CN115043977B - Composition, preparation and application of aluminate cement zwitterionic polymer retarder for well cementation - Google Patents
Composition, preparation and application of aluminate cement zwitterionic polymer retarder for well cementation Download PDFInfo
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- CN115043977B CN115043977B CN202210717771.7A CN202210717771A CN115043977B CN 115043977 B CN115043977 B CN 115043977B CN 202210717771 A CN202210717771 A CN 202210717771A CN 115043977 B CN115043977 B CN 115043977B
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- aluminate cement
- zwitterionic polymer
- well cementation
- polymer retarder
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- 239000004568 cement Substances 0.000 title claims abstract description 99
- 150000004645 aluminates Chemical class 0.000 title claims abstract description 62
- 229920000642 polymer Polymers 0.000 title claims abstract description 48
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000000203 mixture Substances 0.000 title abstract description 14
- 239000000178 monomer Substances 0.000 claims abstract description 40
- 125000002091 cationic group Chemical group 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 15
- XFTALRAZSCGSKN-UHFFFAOYSA-M sodium;4-ethenylbenzenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C1=CC=C(C=C)C=C1 XFTALRAZSCGSKN-UHFFFAOYSA-M 0.000 claims abstract description 15
- XHZPRMZZQOIPDS-UHFFFAOYSA-N 2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(C)(C)NC(=O)C=C XHZPRMZZQOIPDS-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims description 38
- 239000003999 initiator Substances 0.000 claims description 25
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- 238000003756 stirring Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 14
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 12
- VZMJQFZZUNSSNA-UHFFFAOYSA-N 2-methylpropane-1-sulfonic acid prop-2-en-1-amine Chemical compound NCC=C.CC(C)CS(O)(=O)=O VZMJQFZZUNSSNA-UHFFFAOYSA-N 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 9
- 229910021641 deionized water Inorganic materials 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 239000007800 oxidant agent Substances 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 239000013049 sediment Substances 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical group [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 4
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical group [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 235000010265 sodium sulphite Nutrition 0.000 claims description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims 3
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims 3
- 239000011976 maleic acid Substances 0.000 claims 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims 3
- 229920000536 2-Acrylamido-2-methylpropane sulfonic acid Polymers 0.000 claims 1
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 claims 1
- 229910000342 sodium bisulfate Inorganic materials 0.000 claims 1
- 230000008719 thickening Effects 0.000 abstract description 29
- 239000000470 constituent Substances 0.000 abstract description 18
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 abstract description 12
- 238000010276 construction Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 238000001879 gelation Methods 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 19
- MNCGMVDMOKPCSQ-UHFFFAOYSA-M sodium;2-phenylethenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C=CC1=CC=CC=C1 MNCGMVDMOKPCSQ-UHFFFAOYSA-M 0.000 description 14
- 239000002002 slurry Substances 0.000 description 12
- 230000000979 retarding effect Effects 0.000 description 11
- 230000015572 biosynthetic process Effects 0.000 description 10
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 9
- 239000002245 particle Substances 0.000 description 9
- 238000003786 synthesis reaction Methods 0.000 description 9
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 8
- 239000004327 boric acid Substances 0.000 description 8
- 235000010338 boric acid Nutrition 0.000 description 8
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 7
- 230000008901 benefit Effects 0.000 description 7
- 238000006703 hydration reaction Methods 0.000 description 7
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 230000036571 hydration Effects 0.000 description 6
- 239000004289 sodium hydrogen sulphite Substances 0.000 description 6
- 125000000217 alkyl group Chemical group 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000004575 stone Substances 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 4
- 239000003129 oil well Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 3
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 150000001735 carboxylic acids Chemical class 0.000 description 3
- 230000005465 channeling Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000008103 glucose Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 3
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- OWXJKYNZGFSVRC-NSCUHMNNSA-N (e)-1-chloroprop-1-ene Chemical compound C\C=C\Cl OWXJKYNZGFSVRC-NSCUHMNNSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 2
- 229930006000 Sucrose Natural products 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- -1 alkyl tertiary amine Chemical class 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 229910021538 borax Inorganic materials 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 235000010339 sodium tetraborate Nutrition 0.000 description 2
- 239000005720 sucrose Substances 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 2
- DZSVIVLGBJKQAP-UHFFFAOYSA-N 1-(2-methyl-5-propan-2-ylcyclohex-2-en-1-yl)propan-1-one Chemical compound CCC(=O)C1CC(C(C)C)CC=C1C DZSVIVLGBJKQAP-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229920005551 calcium lignosulfonate Polymers 0.000 description 1
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000013035 low temperature curing Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 235000007686 potassium Nutrition 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005956 quaternization reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000003469 silicate cement Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- 229920005552 sodium lignosulfonate Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000003335 steric effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/58—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
- C08F220/585—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine and containing other heteroatoms, e.g. 2-acrylamido-2-methylpropane sulfonic acid [AMPS]
-
- 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
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/46—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
- C09K8/467—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement containing additives for specific purposes
Abstract
The invention relates to a composition, preparation and application of an aluminate cement zwitterionic polymer retarder for well cementation. The amphoteric polymer retarder synthetic monomers are: 2-acrylamido-2-methylpropanesulfonic Acid (AMPS), maleic Acid (MA), sodium p-styrenesulfonate (SSS), cationic monomers. The zwitterionic polymer retarder contains a constituent unit A represented by formula 1, a constituent unit B represented by formula 2, a constituent unit C represented by formula 3, and a constituent unit D represented by formula 4. The zwitterionic polymer retarder disclosed by the invention can obviously prolong the thickening time of aluminate cement paste, has normal consistency change in the thickening process, does not generate abnormal gelation phenomenon, has obvious right-angle thickening phenomenon, can ensure the well cementation construction time and safety, and effectively solves the problems of difficult adjustment, unstable consistency change, high construction risk and the like of the aluminate cement well cementation construction thickening time in the prior art.
Description
Technical Field
The invention relates to an aluminate cement zwitterionic polymer retarder for well cementation, which has very good retarding effect on aluminate cement, has obvious right-angle thickening phenomenon, can avoid the problems of low-temperature super retarding, abnormal gelation and the like while ensuring sufficient thickening time, has no adverse effect on other excellent performances of the aluminate cement, provides guarantee for the well cementation construction safety of the aluminate cement, and promotes the large-scale use of the aluminate cement in the field of high-temperature-resistant well cementation.
Background
In recent years, special cement-aluminate cement is used in the field of well cementation by virtue of the advantages of high strength, excellent early strength, high temperature resistance, corrosion resistance and the like, and particularly in a thick oil thermal production well, the advantages of the aluminate cement can be fully exerted.
Although the aluminate cement has the characteristics of early strength, high temperature resistance and the like, is widely applied to the fields of extreme rescue, relief work, military construction and the like, the defect of the aluminate cement is not negligible: the later strength is seriously degraded, the hydration speed is extremely high, and the like; for the problem of serious strength decay, the special modified external admixture is mixed into the aluminate cement in proportion, however, the original hydration speed of the aluminate cement is very high, the thickening time is further reduced along with the addition of the external admixture, and the existing retarder such as boric acid, citric acid and the like cannot play a remarkable retarding role, so that the short thickening time is the most important reason for limiting the mass use of the aluminate cement in the well cementation operation; because the thickening time is short, enough well cementation construction time is not needed, construction safety accidents can be caused, meanwhile, cement slurry pumped into the sleeves does not reach a designated area, the consistency is increased, a space cannot be completely and tightly filled, hidden danger is left for the occurrence of well cementation accidents such as channeling and the like, the problem that the thickening time of aluminate cement is too short can be successfully solved, and whether the aluminate cement can be used in engineering is determined.
The aluminate cement retarder for cementing the thickened oil thermal recovery well in the current prior art is disclosed as an invention patent with publication number of CN102994058A and name of 'high temperature resistant non-silicate cement slurry system for cementing the thickened oil thermal recovery well', and the cement slurry system disclosed by the patent consists of the following components in percentage by mass: 100 parts of aluminate cement, 1.0-4.0 parts of polyvinyl alcohol, hydrolyzed polyacrylonitrile or carboxymethyl cellulose, 1.0-4.0 parts of melamine formaldehyde resin, calcium lignosulfonate, sodium lignosulfonate or sodium hexametaphosphate, 0.5-3.0 parts of gypsum, limestone, boric acid, sodium borate or a mixture thereof, 60-120 parts of water and 15-80 parts of slag or fly ash; the cement system adopts gypsum, limestone, boric acid and sodium borate as retarder, and is maintained at 50 ℃ under normal pressure, and the thickening time is up to about 2 hours at the longest, so that the normal well cementation requirement can not be met.
The retarder suitable for aluminate cement in the current prior art, such as the authorized publication number CN108585583B, comprises the following components: 2-propenyl amido-2-methylpropanesulfonic Acid (AMPS), unsaturated carboxylic acid, boric acid and glucose, wherein an initiator is ammonium persulfate, potassium persulfate or sodium hydroxide; the preparation method comprises the following steps: placing AMPS, unsaturated carboxylic acid, boric acid and glucose into a reaction kettle according to mass percent, adding deionized water, uniformly stirring, keeping the stirring rate of 120r/min, heating to 60-75 ℃, charging nitrogen or argon to remove air, and finally adding an initiator solution to keep the reaction, wherein the mass ratio of the total mass of AMPS, unsaturated carboxylic acid, boric acid and glucose to the deionized water is 1:1-1:2; the common thickening time of the retarder in the patent is not more than 200min, and the retarder is only applied to aluminate cement with lower strength and has no value for practical application.
Disclosure of Invention
The composition, the preparation and the application of the zwitterionic polymer retarder for the well cementation are shown, the hydration speed is delayed to the greatest extent while the good strength stability of the aluminate cement is ensured, the thickening time is increased, the zwitterionic polymer retarder not only can optimize the right-angle thickening performance of the cement paste, but also can avoid the phenomenon of super retarding in a low-temperature environment, has no great interference influence on other performances of an aluminate cement paste system, and can solve the technical bottleneck for preventing the aluminate cement from well cementation.
In order to perfectly realize the aim of the invention, the technical scheme of the invention is as follows:
the constituent monomers of the aluminate cement zwitterionic polymer retarder for well cementation are as follows: 2-acrylamido-2-methylpropanesulfonic Acid (AMPS), maleic Acid (MA), sodium p-styrenesulfonate (SSS), cationic monomers.
The mass ratio of the synthetic monomers is as follows: 45-60 parts of 2-propenyl amide-2-methylpropanesulfonic Acid (AMPS), 10-30 parts of Maleic Acid (MA), 5.0-15 parts of sodium p-styrenesulfonate (SSS) and 20-40 parts of cationic monomers.
The synthesis process of the zwitterionic polymer retarder is as follows: firstly, removing oxygen in a three-neck flask with an abrasive mouth of a reaction container, adding 10-30 parts of Maleic Acid (MA) into 180-250 parts of deionized water, stirring and mixing in a stirrer, weighing 45-60 parts of 2-propenyl amide-2-methylpropanesulfonic Acid (AMPS) and 5.0-15 parts of sodium p-styrenesulfonate (SSS), adding into the stirrer, mixing and stirring to obtain a mixed reaction solution, and pouring all the mixed reaction solution into the three-neck flask with the abrasive mouth; leveling the pH value of the reaction solution to 4-5 by using NaOH solution, keeping stirring, and rotating at 200-500 rpm until no sediment exists; preparing 20-40 parts of cationic monomer, and quickly dripping and mixing by using a dropper when the state of the solution in the beaker is stable; and finally preparing an initiator solution, wherein the initiator solution is required to be dripped into the ground three-necked flask at a dripping rate of 5-10ml/min, the reaction temperature is kept at 50-60 ℃, and the reaction is stirred for 8-10h, so that the zwitterionic polymer retarder can be obtained.
The zwitterionic polymer retarder comprises a constituent unit A shown in formula 1, a constituent unit B shown in formula 2, a constituent unit C shown in formula 3 and a constituent unit D shown in formula 4.
R in the constituent unit A, the constituent unit B, the constituent unit C and the constituent unit D 1 、R 2 、R 3 And R is 4 The same or different may be H, methyl, ethyl, isopropyl, or one of the constituent units A, B, C, D, n in the constituent unit D being 6, 8, 10.
The total mass of the synthetic monomer is 36-80% of the total mass of deionized water.
The step of removing the oxygen in the reaction vessel is to fill nitrogen into the reaction vessel for removing.
The initiator solution is a combination of an oxidant and a reducing agent, wherein the oxidant is potassium persulfate, ammonium persulfate or hydrogen peroxide, the reducing agent is sodium sulfite, sodium bisulfite or potassium borohydride, and the molar ratio of the oxidant to the reducing agent is 2-5:1-3.
The dosage of the initiator is 0.2-1.2% of the total mass of the synthetic monomer.
The present invention has the following advantages in terms of the current general technology:
1. 2-acrylamido-2-methylpropanesulfonic Acid (AMPS) is a common water-soluble anionic monomer, contains sulfonic groups, is relatively strong in resistance to acid, alkali and salt corrosion from the outside, and has good hydrolytic stability and excellent thermal stability due to the amide groups, and the stability of the structure of a copolymerization reaction product is ensured due to the combined action of the two groups; maleic Acid (MA) is used as a reaction monomer containing carboxyl, so that the adsorption capacity of a molecular chain of the amphoteric ion polymer retarder to cement particles is increased, thereby preventing hydration reaction of the cement particles, guaranteeing that the right-angle thickening phenomenon is shown, and prolonging the thickening time of aluminate cement paste; the benzene ring in the molecular structure of Sodium Styrene Sulfonate (SSS) promotes excellent high temperature resistance performance, is not easy to decompose below 300 ℃, has positive effect on the compressive strength of cement, enhances the polymerization induction effect by the sulfonic acid group on the para position, and can improve the success rate of the polymerization.
2. Introducing a cationic monomer which is used for mixing with Al in aluminate cement in the hydration process of the aluminate cement 3+ 、Ca 2+ Formation of unstable complexes, inhibition of Al in the liquid phase 3+ 、Ca 2+ The relative concentration of the cement paste and the retarder can generate a retarding effect, improve the pressure bleeding rate of the cement paste and prevent the problems of sedimentation delamination and bleeding of the cement paste caused by the increase of the addition amount of the retarder.
3. Some retarders for aluminate cement in the prior art have various problems, such as abnormal gelation, too short thickening time, large influence on strength and the like, and the zwitterionic polymer retarder has no such problems, so that the whole thickening process is stable and normal, and the influence on cement stones is very small.
4. The raw materials for synthesizing the zwitterionic polymer retarder are all common materials in the market, and are widely abundant in source, low in price, suitable for large-scale production and use, simple in synthesis process and condition and low in equipment requirement.
In conclusion, the method has the advantages of clear thought, mature and stable technology, wide material sources and low cost, and can be widely applied to the development and use of aluminate cement.
Drawings
FIG. 1 is a plot of the normal pressure 40℃thickening of the cement slurry of example 2.
FIG. 2 shows the comparison of thickening times of cement slurries of example 1, example 3 and comparative example 5 at 40℃under normal pressure.
FIG. 3 shows the compressive strength of the set cements of example 3, comparative example 1, and comparative example 3 when cured at a low temperature of 40℃for 3d and 7d, respectively.
Detailed Description
1. Composition, preparation and application of aluminate cement zwitterionic polymer retarder for well cementation
The following specific examples and comparative examples are combined to describe the specific embodiments of the present invention in detail, so as to facilitate the comprehensive understanding of the technical results of the present invention.
Example 1
The embodiment provides an aluminate cement zwitterionic polymer retarder for well cementation, which comprises the following formula: 48 parts of 2-propenyl amide-2-methylpropanesulfonic Acid (AMPS), 28.8 parts of Maleic Acid (MA), 13 parts of sodium p-styrenesulfonate (SSS) and 20 parts of cationic monomer; the 2-acrylamido-2-methylpropanesulfonic Acid (AMPS) provides a constituent unit a of formula 5 in the zwitterionic polymer retarder; the Maleic Acid (MA) provides the constituent unit B of formula 6; the sodium p-styrenesulfonate (SSS) provides constituent unit C of formula 7; the cationic monomer provides the building block D of formula 8, wherein the cationic monomer is self-made by China Petroleum university (Huadong) laboratory.
The synthesis steps of the cationic monomer are as follows: taking a fixed amount of chloropropene (C) 3 H 5 Cl), N-dimethyl long-chain alkyl tertiary amine (with the long-chain alkyl number of 4-10) and a little NaOH solution, and carrying out quaternization reaction under the reaction condition of 75 ℃ and 0.3MPa for 6 hours, and finally synthesizing to obtain the cationic monomer (preferably, N is 6, 8 and 10), wherein the reaction process is shown as a formula 9:
the synthesis process of the amphoteric ion polymer retarder is as follows: firstly, removing oxygen in a three-neck flask with an abrasive mouth of a reaction container, adding 28.8 parts of Maleic Acid (MA) into 220 parts of deionized water, stirring and mixing in a stirrer, weighing 48 parts of 2-propenyl amide-2-methylpropanesulfonic Acid (AMPS) and 13 parts of sodium p-styrenesulfonate (SSS), adding into the stirrer, continuously stirring to obtain a mixed reaction solution, and pouring all the mixed reaction solution into the three-neck flask with the abrasive mouth; leveling the pH value of the reaction solution to 4-5 by using NaOH solution, preferably, the pH value is 4, stirring is kept, the rotating speed is 200-500 rpm, preferably, the rotating speed is 300rpm, and no sediment exists; preparing 20 parts of cationic monomer, and quickly dripping and mixing by using a dropper when the state of the solution in the beaker is stable; and finally preparing an initiator solution, namely dropwise adding the initiator solution into a three-necked flask with an abrasive mouth at a dropwise adding rate of 5-10ml/min, keeping the temperature at 50-60 ℃, preferably, the reaction temperature at 50 ℃, and stirring and reacting for 8-10h to obtain the zwitterionic polymer retarder.
The initiator is a mixture of ammonium persulfate and sodium bisulphite, the addition molar ratio of the initiator to the sodium bisulphite is 2:1, and the addition of the initiator is 0.3 percent of the total mass of the monomers.
The aluminate cement comprises the following components: 69.25 parts of aluminum oxide, 0.24 part of silicon dioxide and 0.54 part of ferric oxide.
Example 2
The embodiment provides an aluminate cement zwitterionic polymer retarder for well cementation, which comprises the following formula: 55 parts of 2-propenyl amide-2-methylpropanesulfonic Acid (AMPS), 28.8 parts of Maleic Acid (MA), 6.5 parts of sodium p-styrenesulfonate (SSS) and 40 parts of cationic monomers.
The cationic monomer synthesis procedure, conditions, drug species, and reaction products of example 2 were consistent with example 1.
The synthesis process of the amphoteric ion polymer retarder is as follows: firstly, removing oxygen in a three-neck flask with an abrasive mouth of a reaction container, adding 28.8 parts of Maleic Acid (MA) into 220 parts of deionized water, stirring and mixing in a stirrer, then weighing 55 parts of 2-propenyl amide-2-methylpropanesulfonic Acid (AMPS) and 6.5 parts of sodium p-styrenesulfonate (SSS), adding into the stirrer, continuously stirring to obtain a mixed reaction solution, and pouring all the mixed reaction solution into the three-neck flask with the abrasive mouth; leveling the pH value of the reaction solution to 4-5 by using NaOH solution, preferably, the pH value is 4, stirring is kept, the rotating speed is 200-500 rpm, preferably, the rotating speed is 300rpm, and no sediment exists; preparing 40 parts of cationic monomer, and quickly dripping and mixing by using a dropper when the state of the solution in the beaker is stable; and finally preparing an initiator solution, namely dropwise adding the initiator solution into a three-necked flask with an abrasive mouth at a dropwise adding rate of 5-10ml/min, keeping the temperature at 50-60 ℃, preferably, the reaction temperature at 50 ℃, and stirring and reacting for 8-10h to obtain the zwitterionic polymer retarder.
The initiator is a mixture of ammonium persulfate and sodium bisulphite, the addition molar ratio of the initiator to the sodium bisulphite is 3:2, and the addition of the initiator is 0.4% of the total mass of the monomers.
The aluminate cement comprises the following components: 69.25 parts of aluminum oxide, 0.24 part of silicon dioxide and 0.54 part of ferric oxide.
Example 3
The embodiment provides an aluminate cement zwitterionic polymer retarder for well cementation, which comprises the following formula: 50 parts of 2-propenyl amide-2-methylpropanesulfonic Acid (AMPS), 14.4 parts of Maleic Acid (MA), 13 parts of sodium p-styrenesulfonate (SSS) and 30 parts of cationic monomers.
The synthesis steps of the cationic monomer are as follows: chloropropene and N, N-dimethyl long-chain alkyl tertiary amine (the number of long-chain alkyl is even between 14 and 24) and a little Na 2 CO 3 Mixing the solution and alcohol solvent (isopropanol), adding into a reaction container, reacting at 90 ℃ under 0.35MPa for 10 hours to obtain the cationic monomer with the alkyl chain length n of 15, 17, 19 or 21, wherein the reaction process is shown in formula 10:
the synthesis process of the amphoteric ion polymer retarder is as follows: firstly, removing oxygen in a three-neck flask with an abrasive mouth of a reaction container, adding 14.4 parts of Maleic Acid (MA) into 220 parts of deionized water, stirring and mixing in a stirrer, then weighing 50 parts of 2-propenyl amide-2-methylpropanesulfonic Acid (AMPS) and 13 parts of sodium p-styrenesulfonate (SSS), adding into the stirrer, continuously stirring to obtain a mixed reaction solution, and pouring all the mixed reaction solution into the three-neck flask with the abrasive mouth; leveling the pH value of the reaction solution to 4-5 by using NaOH solution, preferably, the pH value is 4, stirring is kept, the rotating speed is 200-500 rpm, preferably, the rotating speed is 300rpm, and no sediment exists; preparing 30 parts of cationic monomer, and quickly dripping and mixing by using a dropper when the state of the solution in the beaker is stable; and finally preparing an initiator solution, namely dropwise adding the initiator solution into a three-necked flask with an abrasive mouth at a dropwise adding rate of 5-10ml/min, keeping the temperature at 50-60 ℃, preferably, the reaction temperature at 50 ℃, and stirring and reacting for 8-10h to obtain the zwitterionic polymer retarder.
The initiator is a mixture of ammonium persulfate and sodium bisulphite, the addition molar ratio of the initiator to the sodium bisulphite is 1:1, and the addition of the initiator is 0.2% of the total mass of the monomers.
The aluminate cement comprises the following components: 69.25 parts of aluminum oxide, 0.24 part of silicon dioxide and 0.54 part of ferric oxide.
Comparative example 1
Comparative example 1 had the composition: 100 parts of aluminate cement and 44 parts of water.
Comparative example 2
Comparative example 2 had the composition: 100 parts of aluminate cement, a plurality of parts of citric acid and 44 parts of water.
Comparative example 3
Comparative example 3 had the composition: 100 parts of aluminate cement, a plurality of parts of boric acid and 44 parts of water.
Comparative example 4
Comparative example 4 had the composition: 100 parts of aluminate cement, a plurality of parts of sodium lignin sulfonate and 44 parts of water.
Comparative example 5
Comparative example 5 had the composition: 100 parts of aluminate cement, a plurality of parts of sucrose and 44 parts of water.
2. Performance test comparison of aluminate cement zwitterionic polymer retarder for well cementation
Examples 1, 2 and 3, comparative examples 1, 2, 3, 4 and 5 are prepared into cement slurry according to cement slurry API (application program interface) experimental standards, and according to GB/T19139-2012 oil well cement test method, SY/T6544-2017 oil well cement slurry performance requirements and SY/T6466-2016 oil well cement stone performance test method, the performances of the cement slurry system such as low-temperature compressive strength, thickening time and the like are tested and compared, experimental phenomena are observed, experimental rules are summarized, and experimental conclusion is obtained, so that the advantages and innovation points of the retarder are shown from the parameter test angle.
The influence of different temperatures and pressures on the retarding effect of the zwitterionic polymer retarder is explored; taking examples 1, 2 and 3 and comparative examples 1, 2, 3, 4 and 5 as test objects, firstly preparing 8 groups of aluminate cement paste, respectively adding retarder accounting for 0.6% of the mass of each group of aluminate cement paste, and testing thickening time and final setting time under different temperatures of normal pressure and high pressure.
Table 1 shows the thickening time of the aluminate cement zwitterionic polymer retarder for well cementation at different temperatures and pressures:
as can be seen from table 1: compared with the comparative example, the zwitterionic polymer retarder has a larger retarding effect on aluminate cement under different temperatures and different pressures, so that sufficient well cementation safe construction time is ensured, and on the other hand, the application range of the aluminate cement is directly enlarged, and the aluminate cement can be used in both shallow wells and medium deep wells; the number n of the alkyl chain length of the cationic monomer used in the examples 1 and 2 is within 10, and the cationic monomer used in the example 3 is relatively longer, and the longer the alkyl chain length n is, the more hydrophobic the monomer chain is, the stronger the hydrophobicity will influence the effect of the synthesized zwitterionic polymer retarder on retarding the aluminate cement, so that the cationic monomer with shorter chain length is preferentially used for synthesis; 2-acrylamide-2-methylpropanesulfonic Acid (AMPS) is used as a main framework of the zwitterionic polymer retarder group, and the stability and the integrity of the retarder macromolecule group at a higher temperature can be promoted by utilizing the advantage of good thermal stability; sodium Styrene Sulfonate (SSS) also has promotion effect on the structural stability of retarder macromolecular groups, and more importantly, the sulfonate group on the para position of the benzene ring has induction effectThe success rate of the copolymerization reaction is improved to a great extent; the adsorption and complexation of retarder macromolecular groups delay the hydration speed of modified aluminate cement, increase thickening time and lead the surface of cement particles to have a large amount of Al 3+ 、Ca 2+ On the one hand, the cationic monomer groups form unstable complexes with them, and on the other hand, -SO in the macromolecular groups 3- ，－COO - The plasma anions are adsorbed on the cement particles due to the principle of opposite attraction, the surfaces of the cement particles are occupied by a large number of polymer macromolecule groups, the cement particles are isolated from contacting and exchanging with external substances, the space repulsive force repels the condensation of the cement particles, meanwhile, the limited space between the cement particles is occupied due to the adsorption of the active molecule groups of the zwitterionic polymer retarder, so that the space steric effect is generated, the cement particles are further kept stable in dispersion, the fluidity of slurry is improved, the consistency of slurry is reduced, the site pouring construction is very favorable, the space of a filled casing is filled with cement slurry, and the occurrence of cross-over between wells is avoided.
The influence of different addition amounts on the retarding effect of the zwitterionic polymer retarder is explored; the examples 2 and 5 with good retarding effect are taken as test objects, and the thickening time and the cement paste thickening transition time are tested.
Table 2 shows the effects of the zwitterionic polymer retarder and the common retarder with different addition amounts:
as can be seen from table 2: the zwitterionic polymer retarder provided by the invention has the advantages that along with the increase of the addition, the thickening time is prolonged in a proportional manner, the thickening time is not greatly changed due to slight increase and decrease of the addition, the retarder is not particularly sensitive to the addition, the addition fault tolerance is improved, the addition of raw materials in a well cementation construction site is not necessarily as accurate as that in a laboratory condition, and therefore, the setting retarder is very favorable for regulating and controlling the thickening time on site according to the situation; meanwhile, the aluminate cement paste has short transition time, namely the right-angle thickening phenomenon is obvious, once the cement paste is poured in place between the sleeves, the fluidity of the cement paste can be quickly lost, the early strength is formed, and the possibility of accidents is reduced.
The influence of the zwitterionic polymer retarder on the strength of the cement stone is explored; the retarder addition was 0.6% for both the examples and comparative examples.
Table 3 shows the early low temperature cure strength:
as can be seen from the data in table 3: one of the stable products of low-temperature hydration of aluminate cement is C 3 AH 6 A loose material with a crystal structure, which leads to the deterioration of the strength of the set cement, and for the retarder, the strength of the set cement cannot be adversely affected greatly; with reference to comparative example 1, it was found that the zwitterionic polymer retarder of example 3 had the least impact on strength, the strength reduction rate was only between 0.71% and 4.69%, while examples 1 and 2 had somewhat greater strength reduction rates, but still maintained higher compressive strength, and the prior art retarders, like boric acid, citric acid, sodium lignin sulfonate, sucrose, had significantly reduced aluminate cement stone strength, with potential safety cementing quality hazards.
In conclusion, the aluminate cement zwitterionic polymer retarder for well cementation completely meets the engineering time requirement of aluminate cement well cementation, does not have great adverse effect on performances such as cement stone strength and the like, does not have phenomena such as super retarding, abnormal gelation and the like in a low-temperature environment, solves the technical problems which are difficult to overcome by the conventional aluminate cement well cementation technology, reduces damage of cement rings and sleeves, prevents accidents such as water channeling, gas channeling and the like, improves the production safety of oil wells, and has huge commercial engineering application potential and value.
Claims (5)
1. The preparation method of the aluminate cement zwitterionic polymer retarder for well cementation comprises the following steps of: 2-acrylamido-2-methylpropanesulfonic acid, maleic acid, sodium p-styrenesulfonate, cationic monomer;
the mass ratio of the preparation monomers is as follows: 45-60 parts of 2-propenyl amide-2-methylpropanesulfonic acid, 10-30 parts of maleic acid, 5.0-15 parts of sodium p-styrenesulfonate and 20-40 parts of cationic monomers;
the preparation process of the zwitterionic polymer retarder comprises the following steps: firstly, removing oxygen in a three-neck flask with an abrasive mouth of a reaction container, adding 10-30 parts of maleic acid into 180-250 parts of deionized water, stirring and mixing in a stirrer, weighing 45-60 parts of 2-propenyl amide-2-methylpropanesulfonic acid and 5.0-15 parts of sodium p-styrenesulfonate, adding into the stirrer, stirring and mixing to obtain a mixed reaction solution, and pouring all the mixed reaction solution into the three-neck flask with the abrasive mouth; leveling the pH value of the reaction solution to 4-5 by using NaOH solution, keeping stirring, and rotating at 200-500 rpm until no sediment exists; preparing 20-40 parts of cationic monomer, and quickly dripping and mixing by using a dropper when the state of the solution in the beaker is stable; finally preparing an initiator solution, wherein the initiator solution is required to be dripped into a three-necked flask with an abrasive mouth at a dripping rate of 5-10mL/min, and the reaction temperature is kept at 50-60 ℃ and the reaction is stirred for 8-10h, so that the zwitterionic polymer retarder can be obtained;
the structural formula of the cationic monomer is as follows:
wherein n is 6, 8 or 10.
2. The method for preparing the aluminate cement zwitterionic polymer retarder for well cementation according to claim 1, wherein the total mass of the prepared monomers is 36-80% of the total mass of deionized water.
3. The method for preparing the aluminate cement zwitterionic polymer retarder for well cementation according to claim 1, wherein the step of removing oxygen in the reaction vessel is to fill nitrogen into the reaction vessel for removal.
4. The method for preparing the zwitterionic polymer retarder for well cementation, which is characterized in that the initiator solution is a redox system combination, wherein the oxidant is potassium persulfate, ammonium persulfate or hydrogen peroxide, the reducing agent is sodium sulfite, sodium bisulfate or potassium borohydride, and the molar ratio of the oxidant to the reducing agent is 2-5:1-3.
5. The method for preparing the aluminate cement zwitterionic polymer retarder for well cementation according to claim 1, wherein the amount of the initiator is 0.2-1.2% of the total mass of the synthetic monomers.
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| CN105037625A (en) * | 2015-07-02 | 2015-11-11 | 中国石油大学(华东) | Modified aluminate cement retarder and preparation method thereof |
| CN109824822A (en) * | 2019-01-28 | 2019-05-31 | 中国石油大学(华东) | Temperature response type high temperature retarder suitable for oil gas well cementing operation and preparation method thereof and cementing slurry |
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| CN105037625A (en) * | 2015-07-02 | 2015-11-11 | 中国石油大学(华东) | Modified aluminate cement retarder and preparation method thereof |
| CN109824822A (en) * | 2019-01-28 | 2019-05-31 | 中国石油大学(华东) | Temperature response type high temperature retarder suitable for oil gas well cementing operation and preparation method thereof and cementing slurry |
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