WO2014167011A1 - Fliessfähige zusammensetzung zur thermischen behandlung von bohrlöchern - Google Patents
Fliessfähige zusammensetzung zur thermischen behandlung von bohrlöchern Download PDFInfo
- Publication number
- WO2014167011A1 WO2014167011A1 PCT/EP2014/057178 EP2014057178W WO2014167011A1 WO 2014167011 A1 WO2014167011 A1 WO 2014167011A1 EP 2014057178 W EP2014057178 W EP 2014057178W WO 2014167011 A1 WO2014167011 A1 WO 2014167011A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- flowable composition
- water
- metal component
- solid component
- hydroreactive
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 148
- 230000009969 flowable effect Effects 0.000 title claims abstract description 124
- 238000007669 thermal treatment Methods 0.000 title claims description 25
- 229910052751 metal Inorganic materials 0.000 claims abstract description 137
- 239000002184 metal Substances 0.000 claims abstract description 137
- 239000007787 solid Substances 0.000 claims abstract description 101
- 229920000642 polymer Polymers 0.000 claims abstract description 85
- 239000008365 aqueous carrier Substances 0.000 claims abstract description 47
- 239000012530 fluid Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 72
- 239000007788 liquid Substances 0.000 claims description 57
- 229910052782 aluminium Inorganic materials 0.000 claims description 53
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 53
- 238000000034 method Methods 0.000 claims description 39
- 238000007254 oxidation reaction Methods 0.000 claims description 39
- 238000002161 passivation Methods 0.000 claims description 34
- 238000004519 manufacturing process Methods 0.000 claims description 29
- 239000002245 particle Substances 0.000 claims description 21
- 229920003169 water-soluble polymer Polymers 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 18
- 239000002994 raw material Substances 0.000 claims description 12
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 11
- 239000006185 dispersion Substances 0.000 claims description 11
- 229910052733 gallium Inorganic materials 0.000 claims description 11
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 10
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 8
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 8
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 7
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 7
- 229910052718 tin Inorganic materials 0.000 claims description 7
- 229910052738 indium Inorganic materials 0.000 claims description 6
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 6
- 239000011118 polyvinyl acetate Substances 0.000 claims description 6
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 5
- 229920001451 polypropylene glycol Polymers 0.000 claims description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 40
- 239000011435 rock Substances 0.000 description 30
- 230000015572 biosynthetic process Effects 0.000 description 28
- 238000005755 formation reaction Methods 0.000 description 28
- 239000007789 gas Substances 0.000 description 28
- 239000003921 oil Substances 0.000 description 25
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 24
- 229920001577 copolymer Polymers 0.000 description 22
- 239000003345 natural gas Substances 0.000 description 20
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 19
- 239000004202 carbamide Substances 0.000 description 19
- 239000000178 monomer Substances 0.000 description 18
- 239000011777 magnesium Substances 0.000 description 17
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 16
- 229910052749 magnesium Inorganic materials 0.000 description 16
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 14
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 14
- 238000004891 communication Methods 0.000 description 14
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 13
- 125000000129 anionic group Chemical group 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 13
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 12
- 229920003134 Eudragit® polymer Polymers 0.000 description 12
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 12
- 239000000126 substance Substances 0.000 description 12
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 11
- 238000000576 coating method Methods 0.000 description 11
- 238000002347 injection Methods 0.000 description 11
- 239000007924 injection Substances 0.000 description 11
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 10
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 10
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 9
- 230000035699 permeability Effects 0.000 description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 239000002360 explosive Substances 0.000 description 8
- 230000007935 neutral effect Effects 0.000 description 8
- 239000007800 oxidant agent Substances 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 239000003208 petroleum Substances 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 7
- -1 alkyl radical Chemical class 0.000 description 7
- 230000007423 decrease Effects 0.000 description 7
- 239000000295 fuel oil Substances 0.000 description 7
- 229920000578 graft copolymer Polymers 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 229910052783 alkali metal Inorganic materials 0.000 description 5
- 150000001340 alkali metals Chemical class 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000004090 dissolution Methods 0.000 description 5
- 238000000605 extraction Methods 0.000 description 5
- 239000008398 formation water Substances 0.000 description 5
- 235000011187 glycerol Nutrition 0.000 description 5
- 239000011346 highly viscous material Substances 0.000 description 5
- 229920001223 polyethylene glycol Polymers 0.000 description 5
- 239000002562 thickening agent Substances 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 4
- 229920001503 Glucan Polymers 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 239000002202 Polyethylene glycol Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 4
- 239000010426 asphalt Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 230000007062 hydrolysis Effects 0.000 description 4
- 238000006460 hydrolysis reaction Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 4
- 229920002554 vinyl polymer Polymers 0.000 description 4
- JWYVGKFDLWWQJX-UHFFFAOYSA-N 1-ethenylazepan-2-one Chemical compound C=CN1CCCCCC1=O JWYVGKFDLWWQJX-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 229920001519 homopolymer Polymers 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000003209 petroleum derivative Substances 0.000 description 3
- 229920000191 poly(N-vinyl pyrrolidone) Polymers 0.000 description 3
- 229920002401 polyacrylamide Polymers 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000008118 PEG 6000 Substances 0.000 description 2
- 229920002584 Polyethylene Glycol 6000 Polymers 0.000 description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 2
- AWMVMTVKBNGEAK-UHFFFAOYSA-N Styrene oxide Chemical class C1OC1C1=CC=CC=C1 AWMVMTVKBNGEAK-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000003093 cationic surfactant Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- GDCRSXZBSIRSFR-UHFFFAOYSA-N ethyl prop-2-enoate;2-methylprop-2-enoic acid Chemical compound CC(=C)C(O)=O.CCOC(=O)C=C GDCRSXZBSIRSFR-UHFFFAOYSA-N 0.000 description 2
- 230000007717 exclusion Effects 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 229920000233 poly(alkylene oxides) Polymers 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 125000001453 quaternary ammonium group Chemical group 0.000 description 2
- 238000010526 radical polymerization reaction Methods 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000003079 shale oil Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229920001285 xanthan gum Polymers 0.000 description 2
- FFYRIXSGFSWFAQ-UHFFFAOYSA-N 1-dodecylpyridin-1-ium Chemical class CCCCCCCCCCCC[N+]1=CC=CC=C1 FFYRIXSGFSWFAQ-UHFFFAOYSA-N 0.000 description 1
- UENCOZAJOJQVED-UHFFFAOYSA-L 1-hexadecylpyridin-1-ium;sulfate Chemical compound [O-]S([O-])(=O)=O.CCCCCCCCCCCCCCCC[N+]1=CC=CC=C1.CCCCCCCCCCCCCCCC[N+]1=CC=CC=C1 UENCOZAJOJQVED-UHFFFAOYSA-L 0.000 description 1
- GDDNTTHUKVNJRA-UHFFFAOYSA-N 3-bromo-3,3-difluoroprop-1-ene Chemical compound FC(F)(Br)C=C GDDNTTHUKVNJRA-UHFFFAOYSA-N 0.000 description 1
- GJCOSYZMQJWQCA-UHFFFAOYSA-N 9H-xanthene Chemical compound C1=CC=C2CC3=CC=CC=C3OC2=C1 GJCOSYZMQJWQCA-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 1
- 229920003143 Eudragit® FS 30 D Polymers 0.000 description 1
- 229920003135 Eudragit® L 100-55 Polymers 0.000 description 1
- 229920003138 Eudragit® L 30 D-55 Polymers 0.000 description 1
- 229920003136 Eudragit® L polymer Polymers 0.000 description 1
- 229920003153 Eudragit® NE polymer Polymers 0.000 description 1
- 229920003152 Eudragit® RS polymer Polymers 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- 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 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical class C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229920002535 Polyethylene Glycol 1500 Polymers 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical class C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical class C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- 241000282485 Vulpes vulpes Species 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 125000002877 alkyl aryl group Chemical group 0.000 description 1
- 229920013820 alkyl cellulose Polymers 0.000 description 1
- 150000008051 alkyl sulfates Chemical class 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 229920006318 anionic polymer Polymers 0.000 description 1
- 239000011260 aqueous acid Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 235000010980 cellulose Nutrition 0.000 description 1
- 229920006217 cellulose acetate butyrate Polymers 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229920001531 copovidone Polymers 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- AXZAYXJCENRGIM-UHFFFAOYSA-J dipotassium;tetrabromoplatinum(2-) Chemical compound [K+].[K+].[Br-].[Br-].[Br-].[Br-].[Pt+2] AXZAYXJCENRGIM-UHFFFAOYSA-J 0.000 description 1
- 239000004815 dispersion polymer Substances 0.000 description 1
- VFNGKCDDZUSWLR-UHFFFAOYSA-N disulfuric acid Chemical class OS(=O)(=O)OS(O)(=O)=O VFNGKCDDZUSWLR-UHFFFAOYSA-N 0.000 description 1
- HBRNMIYLJIXXEE-UHFFFAOYSA-N dodecylazanium;acetate Chemical compound CC(O)=O.CCCCCCCCCCCCN HBRNMIYLJIXXEE-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- HQPMKSGTIOYHJT-UHFFFAOYSA-N ethane-1,2-diol;propane-1,2-diol Chemical compound OCCO.CC(O)CO HQPMKSGTIOYHJT-UHFFFAOYSA-N 0.000 description 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- FSXVSUSRJXIJHB-UHFFFAOYSA-M ethyl prop-2-enoate;methyl 2-methylprop-2-enoate;trimethyl-[2-(2-methylprop-2-enoyloxy)ethyl]azanium;chloride Chemical compound [Cl-].CCOC(=O)C=C.COC(=O)C(C)=C.CC(=C)C(=O)OCC[N+](C)(C)C FSXVSUSRJXIJHB-UHFFFAOYSA-M 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 1
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 1
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 1
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 1
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical class C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 150000004681 metal hydrides Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910000595 mu-metal Inorganic materials 0.000 description 1
- 235000019457 neutral methacrylate copolymer Nutrition 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000001814 pectin Substances 0.000 description 1
- 235000010987 pectin Nutrition 0.000 description 1
- 229920001277 pectin Polymers 0.000 description 1
- 239000008016 pharmaceutical coating Substances 0.000 description 1
- 150000004714 phosphonium salts Chemical class 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 229920006316 polyvinylpyrrolidine Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910001487 potassium perchlorate Inorganic materials 0.000 description 1
- 229940069328 povidone Drugs 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 150000003864 primary ammonium salts Chemical class 0.000 description 1
- WTXMTPLATLKWQS-UHFFFAOYSA-N propane Chemical class CC[CH2+] WTXMTPLATLKWQS-UHFFFAOYSA-N 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 150000003865 secondary ammonium salts Chemical class 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- BAZAXWOYCMUHIX-UHFFFAOYSA-M sodium perchlorate Chemical compound [Na+].[O-]Cl(=O)(=O)=O BAZAXWOYCMUHIX-UHFFFAOYSA-M 0.000 description 1
- 229910001488 sodium perchlorate Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 150000003866 tertiary ammonium salts Chemical class 0.000 description 1
- VUYXVWGKCKTUMF-UHFFFAOYSA-N tetratriacontaethylene glycol monomethyl ether Chemical compound COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO VUYXVWGKCKTUMF-UHFFFAOYSA-N 0.000 description 1
- 239000003832 thermite Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 1
- 229920001567 vinyl ester resin Polymers 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
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/524—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/243—Combustion in situ
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B31/00—Compositions containing an inorganic nitrogen-oxygen salt
- C06B31/28—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate
- C06B31/30—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate with vegetable matter; with resin; with rubber
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
- C06B45/18—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component
- C06B45/30—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component the component base containing an inorganic explosive or an inorganic thermic component
- C06B45/32—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component the component base containing an inorganic explosive or an inorganic thermic component the coating containing an organic compound
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B47/00—Compositions in which the components are separately stored until the moment of burning or explosion, e.g. "Sprengel"-type explosives; Suspensions of solid component in a normally non-explosive liquid phase, including a thickened aqueous phase
-
- 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
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/536—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning characterised by their form or by the form of their components, e.g. encapsulated material
-
- 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
- C09K8/592—Compositions used in combination with generated heat, e.g. by steam injection
-
- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/66—Compositions based on water or polar solvents
- C09K8/665—Compositions based on water or polar solvents containing inorganic compounds
-
- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/66—Compositions based on water or polar solvents
- C09K8/68—Compositions based on water or polar solvents containing organic compounds
-
- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/70—Compositions for forming crevices or fractures characterised by their form or by the form of their components, e.g. foams
-
- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/845—Compositions based on water or polar solvents containing inorganic compounds
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/008—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using chemical heat generating means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
Definitions
- the present invention relates to a flowable composition (FZ) for the thermal treatment of voids, to a process for the thermal treatment of voids and to the use of the flowable composition (FZ) for the thermal treatment of voids.
- fluid raw materials such as oil and / or natural gas
- underground deposits usually at least one well is sunk into the underground deposit, which subsequently feeds the fluid raw material.
- the delivery rate depends to a great extent on the permeability of the reservoir rocks and the rock layers, which adjoin the bore. The more permeable these rock layers or the storage rocks are, the higher the delivery rate of fluid raw material, for example crude oil and / or natural gas, which can be achieved.
- High production rates are necessary to make underground deposits economically viable.
- One crucial factor for the production rate is the hydrodynamic communication between the well and the productive layer of the underground deposit (geological formation).
- the productive layer is generally referred to as the layer of geological formation containing the fluid raw material such as petroleum or natural gas.
- hydroaulic fracturing hydroaulic fracturing or fracturing of an underground rock layer in a geological formation or reservoir
- water is injected into the subterranean reservoir under pressure, whereby the water, also called fracturing fluid, is pressurized into the fluid to be crushed or pumped to crumbling rock layer, which is sufficient to separate the rock layers or break.
- fracturing fluid also called fracturing fluid
- hydraulic fracturing is meant the occurrence of a fracture event in the surrounding rock of a well due to the hydraulic action of a liquid or gas pressure on the rock of the underground reservoir
- the section of the well, the surrounding rock of which has fractures, also acts as a perforation zone or perforation area designated.
- thermal treatment methods are described in the prior art to improve the hydrodynamic communication between bore and productive layer.
- RU 2 401 381 describes flowable compositions containing aluminum particles or aluminum alloy particles for thermal treatment of underground deposits with the aim of improving hydrodynamic communication.
- the aluminum particles are suspended in an anhydrous carrier liquid and have no passivation layer.
- the aluminum particles may also contain other alloying metals such as tin, gallium and cadmium. Kerosene, petroleum or gas condensate are used as carrier liquid, for example.
- the flowable composition may further contain proppants.
- the flowable composition is injected into the underground reservoir. Subsequently, the aluminum contained in the flowable composition is contacted with water to initiate the oxidation reaction between aluminum and water. For this purpose, water is subsequently injected into the subterranean formation. The exothermic oxidation reaction generates heat and gases are formed. The heat and gas evolution, along with concomitant pressure buildup, dissolves deposits in the subterranean reservoir, improving hydrodynamic communication between the productive bed and the well.
- the flowable composition described in RU 2 401 381 contains an anhydrous carrier liquid to prevent the spontaneous oxidation reaction of the aluminum overground.
- the aluminum particles are protected by the anhydrous carrier liquid from contact with water and / or atmospheric oxygen.
- a disadvantage of this method is that the anhydrous carrier fluids used are hydrophobic. As a result, the contact of the aluminum particles with water is hindered. This is particularly problematic if the flowable composition of RU 2 401 381 is pressed into small cracks, so-called "frac gaps.” In such frac gaps, the velocity of the subsequently injected water is very low, so that the oxidation reaction between aluminum In addition, the flowable composition can also penetrate into rock spores, which is not reached by the subsequently injected water at all become.
- US 7,946,342 discloses the thermal treatment of an underground deposit.
- an aqueous mixture containing alkali, alkaline earth metals or metal hydrides coated with a water-soluble coating is introduced into a bore where it undergoes an exothermic reaction with the water after the water-soluble coating has dissolved.
- the exothermic reaction creates heat and gases are formed. These are transferred to the deposit, thereby reducing the viscosity of the petroleum, allowing for improved oil production.
- a disadvantage of the method described in US Pat. No. 7,946,342 is the high thermal load on the bore due to the exothermic chemical reaction.
- US 2,672,201 also describes a process in which an underground deposit is thermally treated with sodium or potassium.
- the alkali metal is placed in the reservoir either as a slurry in an inert liquid or coated with a water-soluble coating. If the alkali metal is introduced as a slurry into the underground deposit, the injection of water is then necessary, with which the metal reacts exothermically. Alkali metals encased in a water-soluble coating are introduced into the reservoir in an aqueous solution and react exothermically with the water as soon as the coating has dissolved.
- the alkali and alkaline earth metals described in US Pat. Nos. 7,946,342 and 2,672,201 are highly reactive. Therefore, the mixtures are difficult to handle and storage requires elaborate security measures. This makes the described method very complex and expensive.
- the injection of the alkali metals in an inert liquid also requires subsequent injection of water to initiate the exothermic reaction. Since the carrier liquids used are hydrophobic, the contact of the metal particles with water is hindered. If water does not react fully with the particles, the deposit may be watered down.
- the still WO 2014/049021 describes a method in which a flowable composition is used which contains aluminum particles, water and urea.
- the aluminum particles according to WO 2014/049021 in this case have a passivation layer consisting of aluminum oxide and / or aluminum hydroxide. This passivation layer slows down the oxidation reaction of the aluminum with water.
- the flowable composition is injected into an underground reservoir.
- the passivation layer slowly dissolves in the underground deposit. After the dissolution of the passivation layer, the actual exothermic oxidation reaction between aluminum and water begins. The released heat dissolves deposits in the underground reservoir and improves hydrodynamic communication.
- the flowable composition described in WO 2014/049021 has the advantage over the flowable composition described in RU 2 401 381 that the joint injection of aluminum particles and water reliably ensures that the oxidation reaction of aluminum with water takes place used amount of water can be better matched to the amount of aluminum used, so that dilution of the underground reservoir can be reduced or prevented.
- the aluminum particles contained in the flowable composition according to WO 2014/049021 have a passivation layer. These passivation layers can be different in thickness. Due to the different thicknesses of the passivation layers, the period of time during which the passivation layer is dissolved and the oxidation reaction between aluminum and water begins can not be reliably predicted.
- the object of the present invention is thus to provide a flowable composition (FZ), which are those described above in the prior art described disadvantages or only to a reduced extent.
- the flowable composition (FZ) should be safe to handle.
- the oxidation reaction between the metal component used and water should take place reliably and allow a more accurate adjustment of the amount of water to the amount of metal component used.
- the period of time during which the oxidation reaction between the water contained in the aqueous carrier liquid and the metal component used should be more accurately predictable.
- the flowable composition (FZ) should be able to be safely introduced into cavities. In particular, a spontaneous uncontrolled onset of the oxidation reaction between water and the metal component used should be prevented.
- a flowable composition comprising (A) an aqueous carrier liquid (WT) and (B) a solid component (FK) containing a hydroreactive metal component (MK) which is enveloped by a water-soluble polymer (P) wherein the solid component (FK) is suspended in the aqueous carrier liquid (WT).
- the flowable composition (FZ) according to the invention is suitable for the thermal treatment of cavities.
- Flowable in this context means that the flowable composition (FZ) can be pumped by conventional pumps.
- the cavities which can be thermally treated with the flowable composition (FZ) may be, for example, cavities in a geological formation, preferably cavities in underground deposits.
- the cavities may be of natural origin or artificially created. Examples of cavities of natural origin are cavities formed by geotectonic processes or by dissolution and leaching of certain minerals in a geological formation.
- artificially created cavities are wells and pipelines, as well as cracks produced by processes such as "hydraulic fracturing” (hydraulic fracturing or fracturing of a subterranean rock layer in a geological formation or reservoir) or thermal processes such as thermite reactions or blasts in the geological formation
- Artificial voids are also voids formed by production processes in a geological formation, such as the extraction of natural gas, oil, groundwater, coal, minerals and ores Be formed by burning or gasification of raw materials, such as coal in a geological formation.
- Cavities that may be treated with the flowable composition (FZ) include, for example, pipelines, wells, or cavities in underground reservoirs such as shale gas deposits, tight gas deposits, shale oil deposits, dense host rock oil reservoirs, Bituminous and heavy oil deposits, coal deposits, mineral deposits as well as
- the deposits may be, for example, high-viscosity substances such as paraffins, high-viscosity petroleum oils or bitumen (asphaltenes).
- the flowable composition (FZ) according to the invention is particularly suitable for the thermal treatment of fissures and fractures in subterranean formations formed by hydraulic fracturing and in which, in the further course of oil or natural gas production, a decrease in the permeability due to the deposition of the abovementioned highly viscous substances was registered. With the aid of the flowable composition (FZ) according to the invention, the above-described high-viscosity substances can be effectively removed from the gaps and fractures which have arisen due to hydraulic fracturing.
- the flowable composition can be used, for example, to stimulate wells, mine rock formations, ignite combustible geomaterials such as coal, petroleum or natural gas, and other combustible or explosive materials and to clean wells and pipelines.
- combustible geomaterials such as coal, petroleum or natural gas, and other combustible or explosive materials
- the flowable composition (FZ) has the advantage over the flowable compositions described in the prior art that the exothermic oxidation reaction between the hydroreactive metal component (MK) and the in the aqueous carrier liquid (WT) contained water is safely guaranteed.
- the flowable composition (FZ) moreover has the advantage that the period of time within which the oxidation reaction between the water of the aqueous carrier liquid (WT) and the hydroreactive metal component (MK) starts is more precisely plannable.
- the flowable composition (FZ) is also inexpensive and easy to produce by the use of an aqueous carrier liquid (WT).
- the flowable composition of the present invention is not a thermal composition in one embodiment.
- Thermocomposites are compositions that have a metal as the fuel component and an oxide of a metal other than the fuel component, such as iron oxide and aluminum, as the oxidizing agent.
- the flowable composition (FZ) according to the invention contains an aqueous carrier liquid (WT).
- WT aqueous carrier liquid
- water itself or a mixture of water with other solvents such as glycerin can be used.
- the aqueous carrier liquid (WT) may additionally contain further additives in dissolved form.
- Additives which may optionally be present in dissolved form in the aqueous carrier liquid (WT) are, for example, thickeners, surfactants, urea, oxidants, acids and alkalis.
- Suitable thickeners are, for example, synthetic polymers, such as polyacrylamide or copolymers of acrylamide and other monomers, especially monomers having sulfonic acid groups, and also polymers of natural origin, such as, for example, glucosylglucans, xanthan, diuthanes or glucan.
- Preferred thickener is glucan.
- the content of thickener in the aqueous carrier liquid (WT) may generally be in the range of 0.01 to 5 wt .-%, based on the total weight of the aqueous carrier liquid (WT).
- the viscosity of the flowable composition (FZ) is generally in the range from 100 to 1500 mPa * s, preferably in the range from 200 to 1000 mPa * s and particularly preferably in the range from 300 to 800 mPa * s.
- the flowable composition (FZ) may also have higher or lower viscosities.
- surfactants anionic, cationic and nonionic surfactants can be used.
- Common nonionic surfactants are, for example, ethoxylated mono-, di- and trialkylphenols, ethoxylated fatty alcohols and polyalkylene oxides.
- polyalkylene oxides preferably C 2 -C 4 -alkylene oxides and phenylsubstituted C 2 -C 4 -alkylene oxides, in particular polyethyleneoxides, polypropyleneoxides and poly (phenylethyleneoxides), especially block copolymers, in particular polypropylene oxide and polyethylene oxide blocks or poly (phenylethylene oxide) and Polyethylene oxide blocks having polymers, and also random copolymers of these alkylene oxides suitable.
- Alkylenoxidblockcopolymerisate are known and commercially z.
- suitable anionic surfactants are alkali metal and ammonium salts of alkyl sulfates (alkyl radical: C 8 -C 12 ), of sulfuric monoesters of ethoxylated alkanols (alkyl radical: C 12 -C 18 ) and ethoxylated alkylphenols (US Pat. Alkyl radicals: C 4 -C 12 ) and of alkylsulfonic acids (alkyl radical: C 12 -C 18 ).
- Suitable cationic surfactants are, for example, C 6 -C 18 -alkyl, alkylaryl or heterocyclic radicals, primary, secondary, tertiary or quaternary ammonium salts, pyridinium salts, imidazolinium salts, oxozolinium salts, morpholinium salts, propylium salts, sulfonium salts and phosphonium salts.
- the content of surfactant in the aqueous carrier liquid (WT) may generally be in the range of 0.01 to 5 wt .-%, based on the total weight of the aqueous carrier liquid (WT).
- the aqueous carrier liquid (WT) may contain urea or ammonium salt (such as ammonium nitrate) in dissolved form.
- the urea is present in dissolved form in the aqueous carrier liquid (WT).
- the urea is generally dissolved in the aqueous carrier liquid (WT) in such amounts that the flowable composition (FZ) contains 5 to 40% by weight of urea based on the total weight of the flowable composition (FZ).
- the flowable composition (FZ) contains from 10 to 40 weight percent urea, based on the total weight of the flowable composition (FZ).
- urea converts into ammonia and carbon dioxide by hydrolysis in the presence of water. The hydrolysis follows the following reaction equation: H 2 N-CO-NH 2 + H 2 O 2 NH 3 + C0 2
- urea thus, the amount of gas generated by the flowable composition (FZ) can be increased.
- the hydrolysis of the urea increases the pH of the aqueous carrier liquid (WT), since the ammonia dissolves well in the water.
- the caustic that forms directly in the deposit aids dissolution of the hydrogen-soluble polymer (P) and promotes the oxidation reaction between the hydroreactive metal component (MK) and the water of the aqueous carrier liquid (WT).
- urea for example, a 32.5% strength by weight aqueous urea solution can also be used directly as the aqueous carrier liquid (WT).
- aqueous carrier liquid (WT) may additionally comprise oxidizing agents in dissolved form Suitable oxidizing agents are, for example, ammonium nitrate, ammonium perchlorate, sodium perchlorate, potassium perchlorate and hydrogen peroxide, with ammonium nitrate being preferred
- the oxidizing agent is generally dissolved in such amounts in the aqueous carrier liquid (WT) that the flowable composition (FZ) 1 to 30 wt .-%, preferably 10 to 20 wt .-%, oxidizing agent, preferably ammonium nitrate, in each case based on the total weight of the flowable composition (FZ) .
- an aqueous solution containing ammonium nitrate can be
- the aqueous carrier liquid (WT) may also contain acids or alkalis. These can be used to adjust the pH of the flowable composition (FZ). Suitable acids are, for example, nitric acid, sulfuric acid and hydrochloric acid, hydrochloric acid being preferred. Suitable alkalis are, for example, sodium hydroxide and potassium hydroxide.
- the pH of the aqueous carrier liquid (WT) in the flowable composition (FZ) is generally in the range of 0 to 12.
- the pH of the aqueous carrier liquid (WT) in the flowable composition (FZ) is generally tuned to the water-soluble polymer (P), which encloses the hydroreactive metal component (MK) in the solid component (FK).
- the density of the aqueous carrier liquid (WT) is generally in the range of 1 g / cm 3 to 3 g / cm 3 .
- the flowable composition (FZ) contains at least one solid component (FK) containing a hydroreactive metal component (MK) coated with a water-soluble polymer (P).
- hydroreactive metal component one or more metals and metal alloys can be used.
- hydroreactive is meant herein that the metal component can react with water in an exothermic oxidation reaction to the corresponding metal oxide and hydrogen to release energy.
- the water with which the hydroreactive metal component (MK) undergoes an exothermic oxidation reaction can originate exclusively from the aqueous carrier liquid (WT).
- the fluid composition (FZ) underground can also mix with the formation water contained in the underground deposit.
- the exothermic oxidation reaction takes place both with the water from the aqueous carrier liquid (WT) and with formation water.
- Formation water is understood here to mean water that is contained in the underground deposit. This may be water originally contained in the deposit. Formation water is also understood to mean water that has been introduced into the underground deposit through steps of secondary or tertiary mineral oil extraction prior to introducing the flowable composition (FZ).
- the hydroreactive metal component (MK) preferably contains at least one metal selected from the group consisting of aluminum, magnesium and calcium.
- the present invention thus also relates to a flowable composition, which is characterized in that the hydroreactive metal component (MK) contains at least one metal selected from the group consisting of aluminum, magnesium and calcium.
- hydroreactive metal component As a hydroreactive metal component (MK) exactly one metal can be used. It is also possible to use mixtures or alloys of two or more metals.
- the hydroreactive metal component (MK) contains 85% by weight of aluminum, preferably 89.0 to 97.5% by weight of aluminum, in each case based on the total weight of the hydroreactive metal component (MK).
- the present invention thus also provides a flowable composition which is characterized in that the hydroreactive metal component (MK) contains at least 85% by weight of aluminum, based on the total weight of the metal component.
- the solid component (FK) contains only aluminum as the hydroreactive metal component (MK).
- the solid component (FK) contains only magnesium as the hydroreactive metal component (MK).
- the solid component (FK) contains as hydroreactive metal component (MK) an alloy which contains at least aluminum and gallium.
- the present invention thus also relates to a flowable composition (FZ) in which the hydroreactive metal component (MK) is a metal alloy containing aluminum and gallium.
- the subject of the present invention is therefore also a flowable composition (FZ), which is characterized in that the hydroreactive metal component (MK) is a metal alloy containing aluminum and gallium.
- the solid component (FK) contains as the hydroreactive metal component (MK) an alloy containing aluminum, gallium, indium and tin.
- the hydroactive metal component (MK) preferably has the following composition: 89 to 97.5% by weight of aluminum, 1 to 5% by weight of gallium, 1 to 3% by weight of indium and 0.5 to 3% by weight of tin, where the percentages by weight in each case are based on the total weight of the hydroreactive metal component (MK) and the sum of the parts by weight gives 100% by weight.
- the present invention thus also provides a flowable composition (FZ) which is characterized in that the hydroreactive metal component (MK) is a metal alloy which contains 89.0 to 97.5% by weight of aluminum, 1.0 to 5.0 Wt .-% gallium, 1, 0 to 3.0 wt .-% indium and 0.5 to 3.0 wt .-% tin, wherein the percentages by weight in each case based on the total weight of the hydroreactive metal component (MK).
- MK hydroreactive metal component
- the total amount of hydroreactive metal component (MK) which may be contained in the solid component (FK) is generally in the range from 5 to 90% by weight, preferably in the range from 70 to 90% by weight, in each case based on the total weight the solid component (FK).
- the present invention thus also relates to a flowable composition (FZ), which is characterized in that the solid component (FK) contains 5 to 90% by weight of the hydroreactive metal component (MK), based on the total weight of the solid component (FK).
- FZ flowable composition
- the hydroreactive metal components (MK) contained in the solid component (FK) may have an oxide layer (passivation layer). It is also possible to use a hydroreactive metal component (MK) which has no oxide layer (passivation layer).
- the hydroreactive metal component (MK) is enveloped by a water-soluble polymer (P).
- water-soluble polymer (P) is understood to mean both “readily water-soluble” polymers (P) and “sparingly water-soluble” polymers (P)
- water-soluble means that for a solution of the polymer (P) in water 20 ° C 1 to 1000 g of water per g of polymer (P) are required.
- the term "slightly water-soluble” means that for a solution of the polymer (P) in water at 20 ° C 1 to 30 g of water per g of polymer (P) are required.
- the slightly water-soluble polymers (P) according to the invention are water-soluble over the entire pH range.
- the term “poorly water-soluble” includes sparingly soluble, sparingly soluble and practically insoluble substances and means that for a solution of the polymer (P) in water at 20 ° C., more than 30 g to 1000 g of water are required per g of polymer (P)
- For practically insoluble polymers (P) at least 10,000 g of water per g of polymer (P) are required.
- the poorly water-soluble polymers (P) are also those polymers (P) are listed that are not soluble over the full pH range, but show a pH-dependent solubility.
- Suitable readily water-soluble polymers (P) are, for example, water-soluble homo- and copolymers of N-vinylpyrrolidone.
- homopolymers with Fikentscher K values of from 10 to 100, in particular K12, K15, K30 K 60, K90 are suitable.
- the copolymers of N-vinylpyrrolidone are especially suitable copolymers with vinyl acetate, preferably those having a weight ratio of N-vinylpyrrolidone (NVP) to vinyl acetate (VAc) 60:40 to 80:20, in particular according to the Pharm Eur.
- NVP N-vinylpyrrolidone
- VAc vinyl acetate
- the US Pharmacopoeia coproposing copolymer of NVP / VAc in the weight ratio 60:40 are also suitable as slightly water-soluble polymers (P) are polyvinyl alcohols, which are obtained as homopolymers usually by hydrolysis of polyvinyl acetate.
- polymers (P) are graft polymers based on polyethers as the graft base.
- Such graft copolymers can be obtained by radical polymerization of vinyl monomers in the presence of polyethers.
- Suitable vinyl monomers are, for example, N-vinyllactam monomers such as N-vinylpyrrolidone or N-vinylcaprolactam or mixtures thereof.
- vinyl monomers are vinyl ethers or vinyl esters, in particular vinyl acetate.
- the ester groups may also be partially or completely hydrolyzed.
- acrylates or methacrylates are also suitable as comonomers.
- Polyvinyl alcohol-polyethylene glycol graft copolymers or graft copolymers which can be obtained by free radical polymerization of a mixture of polyethylene glycol, N-vinylcaprolactam and / or vinyl acetate are preferred.
- Such graft polymers are commercially available as Kollicoat IR ® or Soluplus ®, BASF available.
- slightly water-soluble polymers are polyalkylene glycols such as polyethylene glycols, ethylene glycol-propylene glycol block copolymers, hydroxyalkylated celluloses such as hydroxypropylmethylcellulose, hydroxypropylcellulose, hydroxyethylcellulose, polysaccharides such as carragenans, pectins, xanthans or alginates.
- polyalkylene glycols such as polyethylene glycols, ethylene glycol-propylene glycol block copolymers, hydroxyalkylated celluloses such as hydroxypropylmethylcellulose, hydroxypropylcellulose, hydroxyethylcellulose, polysaccharides such as carragenans, pectins, xanthans or alginates.
- water sparingly soluble polymers (P) in the context of the invention are either neutral sparingly soluble polymers (P), anionic sparingly soluble polymers (P) or basic sparingly soluble polymers (P).
- Neutral sparingly soluble polymers are understood as meaning those polymers which are sparingly water-soluble or only swellable in water over the entire pH range from 1 to 14.
- Suitable sparingly soluble polymers include, for example: neutral or substantially neutral methacrylate copolymers. These may consist in particular of at least 95, in particular at least 98, preferably at least 99, in particular at least 99, particularly preferably 100% by weight of radically polymerized (meth) acrylate monomers having neutral radicals, in particular C 4 to C 4 -alkyl radicals , Suitable (meth) acrylate monomers with neutral radicals are, for.
- Eudragit NE is a copolymer of 30% by weight of ethyl acrylate and 70% by weight of methyl methacrylate.
- sparingly soluble (meth) acrylate copolymers are, for example, polymers which are soluble or swellable independently of the pH and which are suitable for pharmaceutical coatings.
- the sparingly soluble polymer (P) may be a polymer of 98 to 85 wt .-% C to C 4 alkyl esters of acrylic or methacrylic acid and 2 to 15 wt .-% of (meth) acrylate monomers having a quaternary ammonium group or a mixture be several polymer of this class of substances.
- the sparingly soluble polymer (P) can also be a polymer of 97 to more than 93 wt .-% C to C 4 alkyl esters of acrylic or methacrylic acid and 3 to less than 7 wt .-% of (meth) acrylate monomers with a quaternary Be ammonium group (type Eudragit (R) RS).
- Preferred C 4 to C 4 alkyl esters of acrylic or methacrylic acid are methyl acrylate, ethyl acrylate, butyl acrylate, butyl methacrylate and methyl methacrylate.
- 2-trimethylammoniumethyl methacrylate chloride is particularly preferable.
- An example suitable copolymer contains 65% by weight of methyl methacrylate, 30% by weight of ethyl acrylate and 5% by weight of 2-trimethylammonium ethyl methacrylate chloride (Eudragit RS).
- the sparingly soluble polymer (P) may be a polymer of 93 to 88 wt .-% C to C 4 alkyl esters of acrylic or methacrylic acid and 7 to 12 wt .-% of (meth) acrylate monomers having a quaternary ammonium group (Eudragit type RL).
- a concrete suitable copolymer contains z. B. 60 wt .-% methyl methacrylate, 30 wt .-% ethyl acrylate and 10 wt .-% 2-trimethyl-ammonium methlymethacrylate chloride (Eudragit (R) RL).
- the solid component (FK) may also contain a polyvinyl acetate as sparingly soluble polymer (P).
- Suitable polyvinyl acetates are, for example, the homopolymers of vinyl acetate.
- sparingly soluble polyvinyl acetate copolymers for example water-insoluble copolymers of vinyl acetate and N-vinylpyrrolidone.
- Commercially available suitable polyvinyl acetates are, for example, Kollicoat (R) SR 30D or Kollidon (R) SR.
- sparingly soluble polymers are alkylcelluloses such as ethylcellulose and neutral cellulose esters such as e.g. Cellulose acetate butyrate.
- anionic sparingly soluble polymers can also be used.
- anionic polymers are preferably understood polymers having at least 5%, more preferably 5 to 75% of monomer residues with anionic groups.
- Preferred are anionic (meth) acrylate copolymers.
- suitable commercially available (meth) acrylate copolymers having anionic groups are the Eudragit (R) grades L, L100-55, S and FS.
- Suitable anionic (meth) acrylate copolymers are, for. B. polymers of 25 to 95, wt .-% C to C 4 alkyl esters of acrylic or methacrylic acid and 5 to 75 wt .-% of (meth) acrylate monomers having an anionic group. Depending on the content of anionic groups and the character of the other monomers, corresponding polymers are water-soluble at pH values above pH 5.0 and thus also enterosoluble. As a rule, the proportions mentioned add up to 100% by weight.
- a (meth) acrylate monomer having an anionic group may e.g. As acrylic acid, but preferably be methacrylic acid.
- anionic (meth) acrylate copolymers of 40 to 60, wt .-% methacrylic acid and 60 to 40% by weight of methyl methacrylate or 60 to 40 wt .-% ethyl acrylate.
- EUDRAGIT L is a copolymer of 50% by weight of methyl methacrylate and 50% by weight of methacrylic acid.
- Eudragit L1 00-55 is a copolymer of 50% by weight of ethyl acrylate and 50% by weight of methacrylic acid.
- Eudragit L 30D-55 is a dispersion containing 30% by weight of Eudragit L 100-55.
- anionic (meth) acrylate copolymers of 20 to 40 wt .-% methacrylic acid and 80 to 60 wt .-% methyl methacrylate (type Eudragit (R) S).
- Eudragit FS is a copolymer of 25% by weight, methyl methacrylate, 65% by weight of methyl acrylate and 10% by weight of methacrylic acid.
- Eudragit FS 30 D is a dispersion containing 30% by weight Eudragit (R) FS.
- the copolymers preferably consist essentially exclusively of the monomers methacrylic acid, methyl acrylate and ethyl acrylate in the abovementioned proportions.
- the solid component (FK) according to the invention may contain exactly one polymer (P). It is also possible to use a mixture of two or more polymers (P).
- the solid component (FK) preferably contains at least one of the slightly water-soluble polymers (P) described above.
- the present invention thus also provides a flowable composition (FZ) according to any one of claims 1 to 1 1, characterized in that the solid component (FK) as the water-soluble polymer (P) at least one polymer selected from the group consisting of polyethylene oxide, polypropylene oxide, Polyvinylpyrrolidone, polyvinyl alcohol, polyvinyl acetate.
- the solid component (FK) as the water-soluble polymer (P) at least one polymer selected from the group consisting of polyethylene oxide, polypropylene oxide, Polyvinylpyrrolidone, polyvinyl alcohol, polyvinyl acetate.
- hydroreactive metal component (MK) 1 a oxide layer (passivation layer)
- FIG. 1a The solid component (FK) 10 has a single core 1 made of a hydroreactive metal component (MK).
- the hydroreactive metal component (MK) is coated with a passivation layer 1 a.
- the used as core 1 hydroreactive metal component (MK) is enveloped by a polymer (P) 2.
- the solid component (FK) 10 has a single core 1 of a hydroreactive metal component (MK). In contrast to FIG. 1 a), the hydroreactive metal component (MK) has no passivation layer 1a.
- the hydroreactive metal component (MK) used as core 1 is likewise enveloped by a polymer (P) 2.
- the solid component (FK) 10 contains as core a multiplicity of hydroreactive metal components (MK) 1.
- the hydroreactive metal components (MK) 1 are present in the form of a conglomerate.
- the individual metal components (MK) 1 are partially surrounded by gas-filled gaps 3 and have a passivation layer 1 a).
- the conglomerate is encapsulated with an outer shell of polymer (P) 2.
- FIG. 2b
- the solid component (FK) 10 in FIG. 2b) differs from the solid component (FK) 10 in FIG. 2a) in that the hydroreactive metal components (MK) 1 have no passivation layer 1a.
- the solid component (FK) 10 contains a plurality of hydroreactive metal components (MK) 1 in the form of a dispersion.
- the metal components (MK) 1 have a passivation layer 1a.
- the solid component (FK) 10 is in the form of a dispersion.
- the hydroreactive metal components (MK) 1 form the disperse phase.
- the polymer 2 forms the continuous phase.
- the solid component (FK) 10 in FIG. 3b) differs from the solid component (FK) 10 in FIG. 3a) in that the hydroreactive metal components (MK) 1 have no passivation layer 1a.
- FIG. 4 shows a further embodiment of the solid component (FK) 10 according to FIG. 3b).
- Some hydroreactive metal components (MK) 1 are not completely enveloped by the polymer 2 in FIG.
- the regions of the hydroreactive metal components (MK) 1 which are not enveloped by the polymer 2 have a passivation layer 1 a).
- FIG. 5 shows a further embodiment of the solid component (FK) 10 according to FIG. 3b).
- the solid component (FK) 10 has an outer shell of a further polymer (P) 2a.
- the shape of the solid component (FK) is optional and depends essentially on the method used to produce the solid component (FK).
- the solid components (FK) do not necessarily have to be spherical.
- the shape of the hydroreactive metal component (MK) is also freely selectable and depends essentially on the method with which the hydroreactive metal component (MK) was produced.
- the hydroreactive metal components (MK) do not necessarily have to be spherical.
- the solid component (FK) is suspended in the aqueous carrier liquid (WT).
- the size of the solid component (FK) can also vary within wide limits.
- the size of the solid component (FK) is generally in the range of 0.3 to 10 mm, preferably in the range of 0.5 to 5 mm.
- the solid component (FK) is larger than the used hydroreactive metal component (MK).
- the subject of the present invention is thus also a flowable composition (FZ) characterized in that the solid component (FK) in the aqueous carrier liquid (WT) is in particulate form, wherein the particle size is in the range of 0.3 to 10 mm.
- the solid component (FK) generally has a density in the range from 1 to 5 g / cm 3 , preferably in the range from 1 to 2 g / cm 3 .
- the hydroreactive metal component (MK) is preferably used in particulate form.
- the particle size of the hydroreactive metal component (MK) is generally 20 nm to 1000 ⁇ m, preferably 20 nm to 500 ⁇ m, and particularly preferably 50 nm to 50 ⁇ m.
- the particle size of the hydroreactive metal component (MK) can thus be in the ⁇ range ( ⁇ metal) or in the nm range (n metal).
- the industrial production of the hydroreactive metal component (MK) is known and can be done for example by vibrating mills or roll mills.
- the subject of the present invention is therefore also a flowable composition (FZ), characterized in that the hydroreactive metal component (MK) in the solid component (FK) is in particulate form, wherein the particle size of the hydroreactive metal component (MK) in the range of 25 20 nm is up to 1000 ⁇ .
- FZ flowable composition
- hydroreactive metal components those with a passivation layer or those without a passivation layer can be used.
- Hydroreactive metal components (MK) without a passivation layer are also referred to as active 30 hydroreactive metal components (aMK).
- Hydroreactive metal components (MK) with passivation layer are also referred to as passive hydroreactive metal components (pMK).
- the solid component (FK) contains hydroreactive metal components (MK) with or without a passivation layer can be regulated via the production method.
- the hydroreactive metal components (MK) for example in the presence of atmospheric oxygen, the hydroreactive metal components (MK) usually form a passivation layer.
- MK hydroreactive metal component
- the coating method also depends on the type of solid component (FK) that is to be produced.
- solid components (FK) which, as described in FIG. 1, contain only a single core of a hydroreactive metal component (MK), so-called drum coating systems are suitable.
- MK hydroreactive metal component
- the hydroreactive metal component (MK) is comminuted as described above and subsequently coated in the drum coating plant with a polymer (P).
- the particulate hydroreactive metal components (MK) are used in the form of conglomerates, that is, in the form of an assembly of a plurality of hydroreactive metal components (MK) separated by gas-filled spaces (3).
- the preparation of these conglomerates can be carried out by known methods, for example by compressing the hydroreactive metal components (MK).
- the intermediate space 3 may contain air.
- the gas-filled gap 3 usually contains an inert gas, for example nitrogen.
- an inert gas for example nitrogen.
- the solid component (FK) is used in the form of a dispersion.
- This embodiment is shown by way of example in FIGS. 3 a), 3 b), 4 and 5.
- hydroreactive metal components (MK) are dispersed in the polymer (P).
- the hydroreactive metal components (MK) form the disperse phase and the polymer (P) forms the continuous phase of the dispersion.
- the continuous phase is also referred to as a dispersing agent.
- the disperse phase is also referred to as a dispersed substance or dispersant.
- the present invention thus also provides a flowable composition (FZ), characterized in that the solid component (FK) is a dispersion in which the water-soluble polymer (P) forms the continuous phase and the hydroreactive metal component (MK) forms the disperse phase.
- FZ flowable composition
- the solid component (FK) is a dispersion in which the water-soluble polymer (P) forms the continuous phase and the hydroreactive metal component (MK) forms the disperse phase.
- thermoplastic polymers are preferred.
- the hydroreactive metal components (MK) are first prepared as described above. These are subsequently mixed in a melt of the polymer (P). The mixing can be done for example by an extruder. Subsequently, the polymer melt containing the hydroreactive metal components (MK) in dispersed form is cooled. After cooling, this polymer dispersion (containing the hydroreactive metal component (MK) (MK) as a disperse phase and the polymer (P) as a continuous phase) is comminuted to produce the solid component (FK). This can be done for example by a granulator.
- the polymer melt containing the hydroreactive metal components (MK) in dispersed form can also be processed by sputtering or by drop formation and simultaneous cooling in a column to the solid component / granules.
- the technology for the preparation of the above-described solid components (FK) is described, for example, in EP 2 463 327, to which reference is hereby made.
- the polymer (P) is mixed together with the hydroreactive metal component (MK), for example in an extruder, and subsequently pressed through a perforated plate into a cooling medium by the polymer melt is solid and the solid component (FK) is formed.
- Suitable apparatus and cooling media are also described in EP 2 463 327.
- Suitable polymers may be mentioned here by way of example only Soluplus ®, BASF SE: graft polymer of PEG 6000 / N-vinylcaprolactam / vinyl acetate, average molecular weight (Mw) determined by gel permeation 90000 -140 000 g / mol; Kollidon ® VA 64, BASF SE, a copolymer of N-vinylpyrrolidone and vinyl acetate in a weight ratio of 60:40, referred to in the pharmacopoeias as "copovidone”; Kollidon ® SR: co-processed mixture of polyvinyl acetate, polyvinyl pyrrolidone K30 (Povidone according Pharm Eur or USP..), Sodium lauryl sulfate and silica in a weight ratio of 80/19 / 0.8 / 0.2; PEG 1500: polyethylene glycol, MW 1500 g / mol; PEG 6000: Polyethylene
- Suitable apparatuses include, by way of example, rotating twin-screw extruders ZSK 25 (Werner & Pfleiderer) with a metering device and a melt pump; Underwater granulator (GALA-LPU, Gala, Xanten) with a heated perforated plate with a bore diameter of 3.2 mm. Knife: 5-cutting, speed 800-2000 rpm; Centrifuge for separation of the cooling medium of granules (grid: 1 .9 mm speed 1500 rpm) mentioned.
- White oil W1 18 (Fuchs Petrolub), which has a viscosity of 16 mm 2 / s at 40 ° C., measured according to DIN N 51562, is mentioned as suitable cooling media.
- FIGS. 3b), 4 and 5 show, by way of example, solid components (FK) which contain active hydroreactive metal component (aMK) in dispersed form.
- the passive hydroreactive metal components (pMK) obtained.
- FIG. 3a) shows by way of example a solid component (FK) which contains passive hydroreactive metal component (pMK) in dispersed form.
- these subregions can be enveloped by a further polymer (P) (2a).
- the solid component (FK) in which subregions of the active hydroreactive metal components (aMK) are not enveloped by polymer (P) is enveloped by a further polymer layer (2a).
- This further polymer layer (2a) may be a polymer (P) other than the continuous phase polymer (the dispersing agent). It is also possible to use as a further polymer (2a) a polymer (P) which is identical to the polymer of the continuous phase (2).
- solid components FK
- active hydroreactive metal components aMK
- MK hydroreactive metal components
- the present invention thus also provides a flowable composition (FZ), characterized in that the solid component (FK) contains an active hydroreactive metal component (aMK) which has no passivation layer.
- FZ flowable composition
- the solid component (FK) contains an active hydroreactive metal component (aMK) which has no passivation layer.
- the hydroreactive metal components (MK) present in the solid component (FK) it is not absolutely necessary for all the hydroreactive metal components (MK) present in the solid component (FK) to be present without a passivation layer. It is generally sufficient if at least 50 wt .-%, preferably at least 80 wt .-% and particularly preferably at least 90 wt .-% of the hydroreactive metal components in the form of active hydroreactive metal components (aMK) are present, each based on the total weight the hydroreactive metal component (MK) contained in the solid component (FK).
- These solid components (FK) have the advantage that after dissolution or decomposition of the polymer (P), the exothermic oxidation reaction of the active hydroreactive metal component (aMK) is used directly. In this way, by choosing the amount or layer thickness of the polymer (P) in the solid component (FK), the time until the onset of the exothermic oxidation reaction can be regulated.
- the time between contacting the solid component (FK) with water and starting the exothermic oxidation reaction may be several minutes to a few days.
- the period of time between contacting and employing the exothermic oxidation reaction is 2 hours to 10 days, preferably 2 hours to 1 day, more preferably 2 hours to 4 hours.
- the time required to dissolve the polymer (P) also depends on the temperature. At higher temperatures, the polymer (P) dissolves faster and the time to onset of the exothermic oxidation reaction is typically shorter.
- the time until onset of the exothermic oxidation reaction can be controlled by the type and amount of the water-soluble polymer (P) used. For a longer period of time until the onset of the exothermic oxidation reaction, polymers (P) which have a lower water solubility are generally used.
- the flowable composition (FZ) generally contains 5 to 70 wt .-% of the solid component (FK) and 30 to 70 wt .-% of the aqueous carrier liquid (WT), and optionally 0 to 65 wt .-% of a proppant (SM) , in each case based on the total weight of the flowable composition (FZ), the sum of the percentages by weight giving 100% by weight. This composition is preferred if the flowable composition (FZ) is used as a fracking liquid.
- the subject matter of the present invention is therefore also a flowable composition (FZ), characterized in that the flowable composition (FZ) 5 to 70 wt .-% of the solid component (FK), 30 to 70 wt .-% of the aqueous carrier liquid (WT) and 0 to 65 wt .-% of a proppant (SM), in each case based on the total weight of the flowable composition (FZ).
- FZ flowable composition
- the present invention further relates to the use of a flowable composition (FZ) for hydraulic fraying of underground deposits.
- the flowable composition (FZ) is pressed with a pressure in the subterranean formation, which is sufficient to bring about a rupture event in the surrounding rock.
- proppant for example, sand or proppant can be used.
- the proppant (SM) preferably has a density similar to the solid component (FK), for example a density in the range of 1 to 5 g / cm 3 , preferably in the range of 1 to 3 g / cm 3 .
- the particle size of the proppant is generally in the range of 0.3 to 10 mm.
- the flowable composition (FZ) according to the invention can be used for the thermal treatment of cavities in underground deposits.
- the underground deposits are preferably oil and / or natural gas deposits.
- the present invention thus also relates to a process for thermal treatment of an underground deposit, in which at least one well is drilled, comprising the process steps a) conveying a fluid raw material from the underground deposit by at least one bore b) adjusting the promotion of the fluid raw material from the c) injecting the flowable composition (FZ) of the invention through at least one well into the underground deposit, d) inserting a quiescent phase in which the polymer (P) is dissolved and the exothermic oxidation reaction of the hydroreactive metal component (MK) with
- the present invention also relates to a process for the thermal treatment of an underground oil reservoir into which at least one well has been drilled, comprising the process steps of a) conveying oil and / or natural gas from the underground oil reservoir through at least one well b) adjusting the production of oil and / or natural gas from the underground oil deposit, c) injecting the flowable composition (FZ) according to the invention through at least one well into the underground oil reservoir, d) introducing a quiescent phase in which the polymer (P) is dissolved and the exothermic oxidation reaction of the hydroreactive metal component (MK) with water takes place; e) resuming the production of oil and / or natural gas from the subterranean mineral oil deposit through at least one well.
- the above statements and preferences for flowable composition (FZ) apply accordingly.
- Process step a) is generally carried out until a decrease in the delivery rate of the fluid raw material, preferably crude oil and / or natural gas, is detected.
- the decrease in the delivery rate can be caused for example by highly viscous substances such as paraffins, high-viscosity petroleum oils or bitumen (asphaltenes), which reduced the hydrodynamic communication between productive layer and bore.
- the actual thermal treatment thus takes place in process step c) and d).
- the heat generation in combination with the resulting gases, the deposits in step d) are removed and the hydrodynamic communication is improved. Due to the thermal treatment in process step d), new cracks and fissures can also form in the underground reservoir.
- the present invention thus also relates to the use of the flowable composition (FZ) according to the invention for the thermal treatment of underground deposits.
- the thermal treatment removes the above-described deposits of highly viscous substances, moreover, new cracks and fissures can form in the underground deposit.
- the present invention thus also relates to the use of the flowable composition (FZ) according to the invention for the removal of highly viscous deposits from underground deposits, preferably from highly viscous deposits selected from the group consisting of paraffins, high-viscosity petroleum oils and bitumen.
- FZ flowable composition
- the present invention furthermore relates to the use of the flowable composition (FZ) according to the invention for fracturing the surrounding rock of a well in an underground deposit, preferably in a natural gas or crude oil deposit.
- FZ flowable composition
- fracturing is meant the occurrence of a fracture event in the surrounding rock of the well in the subterranean formation caused by the exothermic oxidation reaction of the hydroreactive metal component (MK) with water Rock surrounding rock in the subterranean formation.
- the flowable composition (FZ) contains a solid component (FK) containing as hydroreactive metal component (MK) magnesium, preferably at least 50 wt .-% magnesium, more preferably at least 90 wt .-% magnesium and particularly preferably at least 99 wt. % Contains magnesium, in each case based on the total weight of the hydroreactive metal component (MK).
- the flowable composition (FZ) can be used as a chemical igniter to ignite explosives. Methods are described in the prior art in which flowable explosives are injected through boreholes into underground reservoirs. Ignition of the explosives creates new cracks, fissures and cavities in the underground reservoir. The ignition of the explosive is usually carried out by an electric or chemical detonator.
- the present invention thus also relates to the use of the flowable composition (FZ) according to the invention as an igniter, preferably as an igniter for flowable explosives, particularly preferably for flowable explosives which have been injected into underground reservoirs.
- FZ flowable composition
- the flowable composition (FZ) as an igniter is an aqueous carrier liquid (WT) is an aqueous Hydrochloric acid solution used, having a hydrochloric acid content in the range of 1 to 38% by volume, preferably in the range of 10 to 25 vol .-%, particularly preferably in the range of 15 to 20 vol .-% and the solid component (FK) contains as hydroreactive Metal component (MK) magnesium, preferably at least 50 wt .-% magnesium, more preferably at least 90 wt .-% magnesium and particularly preferably at least 99 wt .-% magnesium, in each case based on the total weight of the hydroreactive metal component (MK).
- MK hydroreactive Metal component
- oil can only be pumped at high temperatures and pressures.
- a horizontal production well is drilled into the oil-bearing geological layer and subsequently perforated.
- an injection well is drilled into the heavy oil deposit.
- the flowable composition (FZ) is introduced into the heavy oil deposit.
- the flowable composition (FZ) is pressed in at a pressure sufficient to form gaps and cracks in the area surrounding the injection well, which run vertically to the injection well.
- the flowable composition (FZ) is thus used as a fracking liquid.
- the flowable composition (FZ) contains, as aqueous carrier liquid (WT), a 20% strength by weight aqueous solution of ammonium nitrate in water and is triturated with a polyacrylamide (viscosity 400 cP).
- WT aqueous carrier liquid
- polyacrylamide viscosity 400 cP
- the flowable composition contains a dispersion of aluminum in polyvinylpyrrolidone (80% by weight of aluminum based on the total weight of FK).
- flowable composition (FZ) contains 300 kg of proppant and 100 kg of solid component (FK) (balance aqueous carrier liquid (WT)). 700 m 3 flowable composition (FZ) are pressed through the injection bore at a pressure of 800 atm to produce the fracking gap.
- FK solid component
- WT balance aqueous carrier liquid
- the time to dissolve the polymer (P) is about 6 hours. Thereafter, the exothermic oxidation reaction of the aluminum and the decomposition of the ammonium nitrate starts with evolution of heat and gas. This reaction takes place within a few minutes. Immediately after the end of the thermal oxidation reaction, air is injected through the injection well into heated fracture gaps to initiate or maintain in-situ combustion. The ignition surface corresponds to the surface of the fracking gaps. As a result, a wide combustion front is achieved. Before the combustion front, the heavy oil is modified and conventionally extracted.
- the process can also be used for the in-situ combustion of shale oil or coal deposits.
- Tight gas deposits are deposits in which natural gas is stored in small, poorly interconnected cavities between rock formations. Usually, such deposits are opened by classical hydraulic fracturing. Due to the normally low gas pressure of tight gas deposits, the normal treatment processes described in the prior art lead to contamination of the reservoir by the hydraulic fracturing fluids used for hydraulic fracturing, which has a negative effect on the gas production rates.
- a horizontal well is drilled to develop a tight gas deposit, which is stored at a depth of 3 km and has a deposit temperature of 105 ° C.
- the length of the horizontal borehole section is 1, 5 km.
- the horizontal borehole section is repeatedly scanned, the Distance between the fracking columns is about 300 m.
- a flowable composition (FZ) which contains water which has been gelled with polyacrylamide as the aqueous carrier liquid (WT).
- the flowable composition (FZ) further contains ceramic proppant and a solid component (FK) containing aluminum dispersed in a polyvinylpyrrolidone polymer (90% by weight of aluminum based on the total weight of FK). From 400 to 700 m 3 of the aqueous carrier liquid (WT), 100 to 220 t of proppant and 10 to 20 t of the solid component (FK) are used per fractured section.
- the bore After pressing in the flowable composition (FZ) and the hydraulically induced formation of crevices and tears, the bore remains under pressure to prevent the flowable composition (FZ) from flowing out of the hydraulically induced fracking gaps. After 2 to 6 hours, a pressure increase in the hole is registered. This pressure increase indicates the beginning of the oxidation reaction between water and aluminum in the hydraulically induced fracking gaps. Due to the exothermic oxidation reaction, the temperature increases up to 900 ° C, whereby the water contained in the aqueous carrier liquid (WT) is evaporated or decomposed. At the same time, hydrogen is formed, which originates from the oxidation reaction between aluminum and water.
- WT aqueous carrier liquid
- micro-gaps Due to the sudden rise in temperature and pressure, numerous additional micro-gaps are formed in the vicinity of the hydraulically induced fracking gaps. The formation of these micro-gaps (gas-fracturing) is supported by the temperature shock in the rock. At the same time, the aluminum in the fracture gaps forms aluminum oxide in the form of a highly porous slag, which is very permeable to gases.
- gas production from the tight gas deposit is continued by conventional methods.
- the gas delivery rate increases by 20 to 200% compared to conventional methods, which are based only on "hydraulic fracturing".
- the non-toxic alumina is formed as the sole by-product.
- the chemical additives used in conventional hydraulic fracturing such as, for example, gel breakers, biocides or clay stabilizers, can be dispensed with.
- the inventive method is thus ecologically safe.
- This composition (Z) can react exothermically.
- the ammonium nitrate acts as an oxidizing agent, urea and glycerol act as a fuel (reducing agent).
- the ignition temperature of this composition (Z) is about 500 ° C. To ensure a safe ignition of this composition (Z), temperatures of about 600 ° C are necessary.
- composition (Z) (not according to the invention) described above into the perforated borehole section, it is closed with a packer.
- the flowable composition (FZ) according to the invention is introduced as an igniter into the perforated borehole section filled with the composition (Z).
- water is used as the flowable composition (FZ) as aqueous carrier liquid (WT) and aluminum dispersed in polyvinylpyrrolidone as solid component (FK) (90% by weight of aluminum based on the total weight of FK).
- the flowable composition (FZ) contains 35% by weight of the solid component (FK), based on the total weight of the flowable composition (FZ).
- the flowable composition (FZ) is used here to ignite the composition (Z).
- the volume of the flowable composition (FZ) is 2.5% of the volume of the composition (Z), with which the perforated area of the production well was filled.
- the dissolution of the polymer (P) (polyvinylpyrrolidone) requires a period of 3 to 6 hours. Subsequently, the exothermic reaction between aluminum and the water contained in the carrier liquid (WT) begins.
- composition (Z) which contains ammonium nitrate, urea, glycerol, glucan and water, is ignited.
- This composition (Z) reacts within 10 to 20 minutes, with the reaction between ammonium nitrate with urea and glycerine more heat is released. This destroys the deposits in the perforated area of the production well. Subsequently, the well is rinsed with water to discharge the detached sediment residue from the well.
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Inorganic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Crystallography & Structural Chemistry (AREA)
- Lubricants (AREA)
- Catalysts (AREA)
- Medicinal Preparation (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/783,676 US20160084053A1 (en) | 2013-04-10 | 2014-04-09 | Flowable Composition For The Thermal Treatment Of Cavities |
CA2908784A CA2908784A1 (en) | 2013-04-10 | 2014-04-09 | Flowable composition (fz) for the thermal treatment of cavities |
EP14715959.4A EP2984146A1 (de) | 2013-04-10 | 2014-04-09 | Fliessfähige zusammensetzung zur thermischen behandlung von bohrlöchern |
RU2015147998A RU2015147998A (ru) | 2013-04-10 | 2014-04-09 | Текучий состав для термической обработки полостей |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13163098 | 2013-04-10 | ||
EP13163098.0 | 2013-04-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014167011A1 true WO2014167011A1 (de) | 2014-10-16 |
Family
ID=48083020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2014/057178 WO2014167011A1 (de) | 2013-04-10 | 2014-04-09 | Fliessfähige zusammensetzung zur thermischen behandlung von bohrlöchern |
Country Status (5)
Country | Link |
---|---|
US (1) | US20160084053A1 (de) |
EP (1) | EP2984146A1 (de) |
CA (1) | CA2908784A1 (de) |
RU (1) | RU2015147998A (de) |
WO (1) | WO2014167011A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9556719B1 (en) * | 2015-09-10 | 2017-01-31 | Don P. Griffin | Methods for recovering hydrocarbons from shale using thermally-induced microfractures |
CA3191024A1 (en) * | 2020-08-17 | 2022-02-24 | Xpand Oil & Gas Solutions, Llc | Sand consolidation compositions and methods of use |
CN112852516B (zh) * | 2021-01-11 | 2022-04-08 | 中国科学院力学研究所 | 一种水反应金属燃料配方及其使用方法 |
GB2612622A (en) * | 2021-11-05 | 2023-05-10 | Bisn Tec Ltd | A chemical reaction heat source composition for use in downhole operations and associated apparatus and methods |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2218306A (en) * | 1938-06-03 | 1940-10-15 | Austerman Karl | Method of treating oil wells |
US2672201A (en) | 1950-08-19 | 1954-03-16 | Pure Oil Co | Increasing production of oil wells |
US2799342A (en) * | 1954-07-30 | 1957-07-16 | California Research Corp | Process for treating oil well formations |
US3270815A (en) * | 1963-09-11 | 1966-09-06 | Dow Chemical Co | Combination hydraulic-explosive earth formation fracturing process |
US4085799A (en) * | 1976-11-18 | 1978-04-25 | Texaco Inc. | Oil recovery process by in situ emulsification |
RU2401381C1 (ru) | 2009-02-25 | 2010-10-10 | Закрытое акционерное общество "ИНФРЭК" | Способ обработки пласта |
US7946342B1 (en) | 2009-04-30 | 2011-05-24 | The United States Of America As Represented By The United States Department Of Energy | In situ generation of steam and alkaline surfactant for enhanced oil recovery using an exothermic water reactant (EWR) |
EP2463327A2 (de) | 2010-12-10 | 2012-06-13 | Basf Se | Verfahren zur herstellung von granulaten, enthaltend mindestens eine wasserlösliche komponente |
WO2014049021A1 (de) | 2012-09-27 | 2014-04-03 | Wintershall Holding GmbH | Verfahren zur förderung von erdgas und erdgaskondensat aus unterirdischen gaskondensat-lagerstätten sowie fliessfähige zusammensetzungen (fz) zum einsatz in diesem verfahren |
-
2014
- 2014-04-09 RU RU2015147998A patent/RU2015147998A/ru not_active Application Discontinuation
- 2014-04-09 US US14/783,676 patent/US20160084053A1/en not_active Abandoned
- 2014-04-09 EP EP14715959.4A patent/EP2984146A1/de not_active Withdrawn
- 2014-04-09 CA CA2908784A patent/CA2908784A1/en not_active Abandoned
- 2014-04-09 WO PCT/EP2014/057178 patent/WO2014167011A1/de active Application Filing
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2218306A (en) * | 1938-06-03 | 1940-10-15 | Austerman Karl | Method of treating oil wells |
US2672201A (en) | 1950-08-19 | 1954-03-16 | Pure Oil Co | Increasing production of oil wells |
US2799342A (en) * | 1954-07-30 | 1957-07-16 | California Research Corp | Process for treating oil well formations |
US3270815A (en) * | 1963-09-11 | 1966-09-06 | Dow Chemical Co | Combination hydraulic-explosive earth formation fracturing process |
US4085799A (en) * | 1976-11-18 | 1978-04-25 | Texaco Inc. | Oil recovery process by in situ emulsification |
RU2401381C1 (ru) | 2009-02-25 | 2010-10-10 | Закрытое акционерное общество "ИНФРЭК" | Способ обработки пласта |
US7946342B1 (en) | 2009-04-30 | 2011-05-24 | The United States Of America As Represented By The United States Department Of Energy | In situ generation of steam and alkaline surfactant for enhanced oil recovery using an exothermic water reactant (EWR) |
EP2463327A2 (de) | 2010-12-10 | 2012-06-13 | Basf Se | Verfahren zur herstellung von granulaten, enthaltend mindestens eine wasserlösliche komponente |
WO2014049021A1 (de) | 2012-09-27 | 2014-04-03 | Wintershall Holding GmbH | Verfahren zur förderung von erdgas und erdgaskondensat aus unterirdischen gaskondensat-lagerstätten sowie fliessfähige zusammensetzungen (fz) zum einsatz in diesem verfahren |
Also Published As
Publication number | Publication date |
---|---|
US20160084053A1 (en) | 2016-03-24 |
RU2015147998A (ru) | 2017-05-11 |
EP2984146A1 (de) | 2016-02-17 |
CA2908784A1 (en) | 2014-10-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE112007002575T5 (de) | Mit abbaubarem Material unterstützte Umleitung | |
DE112015000858T5 (de) | Verfahren zum Bereitstellen von mehreren Rissen in einer Formation | |
EP0577931A1 (de) | Verfahren zur Verringerung oder vollständingen Einstellung des Wasserzuflusses bei Bohrungen zur Gewinnung von Öl und/oder Kohlenwasserstoffgas | |
DE112007003060T5 (de) | Differentielle Filter zum Aufhalten von Wasser während der Ölförderung | |
US20130056215A1 (en) | Disintegrative Particles to Release Agglomeration Agent for Water Shut-Off Downhole | |
MXPA02009684A (es) | Reduccion de viscosidad de fluidos basados en tensioactivos viscoelasticos. | |
WO2014049018A1 (de) | Fliessfähige zusammensetzung, verfahren zur herstellung der fliessfähigen zusammensetzung sowie verfahren zum fracen einer unterirdischen formation unter einsatz der fliessfähigen zusammensetzung | |
DE2920539A1 (de) | Verfahren zur behandlung unterirdischer formationen, die ein bohrloch umgeben | |
NO20161566A1 (en) | Smart lcm for stregthening earthen formations | |
EP2984146A1 (de) | Fliessfähige zusammensetzung zur thermischen behandlung von bohrlöchern | |
EP2984148A1 (de) | Verfahren zum hydraulischen fracken einer unterirdischen formation unter verwendung von aluminiumpartikeln | |
DE4233105A1 (de) | Verfahren zum begrenzen eines nach unten gerichteten wachsens induzierter risse in einer unterirdischen formation | |
EP2581432A1 (de) | Verbesserte Kohlenwasserstoffwiedergewinnung | |
RU2401381C1 (ru) | Способ обработки пласта | |
EP2900792A1 (de) | Verfahren zur förderung von erdgas und erdgaskondensat aus unterirdischen gaskondensat-lagerstätten | |
CN107620580A (zh) | 一种页岩气长水平井连续油管钻塞遇卡解卡方法 | |
EP2900787A1 (de) | Verfahren zur förderung von erdgas und erdgaskondensat aus unterirdischen gaskondensat-lagerstätten sowie fliessfähige zusammensetzungen (fz) zum einsatz in diesem verfahren | |
EP2464707A1 (de) | Organische salze zur reduzierung von gesteinspermeabilitäten | |
WO2015180992A1 (de) | Verfahren zur thermischen behandlung einer unterirdischen erdöllagerstätte | |
EP2900791A1 (de) | FLIEßFÄHIGE WÄSSRIGE ZUSAMMENSETZUNGEN UND VERFAHREN ZUR STEIGERUNG DER FÖRDERRATE VON ERDÖL UND/ODER ERDGAS AUS EINER UNTERIRDISCHEN LAGERSTÄTTE, DIE ERDÖL UND/ODER ERDGAS ENTHÄLT | |
WO2008000362A1 (de) | Verwendung von methacrylat-derivaten zur verdickung salzhaltiger medien | |
WO2014167013A1 (de) | Verfahren zum hydraulischen fracken einer unterirdischen formation unter verwendung von harnstoff | |
WO2015132240A1 (de) | Wasserfreies verfahren zum hydraulischen fracken einer unterirdischen formation | |
EP2559844B1 (de) | Verfahren zur förderung von viskosem erdöl aus unterirdischen lagerstätten | |
EP2906781A1 (de) | Verfahren zum gerichteten fracen einer unterirdischen formation, in die mindestens eine abgelenkte bohrung abgeteuft ist |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14715959 Country of ref document: EP Kind code of ref document: A1 |
|
DPE1 | Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101) | ||
ENP | Entry into the national phase |
Ref document number: 2908784 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14783676 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2014715959 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2015147998 Country of ref document: RU Kind code of ref document: A |