar comprises any one or a mixture of any two or more of sucrose, fructose and lactose in any proportion;
6) 0.1-100 parts of water.
In order to solve the first technical problem, a thirteenth technical solution adopted by the present invention is:
the invention relates to an anti-freezing foaming agent which comprises the following raw materials in parts by weight:
in order to solve the first technical problem, a fourteenth technical solution adopted by the present invention is:
the invention relates to an anti-freezing foaming agent which comprises the following raw materials in parts by weight:
1) 0.1-100 parts of a foaming agent;
2) 1-100 parts of ethylene glycol;
3) 1-100 parts of sugar;
the sugar comprises any one or a mixture of any two or more of sucrose, fructose and lactose in any proportion;
4) 0.1-100 parts of water.
In order to solve the first technical problem, a fifteenth technical solution adopted by the present invention is:
the invention relates to an anti-freezing foaming agent which comprises the following raw materials in parts by weight:
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
5) 0.1-100 parts of water.
In order to solve the first technical problem, a sixteenth technical solution adopted by the present invention is:
the invention relates to an anti-freezing foaming agent which comprises the following raw materials in parts by weight:
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
5) 0.1-100 parts of water.
In order to solve the first technical problem, a seventeenth technical solution adopted by the present invention is:
the invention relates to an anti-freezing foaming agent which comprises the following raw materials in parts by weight:
the sugar comprises any one or a mixture of any two or more of sucrose, fructose and lactose in any proportion;
5) 1-100 parts of organic salt;
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
6) 0.1-100 parts of water.
In order to solve the first technical problem, an eighteenth technical scheme adopted by the invention is as follows:
the invention relates to an anti-freezing foaming agent which comprises the following raw materials in parts by weight:
the sugar comprises any one or a mixture of any two or more of sucrose, fructose and lactose in any proportion;
5) 1-100 parts of inorganic salt;
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
6) 0.1-100 parts of water.
In order to solve the second technical problem, the application method of the anti-freezing foaming agent of the invention adopts a first technical scheme that: the invention relates to an application method of an anti-freezing foaming agent, which comprises the following steps: the anti-freezing foaming agent is added into a gas well or/and an oil well.
Furthermore, in order to better prevent the freezing of the anti-freezing foaming agent from freezing, the anti-freezing foaming agent is heated or/and is insulated to be more than 20 ℃ by using an insulating material, and then the anti-freezing foaming agent is added into a gas well or/and an oil well or a fire-fighting system.
In order to solve the second technical problem, the application method of the anti-freezing foaming agent of the invention adopts a second technical scheme that: the invention relates to an application method of an anti-freezing foaming agent, which comprises the following steps: the anti-freezing foaming agent is added into a low-lying natural gas pipeline, so that accumulated liquid in the low-lying pipeline can be smoothly taken away by airflow.
Known from the knowledge in the art: in mountainous areas with large topographic relief, the height difference of natural gas or coal bed gas pipelines is large, and accumulated liquid is more in pipelines in low-lying areas of the topography.
In order to solve the second technical problem, the third technical solution adopted by the application method of the anti-freezing foaming agent of the invention is as follows:
the invention relates to an application method of an anti-freezing foaming agent, which comprises the following steps:
1) firstly, mixing the anti-freezing foaming agent and the prevention and control agent or/and water according to the proportion of 1: diluting the mixture into an anti-freezing foaming agent diluent in a volume or weight ratio of 0.2-100 so as to meet the viscosity or/and filling amount requirement required by dosing of a gas well;
the prevention and control agent is any one of glycerol, glycol, urea aqueous solution, organic saline solution, inorganic saline solution and sugar water or a mixture of more than two of the glycerol, the glycol, the urea aqueous solution, the organic saline solution, the inorganic saline solution and the sugar water which are mixed in any proportion;
the organic salt aqueous solution contains more than 1% of organic salt, the inorganic salt aqueous solution contains more than 1% of inorganic salt, the urea aqueous solution contains more than 1% of urea, and the sugar aqueous solution contains more than 1% of sugar;
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
the sugar comprises any one or a mixture of any two or more of sucrose, fructose and lactose in any proportion;
2) the antifreeze foaming agent diluent is then added to the gas well.
Known from the knowledge in the art: the water can generate a large amount of foam by extremely low foaming agent concentration, the dosage of a foam discharging agent of the gas well is generally 1-10 liters per day, and the foaming agent concentration in the produced water of the gas well is generally 0.01-5%; the foaming agent has higher viscosity and lower dosage, and if the foaming agent with small volume is directly added into the air of an oil collar of a gas well, the foaming agent can be adhered to the inner wall of the oil collar and cannot enter the well bottom to play a role; therefore, before the foaming agent is added into a gas well, the foaming agent is generally diluted by 1-50% by using water.
In order to solve the second technical problem, the fourth technical solution adopted by the application method of the anti-freezing foaming agent of the present invention is:
the invention relates to an application method of an anti-freezing foaming agent, which comprises the following steps:
1) adding 1-50 liters of the anti-freezing foaming agent into the air of an oil collar of a gas well;
2) adding 2-500 liters of prevention and control agent into the air of an oil collar of a gas well, so that the gas well is drained and produced gas, the generation of hydrate is inhibited, and an anti-freezing foaming agent is carried to the bottom of the well;
the prevention and control agent is any one of glycerol, glycol, urea aqueous solution, organic saline solution, inorganic saline solution and sugar water or a mixture of more than two of the glycerol, the glycol, the urea aqueous solution, the organic saline solution, the inorganic saline solution and the sugar water which are mixed in any proportion;
the organic salt aqueous solution contains more than 1% of organic salt, the inorganic salt aqueous solution contains more than 1% of inorganic salt, the urea aqueous solution contains more than 1% of urea, and the sugar aqueous solution contains more than 1% of sugar;
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
the sugar comprises any one of sucrose, fructose and lactose or a mixture of any two or more of sucrose, fructose and lactose in any proportion.
In order to solve the first and second technical problems at the same time, the first technical solution adopted by the present invention is:
the invention relates to an anti-freezing foaming agent and an application method thereof, which comprises the following steps:
1) transporting foaming agent and prevention and control agent to well site;
2) mixing the foaming agent and the prevention and control agent into a mixture in any proportion so that the foaming agent can smoothly enter a gas well casing;
3) then adding the mixture of the foaming agent and the prevention and control agent mixed in any proportion into the air of an oil jacket of the gas well so that the foaming agent flows to the bottom of the well to play a foaming role;
the prevention and control agent is any one of glycerol, glycol, urea aqueous solution, organic saline solution, inorganic saline solution and sugar water or a mixture of more than two of the glycerol, the glycol, the urea aqueous solution, the organic saline solution, the inorganic saline solution and the sugar water which are mixed in any proportion;
the organic salt aqueous solution contains more than 1% of organic salt, the inorganic salt aqueous solution contains more than 1% of inorganic salt, the urea aqueous solution contains more than 1% of urea, and the sugar aqueous solution contains more than 1% of sugar;
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
the sugar comprises any one of sucrose, fructose and lactose or a mixture of any two or more of sucrose, fructose and lactose in any proportion.
Further, the foaming agent is any one of an anionic surfactant, a cationic surfactant, a nonionic surfactant, an amphoteric surfactant, a polymeric surfactant and a biosurfactant, or a mixture of any two or more of them in any ratio.
In order to solve the first and second technical problems at the same time, the second technical solution adopted by the present invention is:
the invention relates to an anti-freezing foaming agent and an application method thereof, which comprises the following steps:
1) using heating and heat preservation method to make the foaming agent reaching well site retain fluidity;
2) mixing the prevention and control agent and the foaming agent in any proportion so that the foaming agent still keeps fluidity at the temperature of the well site or/and the inner wall of the well casing;
3) then adding the mixture of the prevention and control agent and the foaming agent mixed in any proportion into the air of an oil jacket of the gas well so that the foaming agent flows to the bottom of the well to play a foaming role;
the prevention and control agent is any one of glycerol, glycol, urea aqueous solution, organic saline solution, inorganic saline solution and sugar water or a mixture of more than two of the glycerol, the glycol, the urea aqueous solution, the organic saline solution, the inorganic saline solution and the sugar water which are mixed in any proportion;
the organic salt aqueous solution contains more than 1% of organic salt, the inorganic salt aqueous solution contains more than 1% of inorganic salt, the urea aqueous solution contains more than 1% of urea, and the sugar aqueous solution contains more than 1% of sugar;
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
the sugar comprises any one of sucrose, fructose and lactose or a mixture of any two or more of sucrose, fructose and lactose in any proportion.
Further, the foaming agent is any one of an anionic surfactant, a cationic surfactant, a nonionic surfactant, an amphoteric surfactant, a polymeric surfactant and a biosurfactant, or a mixture of any two or more of them in any ratio.
In order to solve the first and second technical problems at the same time, the third technical solution adopted by the present invention is:
the invention relates to an application method of an anti-freezing foaming agent, which comprises the following steps:
1) adding a foaming agent into the air of an oil jacket of a gas well;
2) adding 2-500 liters of prevention and control agent into the air of an oil well oil collar so as to enable a foaming agent added into the air of the oil collar of the gas well to flow to the bottom of the well to play a foaming role;
the prevention and control agent is any one of glycerol, glycol, urea aqueous solution, organic saline solution, inorganic saline solution and sugar water or a mixture of more than two of the glycerol, the glycol, the urea aqueous solution, the organic saline solution, the inorganic saline solution and the sugar water which are mixed in any proportion;
the organic salt aqueous solution contains more than 1% of organic salt, the inorganic salt aqueous solution contains more than 1% of inorganic salt, the urea aqueous solution contains more than 1% of urea, and the sugar aqueous solution contains more than 1% of sugar;
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
the sugar comprises any one of sucrose, fructose and lactose or a mixture of any two or more of sucrose, fructose and lactose in any proportion.
Further, the foaming agent is any one of an anionic surfactant, a cationic surfactant, a nonionic surfactant, an amphoteric surfactant, a polymeric surfactant and a biosurfactant, or a mixture of any two or more of them in any ratio.
Any range recited herein is intended to include the endpoints and any number between the endpoints and any subrange subsumed therein or defined therein.
Compared with the prior art, the invention has the following beneficial effects:
the invention can effectively solve the problems of freezing and solidification of the foaming agent during outdoor storage and transportation, can effectively solve the problem of reducing the foaming effect of the foaming agent by using methanol, and can effectively solve the environmental protection problem caused by the methanol contained in the foaming agent; when the device is used in drainage and gas production, the problem of continuous dosing in winter can be effectively solved; has the advantages of easy implementation, wide application, easy popularization and the like.
Detailed Description
Example 1
An anti-freezing foaming agent, which comprises the following materials:
1) 0.1 part of sodium dodecyl benzene sulfonate with the content of 30 percent;
2) 1 part of glycerol;
3) 0.1 part of water.
The test of the invention shows that: 0.1 part of sodium dodecyl benzene sulfonate with the content of 30 percent and 0.1 part of water are respectively added into 1 part of glycerol and evenly mixed to prepare the anti-freezing foaming agent of the embodiment; further detection shows that: the freezing point of the anti-freezing foaming agent is lower than minus 2 ℃, and the anti-freezing foaming agent does not freeze, solidify or precipitate solid in an outdoor environment at minus 2 ℃, and has good anti-freezing capability; further laboratory tests show that: firstly, adding 45ml of produced water of the Xinxing gas field into a 100ml stopple measuring cylinder, then adding 5ml of the anti-freezing foaming agent into the 100ml stopple measuring cylinder, shaking up and down for 50 times, and standing, wherein the result shows that: the foaming height is more than 50ml, the foam half-life period is more than 5 minutes, and the total foam breaking time is more than 30 minutes; therefore, the anti-freezing foaming agent has good foaming effect and foaming capacity and meets the production requirement of the temporary gas field.
Known from the knowledge in the art: the minimum environmental temperature of the clinical Xinxing gas field for 10 months is-1 ℃.
Known from the knowledge in the art: the extremely low foaming agent concentration can enable the produced water of the gas well to generate a large amount of foam.
Known from the knowledge in the art: methanol and ethanol belong to alcohols and have strong defoaming capability (namely, the foaming capability of a defoaming agent is eliminated); glycerol is also called glycerol and also belongs to alcohol substances; there is no published data or prior case of success with glycerin to solve the foamer freeze protection problem.
Example 2
An antifreezing foaming agent, which comprises the following materials:
1) 50 parts of 30 percent dodecyl trimethyl ammonium chloride;
2) 50 parts of glycerol;
3) 50 parts of water.
The test of the invention shows that: 50 parts of dodecyl trimethyl ammonium chloride with the content of 50% and 50 parts of glycerol are respectively added into 50 parts of water and uniformly mixed to prepare the anti-freezing foaming agent; further detection shows that: the freezing point of the anti-freezing foaming agent is lower than minus 20 ℃, and the anti-freezing foaming agent does not freeze, solidify or precipitate solid in an outdoor environment at minus 20 ℃, and has good anti-freezing capability; further laboratory tests show that: firstly adding 48ml of produced water of the clinical aeronautical field into a 100ml stoppered measuring cylinder, then adding 2ml of the anti-freezing foaming agent into the 100ml stoppered measuring cylinder, shaking up and down for 50 times, and standing, wherein the result shows that: the foaming height is more than 50ml, the foam half-life period is more than 5 minutes, and the total foam breaking time is more than 30 minutes; therefore, the anti-freezing foaming agent has good foaming effect and foaming capacity and meets the production requirement of the temporary gas field.
Known from the knowledge in the art: the lowest environmental temperature of the clinical Xinxing gas field is-15 ℃.
Known from "oilfield chemistry" published by the university of petroleum press: dodecyl trimethyl ammonium chloride is generally used as a corrosion inhibitor and a bactericide; there is no disclosure or prior success of using it as a blowing agent.
Example 3
An anti-freezing foaming agent, which comprises the following materials:
1) OP-10100 parts;
2) 100 parts of glycerol;
3) 100 parts of water.
The test of the invention shows that: 100 parts of OP-10 and 100 parts of glycerol are respectively added into 100 parts of water and uniformly mixed to prepare the anti-freezing foaming agent; further detection shows that: the freezing point of the anti-freezing foaming agent is lower than minus 20 ℃, and the anti-freezing foaming agent does not freeze, solidify or precipitate solid in an outdoor environment at minus 20 ℃, and has good anti-freezing capability; further laboratory tests show that: adding 49ml of produced water of the clinical aeronautical field into a 100ml stoppered measuring cylinder, then adding 1ml of the anti-freezing foaming agent into the 100ml stoppered measuring cylinder, shaking up and down for 50 times, and standing, wherein the result shows that: the foaming height is more than 50ml, the foam half-life period is more than 5 minutes, and the total foam breaking time is more than 30 minutes; therefore, the anti-freezing foaming agent has good foaming effect and foaming capacity and meets the production requirement of the temporary gas field.
Example 4
An anti-freezing foaming agent, which comprises the following materials:
1) 100 parts of octyl decyl glucoside with the content of 50 percent;
2) 100 parts of glycerol;
3) 0.1 part of water.
The test of the invention shows that: 100 parts of capryl decyl glucoside with the content of 50 percent and 0.1 part of water are respectively added into 100 parts of glycerol and uniformly mixed to prepare the anti-freezing foaming agent of the embodiment; further detection shows that: the freezing point of the anti-freezing foaming agent is lower than-35 ℃, and the anti-freezing foaming agent does not freeze, solidify or precipitate solid in an outdoor environment at the temperature of-35 ℃, and has good anti-freezing capability; further laboratory tests show that: firstly adding 49m produced water of a Su Li Ge gas field into a 100ml stopple measuring cylinder, then adding 1ml of the anti-freezing foaming agent into the 100ml stopple measuring cylinder, shaking up and down for 50 times, and standing, wherein the result shows that: the foaming height is more than 50ml, the foam half-life period is more than 5 minutes, and the total foam breaking time is more than 30 minutes; therefore, the anti-freezing foaming agent has good foaming effect and foaming capacity and meets the production requirement of the Suliger gas field.
Known from the knowledge in the art: the lowest ambient temperature of the surrog gas field is-31 ℃.
Example 5
An anti-freezing foaming agent, which comprises the following materials:
1) 0.1 part of dodecyl benzyl dimethyl ammonium chloride;
2) 1 part of ethylene glycol;
3) 0.1 part of water.
The test of the invention shows that: 0.1 part of octyl decyl glucoside with the content of 50 percent and 0.1 part of water are respectively added into 1 part of glycol and evenly mixed to prepare the anti-freezing foaming agent of the embodiment; further detection shows that: the freezing point of the anti-freezing foaming agent is lower than minus 20 ℃, and the anti-freezing foaming agent does not freeze, solidify or precipitate solid in an outdoor environment at minus 20 ℃, and has good anti-freezing capability; further laboratory tests show that: firstly adding 48ml of produced water of the clinical aeronautical field into a 100ml stoppered measuring cylinder, then adding 2ml of the anti-freezing foaming agent into the 100ml stoppered measuring cylinder, shaking up and down for 50 times, and standing, wherein the result shows that: the foaming height is more than 50ml, the foam half-life period is more than 5 minutes, and the total foam breaking time is more than 30 minutes; therefore, the anti-freezing foaming agent has good foaming effect and foaming capacity and meets the production requirement of the temporary gas field.
Known from the knowledge in the art: methanol and ethanol belong to alcohols and have strong defoaming capability (namely, the foaming capability of a defoaming agent is eliminated); the glycol belongs to alcohol substances; there is no disclosure or prior success with ethylene glycol to solve the problem of blowing agent freeze protection.
Example 6
An anti-freezing foaming agent, which comprises the following materials:
1) 50 parts of sodium dodecyl sulfate;
2) 50 parts of ethylene glycol;
3) 50 parts of water.
The test of the invention shows that: 50 parts of sodium dodecyl sulfate and 50 parts of ethylene glycol are respectively added into 50 parts of water and uniformly mixed to prepare the anti-freezing foaming agent; further detection shows that: the freezing point of the anti-freezing foaming agent is lower than-35 ℃, and the anti-freezing foaming agent does not freeze, solidify or precipitate solid in an outdoor environment at the temperature of-35 ℃, and has good anti-freezing capability; further laboratory tests show that: adding 49ml of produced water of a Su Li Ge gas field into a 100ml stopple measuring cylinder, then adding 1ml of the anti-freezing foaming agent into the 100ml stopple measuring cylinder, shaking up and down for 50 times, and standing, wherein the result shows that: the foaming height is more than 50ml, the foam half-life period is more than 5 minutes, and the total foam breaking time is more than 30 minutes; therefore, the anti-freezing foaming agent has good foaming effect and foaming capacity and meets the production requirement of the Suliger gas field.
Example 7
An anti-freezing foaming agent, which comprises the following materials:
1) 100 parts of lauroyl diethanol amine;
2) 100 parts of ethylene glycol;
3) 100 parts of water.
The test of the invention shows that: 100 parts of lauroyl diethanol amine and 100 parts of ethylene glycol are respectively added into 100 parts of water and uniformly mixed to prepare the anti-freezing foaming agent; further detection shows that: the freezing point of the anti-freezing foaming agent is lower than-35 ℃, and the anti-freezing foaming agent does not freeze, solidify or precipitate solid in an outdoor environment at the temperature of-35 ℃, and has good anti-freezing capability; further laboratory tests show that: adding 49ml of produced water of an astringency north gas field into a 100ml stoppered measuring cylinder, then adding 1ml of the anti-freezing foaming agent into the 100ml stoppered measuring cylinder, shaking up and down for 50 times, and standing, wherein the result shows that: the foaming height is more than 50ml, the foam half-life period is more than 5 minutes, and the total foam breaking time is more than 30 minutes; therefore, the antifreezing foaming agent has good foaming effect and foaming capacity, and meets the production requirement of an astringing north gas field.
Known from the knowledge in the art: the minimum ambient temperature in the astringency field was-25 ℃.
Example 8
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃; the foaming height of 3 percent in the produced water of the Xinxing gas field exceeds 50ml, the half-life period of the foam exceeds 5 minutes, and the total foam breaking time exceeds 30 minutes; meets the production requirements of the clinical and Xinxing gas field.
Example 9
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than minus 25 ℃; the foaming height of 0.5 percent in the produced water of the gas field is prolonged to be more than 50ml, the half-life period of the foam is more than 5 minutes, and the total foam breaking time is more than 30 minutes; the production requirement of the gas field is met.
Example 10
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than minus 25 ℃; the foaming height of 3 percent in the produced water of the gas field is prolonged to be more than 50ml, the half-life period of the foam is more than 5 minutes, and the total foam breaking time is more than 30 minutes; the production requirement of the gas field is met.
Example 11
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃; the foaming height of 1.5 percent in the produced water of the Xinxing gas field exceeds 50ml, the half-life period of the foam exceeds 5 minutes, and the total foam breaking time exceeds 30 minutes; meets the production requirements of the clinical and Xinxing gas field.
Example 12
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃; the foaming height of 2.5 percent in the produced water of the gas field is prolonged to be more than 50ml, the half-life period of the foam is more than 5 minutes, and the total foam breaking time is more than 30 minutes; the production requirement of the gas field is met.
Example 13
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 3% exceeds 50 ml.
Example 14
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than minus 30 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2 percent exceeds 50 ml.
Example 15
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than minus 30 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 16
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-25 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 17
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-25 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 18
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-25 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 19
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-25 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2% exceeds 50 ml.
Example 20
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-25 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 21
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2% exceeds 50 ml.
Example 22
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Test comparative example 1
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than minus 20 ℃, and the foaming height of the anti-freezing foaming agent with the concentration of 2 percent in produced water of a gas field exceeds 50 ml; but the content of magnesium ions in the anti-freezing foaming agent is up to 6 percent, and the anti-freezing foaming agent can cause severe scaling of a gas well and a pipeline when being added into the gas well; therefore, the comparative test example cannot meet the production requirements of the gas field.
Test comparative example 2
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than minus 20 ℃, and the foaming height of the anti-freezing foaming agent with the concentration of 2 percent in produced water of a gas field exceeds 50 ml; however, the content of calcium ions in the anti-freezing foaming agent is up to 9 percent, and the anti-freezing foaming agent can cause severe scaling of gas wells and pipelines when added into gas wells; therefore, the comparative test example cannot meet the production requirements of the gas field.
Example 23
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 24
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2% exceeds 50 ml.
Example 25
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 26
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 27
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-15 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2% exceeds 50 ml.
Example 28
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2% exceeds 50 ml.
Example 29
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 30
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-15 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2% exceeds 50 ml.
Example 31
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 32
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 33
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-15 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2% exceeds 50 ml.
Example 34
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-15 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2% exceeds 50 ml.
Example 35
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-15 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2% exceeds 50 ml.
Example 36
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-15 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2% exceeds 50 ml.
Example 37
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 38
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 39
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 40
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2% exceeds 50 ml.
EXAMPLE 41
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2% exceeds 50 ml.
Example 42
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2% exceeds 50 ml.
Example 43
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2% exceeds 50 ml.
Example 44
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2% exceeds 50 ml.
Example 45
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2% exceeds 50 ml.
Example 46
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-35 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 47
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-35 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 48
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2% exceeds 50 ml.
Example 49
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-35 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2% exceeds 50 ml.
Example 50
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-35 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 51
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2% exceeds 50 ml.
Example 52
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-35 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 53
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-35 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 54
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 55
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-35 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 56
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-35 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 57
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than minus 30 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 58
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-35 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 59
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-35 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2% exceeds 50 ml.
Example 60
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-20 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 2% exceeds 50 ml.
Example 61
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than minus 30 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 62
An anti-freezing foaming agent, which comprises the following materials:
the test of the invention shows that: the freezing point of the anti-freezing foaming agent is lower than-35 ℃, and the foaming height of the anti-freezing foaming agent in gas field produced water with the concentration of 1% exceeds 50 ml.
Example 63
The invention relates to an application method of an anti-freezing foaming agent, which comprises the following steps: the anti-freezing foaming agent disclosed in any one of embodiments 1-62 of the invention is added into a gas well or/and an oil well.
Further, in order to better prevent the freezing of the anti-freezing foaming agent, the anti-freezing foaming agent of any one of the embodiments 1 to 62 of the invention is heated or/and is insulated to a temperature of more than 20 ℃ by using an insulating material, and then the anti-freezing foaming agent of any one of the embodiments 1 to 62 of the invention is added into a gas well or/and an oil well or a fire-fighting system.
Example 64
The invention relates to an application method of an anti-freezing foaming agent, which comprises the following steps: the antifreeze foaming agent of any one of the embodiments 1 to 62 of the invention is added into a low-lying natural gas pipeline, so that the accumulated liquid in the low-lying pipeline can be smoothly taken away by the gas flow.
Further, in order to better prevent the freezing of the anti-freezing foaming agent, the anti-freezing foaming agent of any one of the embodiments 1 to 62 is heated or/and is insulated to a temperature of more than 20 ℃ by using an insulating material, and then the anti-freezing foaming agent of any one of the embodiments 1 to 62 is added into the low-lying natural gas pipeline.
Known from the knowledge in the art: in mountain areas with large topographic relief, the height difference of natural gas or coal bed gas pipelines is large, accumulated liquid in pipelines in low-lying areas of the topography is large, and accumulated liquid in the pipelines can be carried to a high place by using foam.
Example 65
The invention relates to an application method of an anti-freezing foaming agent, which comprises the following steps:
1) firstly, mixing the anti-freezing foaming agent in any one of the embodiments 1 to 62 of the invention with an anti-control agent or/and water according to the proportion of 1: diluting the mixture into an anti-freezing foaming agent diluent in a volume or weight ratio of 0.2-100 so as to meet the viscosity or/and filling amount requirement required by dosing of a gas well;
the prevention and control agent is any one of glycerol, glycol, urea aqueous solution, organic saline solution, inorganic saline solution and sugar water or a mixture of more than two of the glycerol, the glycol, the urea aqueous solution, the organic saline solution, the inorganic saline solution and the sugar water which are mixed in any proportion;
the organic salt aqueous solution contains more than 1% of organic salt, the inorganic salt aqueous solution contains more than 1% of inorganic salt, the urea aqueous solution contains more than 1% of urea, and the sugar aqueous solution contains more than 1% of sugar;
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
the sugar comprises any one or a mixture of any two or more of sucrose, fructose and lactose in any proportion;
2) the antifreeze foaming agent diluent is then added to the gas well.
Known from the knowledge in the art: the water can generate a large amount of foam by extremely low foaming agent concentration, the dosage of a foam discharging agent of the gas well is generally 1-10 liters per day, and the foaming agent concentration in the produced water of the gas well is generally 0.01-5%; the foaming agent has higher viscosity and lower dosage, and if the foaming agent with small volume is directly added into the air of an oil collar of a gas well, the foaming agent can be adhered to the inner wall of the oil collar and cannot enter the well bottom to play a role; therefore, before the foaming agent is added into a gas well, the foaming agent is generally diluted by 1-50% by using water.
The test of the invention shows that: the freezing point of the anti-freezing foaming agent in the embodiment 1 of the invention is-2.5 ℃; mixing the anti-freezing foaming agent and water according to the proportion of 1: 1.5, the freezing point of the diluted anti-freezing foaming agent diluted by the weight ratio is lower than-35 ℃, and the freezing point of the anti-freezing foaming agent 1 is lower than 32 ℃; the foaming height of 10 percent of the antifreeze foaming agent diluent added into 50ml of produced water of the Su Li Ge gas field exceeds 50ml, thereby meeting the production requirement of the Su Li Ge gas field.
The test of the invention shows that: the freezing point of a 50% potassium formate aqueous solution is lower than minus 50 ℃; the freezing point of the anti-freezing foaming agent in the embodiment 7 of the invention is lower than-35 ℃; mixing the anti-freezing foaming agent and 50% potassium formate aqueous solution according to the weight ratio of 1: the freezing point of the diluted antifreezing foaming agent diluted by 10 weight percent is lower than-48 ℃ and is 13 ℃ lower than that of the antifreezing foaming agent in example 7; the foaming height of 5 percent of the antifreeze foaming agent diluent added into 50ml of produced water of the northbound gas field exceeds 50ml, thereby meeting the production requirement of the northbound gas field.
Example 66
The invention relates to an application method of an anti-freezing foaming agent, which comprises the following steps:
1) adding 1-50 liters of the anti-freezing foaming agent in any one of embodiments 1-62 of the invention into the air of an oil well collar;
2) adding 2-500 liters of prevention and control agent into the air of an oil collar of a gas well, so that the gas well is drained and produced gas, the generation of hydrate is inhibited, and an anti-freezing foaming agent is carried to the bottom of the well;
the prevention and control agent is any one of glycerol, glycol, urea aqueous solution, organic saline solution, inorganic saline solution and sugar water or a mixture of more than two of the glycerol, the glycol, the urea aqueous solution, the organic saline solution, the inorganic saline solution and the sugar water which are mixed in any proportion;
the organic salt aqueous solution contains more than 1% of organic salt, the inorganic salt aqueous solution contains more than 1% of inorganic salt, the urea aqueous solution contains more than 1% of urea, and the sugar aqueous solution contains more than 1% of sugar;
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
the sugar comprises any one of sucrose, fructose and lactose or a mixture of any two or more of sucrose, fructose and lactose in any proportion.
The test of the invention shows that: the freezing point of a 40% potassium formate aqueous solution is lower than minus 40 ℃; the freezing point of the anti-freezing foaming agent in the embodiment 7 of the invention is lower than-35 ℃; therefore, after 10 liters of the anti-freezing foaming agent is added into the air of the oil well casing of the Suliger gas field, 100 liters of 40 percent potassium formate aqueous solution is added into the air of the oil well casing, the anti-freezing foaming agent can be carried to the bottom of the well, and the generation of hydrate can be inhibited while the water and the gas are drained and produced from the gas well, so that the production requirement of the Suliger gas field is met.
Known from the knowledge in the art: the potassium formate aqueous solution can inhibit the formation of hydrate.
Example 67
The invention relates to an anti-freezing foaming agent and an application method thereof, which comprises the following substances and steps:
1) transporting foaming agent and prevention and control agent to well site;
2) mixing the foaming agent and the prevention and control agent into a mixture in any proportion so that the foaming agent can smoothly enter a gas well casing;
3) then adding the mixture of the foaming agent and the prevention and control agent mixed in any proportion into the air of an oil jacket of the gas well so that the foaming agent flows to the bottom of the well to play a foaming role;
the prevention and control agent is any one of glycerol, glycol, urea aqueous solution, organic saline solution, inorganic saline solution and sugar water or a mixture of more than two of the glycerol, the glycol, the urea aqueous solution, the organic saline solution, the inorganic saline solution and the sugar water which are mixed in any proportion;
the organic salt aqueous solution contains more than 1% of organic salt, the inorganic salt aqueous solution contains more than 1% of inorganic salt, the urea aqueous solution contains more than 1% of urea, and the sugar aqueous solution contains more than 1% of sugar;
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
the sugar comprises any one of sucrose, fructose and lactose or a mixture of any two or more of sucrose, fructose and lactose in any proportion.
Further, the foaming agent is any one of an anionic surfactant, a cationic surfactant, a nonionic surfactant, an amphoteric surfactant, a polymeric surfactant and a biosurfactant, or a mixture of any two or more of them in any ratio.
The test of the invention shows that: the freezing point of dodecyl benzyl dimethyl ammonium chloride containing 50 percent of water is 0 ℃, and the freezing point of glycerol is-1 ℃; mixing glycerol and 50% aqueous dodecylbenzyldimethylammonium chloride according to the volume ratio of 1:1, and then enabling the freezing point to be lower than-35 ℃; further experiments with the present invention show that: in an environment of-20 ℃,1 liter of glycerol is added into 1 liter of 50 percent dodecyl benzyl dimethyl ammonium chloride which is solidified into solid, and the 50 percent dodecyl benzyl dimethyl ammonium chloride which is solidified into solid can be melted into uniform liquid with good fluidity; therefore, after the glycerol and the dodecyl benzyl dimethyl ammonium chloride with the water content of 50% are mixed according to the volume ratio of 1:1 at the Suliger gas field well site, the 50% dodecyl benzyl dimethyl ammonium chloride can smoothly enter the gas well casing and flow to the bottom of the well to play a foaming role.
The test of the invention shows that: the freezing point of dodecyl trimethyl ammonium chloride containing 70% of water is 0 ℃, and the freezing point of glycol is-13 ℃; mixing ethylene glycol and 70% aqueous dodecyl trimethyl ammonium chloride according to the volume ratio of 1:1, and then enabling the freezing point to be lower than-40 ℃; further experiments with the present invention show that: 1 liter of ethylene glycol is added into 1 liter of solidified solid 70 percent dodecyl trimethyl ammonium chloride in an environment of-20 ℃, and the solidified solid 70 percent dodecyl trimethyl ammonium chloride can be melted into uniform liquid with good fluidity; therefore, after the ethylene glycol and the dodecyl trimethyl ammonium chloride with 70% of water are mixed according to the volume ratio of 1:1 at the Suliger gas field well site, the 70% of dodecyl trimethyl ammonium chloride can smoothly enter the gas well casing and flow to the bottom of the well to play a foaming role.
The test of the invention shows that: the freezing point of the octyl decyl glucoside with the content of 50 percent is 2 ℃, and the freezing point of a prevention and control agent formed by mixing 50 percent of potassium formate, 30 percent of glycol and 20 percent of water is lower than minus 50 ℃; the freezing point (or freezing point) of the prevention and control agent and the caprylyl decyl glucoside with the content of 50 percent are lower than-35 ℃ after being mixed according to the weight ratio of 3: 1; further experiments with the present invention show that: in an environment of minus 20 ℃, 3 kilograms of prevention and control agent which is formed by mixing 50 percent of potassium formate, 30 percent of ethylene glycol and 20 percent of water is added into 1 kilogram of 50 percent of octyl decyl glucoside solidified into a solid, and the 50 percent of octyl decyl glucoside solidified into the solid can be melted into uniform liquid with good fluidity; therefore, after the control agent is mixed with the octyl decyl glucoside with the content of 50% at a well site according to the weight ratio of 3:1, the 50% of the octyl decyl glucoside can smoothly enter the casing of the gas well and flow to the bottom of the well to play a foaming role.
The test of the invention shows that: the freezing point of the 60 percent potassium formate water solution is lower than minus 40 ℃, and the freezing point of OP-10 is minus 1 ℃; mixing 60% potassium formate water solution and OP-10 according to the weight ratio of 2:1, wherein the freezing point (or freezing point) is lower than-35 ℃; further experiments with the present invention show that: 2 kilograms of 60 percent potassium formate aqueous solution is added into 1 kilogram of solidified solid OP-10 in the environment of minus 20 ℃, so that the solidified solid OP-10 can be melted into uniform liquid with good fluidity; therefore, after the 60% potassium formate aqueous solution is mixed with OP-10 at a well site according to the weight ratio of 2:1, the OP-10 can smoothly enter the casing of the gas well and flow to the bottom of the well to play a foaming role.
The test of the invention shows that: the freezing point of the 40 percent ammonium sulfate aqueous solution is lower than minus 30 ℃, and the freezing point of OP-10 is minus 1 ℃; mixing 40% ammonium sulfate water solution and OP-10 at a weight ratio of 2:1, wherein the freezing point (or freezing point) is lower than-25 deg.C; further experiments with the present invention show that: 2 kilograms of 40 percent ammonium sulfate aqueous solution is added into 1 kilogram of solidified solid OP-10 in the environment of minus 20 ℃, so that the solidified solid OP-10 can be melted into uniform liquid with good fluidity; therefore, after the 40% ammonium sulfate aqueous solution is mixed with OP-10 at a well site according to the weight ratio of 2:1, the OP-10 can smoothly enter the casing of the gas well and flow to the bottom of the well to play a foaming role.
Example 68
The invention relates to an anti-freezing foaming agent and an application method thereof, which comprises the following substances and steps:
1) using heating and heat preservation method to make the foaming agent reaching well site retain fluidity;
2) mixing the prevention and control agent and the foaming agent in any proportion so that the foaming agent still keeps fluidity at the temperature of the well site or/and the inner wall of the well casing;
3) then adding the mixture of the prevention and control agent and the foaming agent mixed in any proportion into the air of an oil jacket of the gas well so that the foaming agent flows to the bottom of the well to play a foaming role;
the prevention and control agent is any one of glycerol, glycol, urea aqueous solution, organic saline solution, inorganic saline solution and sugar water or a mixture of more than two of the glycerol, the glycol, the urea aqueous solution, the organic saline solution, the inorganic saline solution and the sugar water which are mixed in any proportion;
the organic salt aqueous solution contains more than 1% of organic salt, the inorganic salt aqueous solution contains more than 1% of inorganic salt, the urea aqueous solution contains more than 1% of urea, and the sugar aqueous solution contains more than 1% of sugar;
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
the sugar comprises any one of sucrose, fructose and lactose or a mixture of any two or more of sucrose, fructose and lactose in any proportion.
Further, the foaming agent is any one of an anionic surfactant, a cationic surfactant, a nonionic surfactant, an amphoteric surfactant, a polymeric surfactant and a biosurfactant, or a mixture of any two or more of them in any ratio.
The test of the invention shows that: the freezing point of dodecyl benzyl dimethyl ammonium chloride is 0 ℃, and the freezing point of a 60 percent sucrose aqueous solution is lower than-20 ℃; mixing 60% sucrose aqueous solution and dodecyl benzyl dimethyl ammonium chloride according to the volume ratio of 4:1, and then enabling the freezing point to be lower than-20 ℃; further experiments with the present invention show that: under the environment of-10 ℃, dodecyl benzyl dimethyl ammonium chloride reaching a well site can be kept at the temperature of more than 30 ℃ by heating and heat preservation methods and has good fluidity, and a 60 percent sucrose aqueous solution at the temperature of-10 ℃ is added into 1 liter of dodecyl benzyl dimethyl ammonium chloride at the temperature of 30 ℃ in 4 liters, so that a flowing liquid with the freezing point lower than-20 ℃ and the temperature of more than 0 ℃ can be formed; therefore, after the 60% sucrose aqueous solution and the 30 ℃ dodecyl benzyl dimethyl ammonium chloride liquid are mixed according to the volume ratio of 4:1 at the Suliger gas field well site, the dodecyl benzyl dimethyl ammonium chloride can smoothly enter the gas well casing and flow to the bottom of the well to play a foaming role.
Example 69
The invention relates to an anti-freezing foaming agent and an application method thereof, which comprises the following substances and steps:
1) adding a foaming agent into the air of an oil jacket of a gas well;
2) adding 2-500 liters of prevention and control agent into the air of an oil well oil collar so as to enable a foaming agent added into the air of the oil collar of the gas well to flow to the bottom of the well to play a foaming role;
the prevention and control agent is any one of glycerol, glycol, urea aqueous solution, organic saline solution, inorganic saline solution and sugar water or a mixture of more than two of the glycerol, the glycol, the urea aqueous solution, the organic saline solution, the inorganic saline solution and the sugar water which are mixed in any proportion;
the organic salt aqueous solution contains more than 1% of organic salt, the inorganic salt aqueous solution contains more than 1% of inorganic salt, the urea aqueous solution contains more than 1% of urea, and the sugar aqueous solution contains more than 1% of sugar;
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
the sugar comprises any one of sucrose, fructose and lactose or a mixture of any two or more of sucrose, fructose and lactose in any proportion.
Further, the foaming agent is any one of an anionic surfactant, a cationic surfactant, a nonionic surfactant, an amphoteric surfactant, a polymeric surfactant and a biosurfactant, or a mixture of any two or more of them in any ratio.
The test of the invention shows that: the freezing point of the 60% potassium formate aqueous solution is lower than minus 40 ℃, the potassium formate aqueous solution can dissolve and melt OP-10 with the temperature of minus 35 ℃ and can be mutually soluble with liquid OP-10; therefore, after 5 liters of OP-10 is added into the air of the oil well collar of the Suliger gas field, 200 liters of 60 percent potassium formate aqueous solution can be used for carrying the 5 liters of OP-10 added into the air of the oil well collar of the Suliger gas field to the bottom of the well, thereby meeting the production requirement of the Suliger gas field.
Known from the knowledge in the art: OP-10 entering the bottom of a gas well can dissolve in the sewage at the bottom of the gas well and can produce a large amount of foam.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes and modifications which are obvious to the technical scheme of the invention are covered by the protection scope of the invention.
Claims (29)
1. An anti-freezing foaming agent is characterized by comprising the following raw materials in parts by weight:
1) 0.1-100 parts of a foaming agent;
2) 1-100 parts of glycerol;
3) 0.1-100 parts of water.
2. An anti-freezing foaming agent is characterized by comprising the following raw materials in parts by weight:
1) 0.1-100 parts of a foaming agent;
2) 1-100 parts of ethylene glycol;
3) 0.1-100 parts of water.
3. An anti-freezing foaming agent is characterized by comprising the following raw materials in parts by weight:
1) 0.1-100 parts of a foaming agent;
2) 1-100 parts of glycerol;
3) 1-100 parts of organic salt;
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
4) 0.1-100 parts of water.
4. An anti-freezing foaming agent is characterized by comprising the following raw materials in parts by weight:
1) 0.1-100 parts of a foaming agent;
2) 1-100 parts of ethylene glycol;
3) 1-100 parts of organic salt;
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
4) 0.1-100 parts of water.
5. An anti-freezing foaming agent is characterized by comprising the following raw materials in parts by weight:
1) 0.1-100 parts of a foaming agent;
2) 1-100 parts of glycerol;
3) 1-100 parts of inorganic salt;
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
4) 0.1-100 parts of water.
6. An anti-freezing foaming agent is characterized by comprising the following raw materials in parts by weight:
1) 0.1-100 parts of a foaming agent;
2) 1-100 parts of ethylene glycol;
3) 1-100 parts of inorganic salt;
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
4) 0.1-100 parts of water.
7. An anti-freezing foaming agent is characterized by comprising the following raw materials in parts by weight:
8. an anti-freezing foaming agent is characterized by comprising the following raw materials in parts by weight:
1) 0.1-100 parts of a foaming agent;
2) 1-100 parts of glycerol;
3) 1-100 parts of sugar;
the sugar comprises any one or a mixture of any two or more of sucrose, fructose and lactose in any proportion;
4) 0.1-100 parts of water.
9. An anti-freezing foaming agent is characterized by comprising the following raw materials in parts by weight:
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
5) 0.1-100 parts of water.
10. An anti-freezing foaming agent is characterized by comprising the following raw materials in parts by weight:
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
5) 0.1-100 parts of water.
11. An anti-freezing foaming agent is characterized by comprising the following raw materials in parts by weight:
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
the sugar comprises any one or a mixture of any two or more of sucrose, fructose and lactose in any proportion;
6) 0.1-100 parts of water.
12. An anti-freezing foaming agent is characterized by comprising the following raw materials in parts by weight:
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
the sugar comprises any one or a mixture of any two or more of sucrose, fructose and lactose in any proportion;
6) 0.1-100 parts of water.
13. An anti-freezing foaming agent is characterized by comprising the following raw materials in parts by weight:
14. an anti-freezing foaming agent is characterized by comprising the following raw materials in parts by weight:
1) 0.1-100 parts of a foaming agent;
2) 1-100 parts of ethylene glycol;
3) 1-100 parts of sugar;
the sugar comprises any one or a mixture of any two or more of sucrose, fructose and lactose in any proportion;
4) 0.1-100 parts of water.
15. An anti-freezing foaming agent is characterized by comprising the following raw materials in parts by weight:
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
5) 0.1-100 parts of water.
16. An anti-freezing foaming agent is characterized by comprising the following raw materials in parts by weight:
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
5) 0.1-100 parts of water.
17. An anti-freezing foaming agent is characterized by comprising the following raw materials in parts by weight:
the sugar comprises any one or a mixture of any two or more of sucrose, fructose and lactose in any proportion;
5) 1-100 parts of organic salt;
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
6) 0.1-100 parts of water.
18. An anti-freezing foaming agent is characterized by comprising the following raw materials in parts by weight:
the sugar comprises any one or a mixture of any two or more of sucrose, fructose and lactose in any proportion;
5) 1-100 parts of inorganic salt;
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
6) 0.1-100 parts of water.
19. The application method of the anti-freezing foaming agent is characterized by comprising the following steps: the addition of the anti-freeze blowing agent of any of claims 1 to 18 to gas and/or oil wells.
20. The method of claim 19, comprising the steps of: the anti-freezing foaming agent is heated or/and heat-insulating material is used for preserving the temperature to be more than 20 ℃, and then the anti-freezing foaming agent is added into a gas well or/and an oil well or a fire-fighting system.
21. The application method of the anti-freezing foaming agent is characterized by comprising the following steps: the anti-freeze foaming agent as claimed in any one of claims 1 to 18 is added to a low-lying natural gas pipeline so that the gas flow smoothly carries away the accumulated liquid in the low-lying pipeline.
22. The application method of the anti-freezing foaming agent is characterized by comprising the following steps:
1) mixing the anti-freezing foaming agent as claimed in any one of claims 1 to 18 with an anti-control agent or/and water in a ratio of 1: diluting the mixture into an anti-freezing foaming agent diluent in a volume or weight ratio of 0.2-100 so as to meet the viscosity or/and filling amount requirement required by dosing of a gas well;
the prevention and control agent is any one of glycerol, glycol, urea aqueous solution, organic saline solution, inorganic saline solution and sugar water or a mixture of more than two of the glycerol, the glycol, the urea aqueous solution, the organic saline solution, the inorganic saline solution and the sugar water which are mixed in any proportion;
the organic salt aqueous solution contains more than 1% of organic salt, the inorganic salt aqueous solution contains more than 1% of inorganic salt, the urea aqueous solution contains more than 1% of urea, and the sugar aqueous solution contains more than 1% of sugar;
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
the sugar comprises any one of sucrose, fructose and lactose or a mixture of any two or more of sucrose, fructose and lactose in any proportion.
2) The antifreeze foaming agent diluent is then added to the gas well.
23. The application method of the anti-freezing foaming agent is characterized by comprising the following steps:
1) adding 1-50 liters of the anti-freezing foaming agent as described in any one of claims 1-18 into the air of an oil well collar;
2) adding 2-500 liters of prevention and control agent into the air of an oil collar of a gas well, so that the gas well is drained and produced gas, the generation of hydrate is inhibited, and an anti-freezing foaming agent is carried to the bottom of the well;
the prevention and control agent is any one of glycerol, glycol, urea aqueous solution, organic saline solution, inorganic saline solution and sugar water or a mixture of more than two of the glycerol, the glycol, the urea aqueous solution, the organic saline solution, the inorganic saline solution and the sugar water which are mixed in any proportion;
the organic salt aqueous solution contains more than 1% of organic salt, the inorganic salt aqueous solution contains more than 1% of inorganic salt, the urea aqueous solution contains more than 1% of urea, and the sugar aqueous solution contains more than 1% of sugar;
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
the sugar comprises any one of sucrose, fructose and lactose or a mixture of any two or more of sucrose, fructose and lactose in any proportion.
24. The application method of the anti-freezing foaming agent is characterized by comprising the following steps:
1) transporting foaming agent and prevention and control agent to well site;
2) mixing the foaming agent and the prevention and control agent into a mixture in any proportion so that the foaming agent can smoothly enter a gas well casing;
3) then adding the mixture of the foaming agent and the prevention and control agent mixed in any proportion into the air of an oil jacket of the gas well so that the foaming agent flows to the bottom of the well to play a foaming role;
the prevention and control agent is any one of glycerol, glycol, urea aqueous solution, organic saline solution, inorganic saline solution and sugar water or a mixture of more than two of the glycerol, the glycol, the urea aqueous solution, the organic saline solution, the inorganic saline solution and the sugar water which are mixed in any proportion;
the organic salt aqueous solution contains more than 1% of organic salt, the inorganic salt aqueous solution contains more than 1% of inorganic salt, the urea aqueous solution contains more than 1% of urea, and the sugar aqueous solution contains more than 1% of sugar;
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
the sugar comprises any one of sucrose, fructose and lactose or a mixture of any two or more of sucrose, fructose and lactose in any proportion.
25. The application method of the anti-freezing foaming agent is characterized by comprising the following steps:
1) using heating and heat preservation method to make the foaming agent reaching well site retain fluidity;
2) mixing the prevention and control agent and the foaming agent in any proportion so that the foaming agent still keeps fluidity at the temperature of the well site or/and the inner wall of the well casing;
3) then adding the mixture of the prevention and control agent and the foaming agent mixed in any proportion into the air of an oil jacket of the gas well so that the foaming agent flows to the bottom of the well to play a foaming role;
the prevention and control agent is any one of glycerol, glycol, urea aqueous solution, organic saline solution, inorganic saline solution and sugar water or a mixture of more than two of the glycerol, the glycol, the urea aqueous solution, the organic saline solution, the inorganic saline solution and the sugar water which are mixed in any proportion;
the organic salt aqueous solution contains more than 1% of organic salt, the inorganic salt aqueous solution contains more than 1% of inorganic salt, the urea aqueous solution contains more than 1% of urea, and the sugar aqueous solution contains more than 1% of sugar;
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
the sugar comprises any one of sucrose, fructose and lactose or a mixture of any two or more of sucrose, fructose and lactose in any proportion.
26. The application method of the anti-freezing foaming agent is characterized by comprising the following steps:
1) adding a foaming agent into the air of an oil jacket of a gas well;
2) adding 2-500 liters of prevention and control agent into the air of an oil well oil collar so as to enable a foaming agent added into the air of the oil collar of the gas well to flow to the bottom of the well to play a foaming role;
the prevention and control agent is any one of glycerol, glycol, urea aqueous solution, organic saline solution, inorganic saline solution and sugar water or a mixture of more than two of the glycerol, the glycol, the urea aqueous solution, the organic saline solution, the inorganic saline solution and the sugar water which are mixed in any proportion;
the organic salt aqueous solution contains more than 1% of organic salt, the inorganic salt aqueous solution contains more than 1% of inorganic salt, the urea aqueous solution contains more than 1% of urea, and the sugar aqueous solution contains more than 1% of sugar;
the organic salt comprises any one of formate, acetate, double salt, dehydroacetate and lactate or a mixture of any two or more of formate, acetate, double salt, dehydroacetate and lactate in any proportion;
the inorganic salt comprises any one or a mixture of any two or more of the following substances in any proportion: ammonium salts, nitrates of potassium, sodium or cesium, nitrites of potassium, sodium or cesium, carbonates of potassium, sodium or cesium, chlorates of potassium, sodium or cesium, perchlorates of potassium, sodium or cesium, bicarbonates of potassium, sodium or cesium, cesium sulfate, zinc nitrate, zinc chlorate and manganese nitrate;
the sugar comprises any one of sucrose, fructose and lactose or a mixture of any two or more of sucrose, fructose and lactose in any proportion.
27. The antifreeze foaming agent as claimed in any one of claims 1 to 18 and 24 to 26, wherein: the foaming agent is any one or a mixture of any two or more of an anionic surfactant, a cationic surfactant, a nonionic surfactant, an amphoteric surfactant, a high molecular surfactant and a biosurfactant which are mixed in any proportion.
28. The antifreeze foaming agent as claimed in any one of claims 3, 4, 9, 11, 15, 17 and 22 to 26, wherein: the formate refers to formate of potassium, sodium, rubidium and cesium; the acetate refers to acetate of potassium, sodium, rubidium and cesium; the double-acid salt is any one or a mixture of any more than two of potassium diformate, potassium diacetate, sodium diformate, sodium diacetate, rubidium diformate, rubidium diacetate, cesium diformate and cesium diacetate in any proportion; the dehydroacetate is any one or a mixture of any two or more of dehydropotassium acetate, dehydrosodium acetate, dehydrorubidium acetate, dehydrocesium acetate and dehydroammonium acetate in any proportion; the lactate is any one or a mixture of any two or more of potassium lactate, sodium lactate, rubidium lactate, cesium lactate, calcium lactate and ammonium lactate.
29. The antifreeze foaming agent as claimed in any one of claims 5, 6, 10, 12, 16, 18 and 22 to 26, wherein: the ammonium salt comprises any one or a mixture of any two or more of ammonium nitrate, ammonium sulfate, ammonium selenate, ammonium thiocyanate, ammonium carbonate, ammonium bicarbonate and ammonium chloride in any proportion; the nitrate, nitrite, carbonate, chlorate, perchlorate and bicarbonate of potassium, sodium and cesium comprise one or a mixture of more than two of potassium nitrite, sodium nitrite, potassium nitrate, sodium nitrate, potassium selenate, potassium thiocyanate, potassium thiosulfate, sodium chlorate, sodium perchlorate, sodium bicarbonate and potassium bicarbonate in any proportion.
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| CN202110780035.1A CN113559782A (en) | 2021-07-09 | 2021-07-09 | Antifreezing foaming agent and application method thereof |
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Cited By (1)
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