CN106905937A - A kind of oil base drilling fluid extracting and cutting agent and preparation method thereof - Google Patents
A kind of oil base drilling fluid extracting and cutting agent and preparation method thereof Download PDFInfo
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- CN106905937A CN106905937A CN201710234741.XA CN201710234741A CN106905937A CN 106905937 A CN106905937 A CN 106905937A CN 201710234741 A CN201710234741 A CN 201710234741A CN 106905937 A CN106905937 A CN 106905937A
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- Prior art keywords
- drilling fluid
- cutting agent
- oil base
- extracting
- base drilling
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- 238000005553 drilling Methods 0.000 title claims abstract description 115
- 239000012530 fluid Substances 0.000 title claims abstract description 110
- 238000005520 cutting process Methods 0.000 title claims abstract description 90
- 238000002360 preparation method Methods 0.000 title claims abstract description 32
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 84
- 229960000892 attapulgite Drugs 0.000 claims abstract description 35
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 35
- KWLMIXQRALPRBC-UHFFFAOYSA-L hectorite Chemical compound [Li+].[OH-].[OH-].[Na+].[Mg+2].O1[Si]2([O-])O[Si]1([O-])O[Si]([O-])(O1)O[Si]1([O-])O2 KWLMIXQRALPRBC-UHFFFAOYSA-L 0.000 claims abstract description 34
- 238000003756 stirring Methods 0.000 claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 239000002270 dispersing agent Substances 0.000 claims abstract description 18
- 239000000725 suspension Substances 0.000 claims abstract description 18
- 229910000271 hectorite Inorganic materials 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000032683 aging Effects 0.000 claims abstract description 9
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 claims abstract description 7
- 235000013312 flour Nutrition 0.000 claims abstract description 4
- 239000002253 acid Substances 0.000 claims description 9
- QXDMQSPYEZFLGF-UHFFFAOYSA-L calcium oxalate Chemical group [Ca+2].[O-]C(=O)C([O-])=O QXDMQSPYEZFLGF-UHFFFAOYSA-L 0.000 claims description 5
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 4
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 4
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 4
- 239000005642 Oleic acid Substances 0.000 claims description 4
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 4
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 4
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 235000005979 Citrus limon Nutrition 0.000 claims 2
- 244000248349 Citrus limon Species 0.000 claims 1
- 244000131522 Citrus pyriformis Species 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 14
- 239000002994 raw material Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 239000002585 base Substances 0.000 description 80
- 239000003921 oil Substances 0.000 description 80
- 238000001914 filtration Methods 0.000 description 15
- 239000007788 liquid Substances 0.000 description 10
- 239000008186 active pharmaceutical agent Substances 0.000 description 8
- 239000004033 plastic Substances 0.000 description 8
- 229920003023 plastic Polymers 0.000 description 8
- 238000010276 construction Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 6
- 239000013078 crystal Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008719 thickening Effects 0.000 description 6
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 5
- 239000000654 additive Substances 0.000 description 5
- 239000003225 biodiesel Substances 0.000 description 5
- 239000002283 diesel fuel Substances 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- 229960001927 cetylpyridinium chloride Drugs 0.000 description 4
- YMKDRGPMQRFJGP-UHFFFAOYSA-M cetylpyridinium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+]1=CC=CC=C1 YMKDRGPMQRFJGP-UHFFFAOYSA-M 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 3
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 3
- 239000010428 baryte Substances 0.000 description 3
- 229910052601 baryte Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005660 chlorination reaction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000003995 emulsifying agent Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- COBPKKZHLDDMTB-UHFFFAOYSA-N 2-[2-(2-butoxyethoxy)ethoxy]ethanol Chemical compound CCCCOCCOCCOCCO COBPKKZHLDDMTB-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 150000003973 alkyl amines Chemical class 0.000 description 2
- 150000004982 aromatic amines Chemical class 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- FNAQSUUGMSOBHW-UHFFFAOYSA-H calcium citrate Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O.[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O FNAQSUUGMSOBHW-UHFFFAOYSA-H 0.000 description 2
- 239000001354 calcium citrate Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000005213 imbibition Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 229920000768 polyamine Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 235000013337 tricalcium citrate Nutrition 0.000 description 2
- 229910052902 vermiculite Inorganic materials 0.000 description 2
- 239000010455 vermiculite Substances 0.000 description 2
- 235000019354 vermiculite Nutrition 0.000 description 2
- 239000000080 wetting agent Substances 0.000 description 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 1
- TWJNQYPJQDRXPH-UHFFFAOYSA-N 2-cyanobenzohydrazide Chemical compound NNC(=O)C1=CC=CC=C1C#N TWJNQYPJQDRXPH-UHFFFAOYSA-N 0.000 description 1
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 1
- KYXHKHDZJSDWEF-LHLOQNFPSA-N CCCCCCC1=C(CCCCCC)C(\C=C\CCCCCCCC(O)=O)C(CCCCCCCC(O)=O)CC1 Chemical compound CCCCCCC1=C(CCCCCC)C(\C=C\CCCCCCCC(O)=O)C(CCCCCCCC(O)=O)CC1 KYXHKHDZJSDWEF-LHLOQNFPSA-N 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 235000021360 Myristic acid Nutrition 0.000 description 1
- TUNFSRHWOTWDNC-UHFFFAOYSA-N Myristic acid Natural products CCCCCCCCCCCCCC(O)=O TUNFSRHWOTWDNC-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 235000010210 aluminium Nutrition 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- UAMZXLIURMNTHD-UHFFFAOYSA-N dialuminum;magnesium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Mg+2].[Al+3].[Al+3] UAMZXLIURMNTHD-UHFFFAOYSA-N 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 229940043237 diethanolamine Drugs 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 150000002081 enamines Chemical class 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 150000002891 organic anions Chemical class 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 150000004291 polyenes Chemical class 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 235000019394 potassium persulphate Nutrition 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical group CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 125000001453 quaternary ammonium group Chemical class 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- 239000002562 thickening agent Substances 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
- C09K8/02—Well-drilling compositions
- C09K8/32—Non-aqueous well-drilling compositions, e.g. oil-based
- C09K8/36—Water-in-oil emulsions
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The present invention is a kind of oil base drilling fluid extracting and cutting agent and preparation method thereof, can be effectively improved the rheological property of oil base drilling fluid, suspension and carrying capacity of the lifting drilling fluid to weighting material and drilling cuttings.This extracting and cutting agent is in terms of 100 weight portions, including following components：The modified weight portion of hectorite 2 ~ 14；The weight portion of modified attapulgite 6 ~ 8；The weight portion of dispersant 2 ~ 4；Other are base fluid.The preparation method of extracting and cutting agent, its step is as follows：A, modified hectorite and modified attapulgite are mixed with water after be configured to 1% ~ 1.5% suspension, then at a temperature of 70 ~ 80 DEG C add 0.5~1% be polymerized hydroxyl Chloride Solution；After b, stirring are aging, powder is ground to after being calcined at 250 ~ 300 DEG C；C, 10 ~ 20% abrasive flour is added in base fluid, is stirred after heating, be subsequently adding 2 ~ 4% dispersant, stirring is to well mixed.Extensively, preparation process is simple for raw material sources, and the extracting and cutting agent of preparation carries that to cut effect obvious.
Description
Technical field
Extracting and cutting agent the present invention relates to petroleum industry drilling fluid and preparation method thereof, particularly a kind of oil base drilling fluid is with carrying
Agent and preparation method thereof is cut, the rheological property of oil base drilling fluid can be effectively improved, lifting drilling fluid is to weighting material and drilling cuttings
Suspend and carrying capacity.
Background technology
With the development of modern drilling technology, borehole wall stability is strong, lubricity is good, antipollution because it has for oil base drilling fluid
Ability is strong, small to formation damage etc., and premium properties turns into the important means of various complex stratigraphic drillings.Shear force is to determine that oil base is bored
One of crucial rheological characteristic parameter of well liquid performance, its size directly affects drilling fluid and takes lithology, barite sedimentation stability etc..Only
There is holding shear force higher and keep stabilization, could successfully drill Holes of Complicated Wells, especially deep-well, hp-ht well.But, it is generally oily
Base drilling fluid has that shear force is low, improves the few problem of shear force technological means, limits it and applies scale and use scope.
In order to improve the shear force of oil base drilling fluid, oil worker has carried out a series of relation technological researchings.It is usually used
Organic polymer as oil base drilling fluid extracting and cutting agent main component, such as the patent of Application No. CN201610381991.1 " bore
Well liquid compositions of additives and its application and oil base drilling fluid and its application " discloses a kind of drilling fluid containing extracting and cutting agent and matches somebody with somebody
Side, the extracting and cutting agent in the patent is dimeric dibasic acid-organic amine copolymer, and the copolymer includes the construction unit from dimeric dibasic acid, comes
Construction unit from alkylamine and the construction unit from aromatic amine.The patent of Application No. CN201610073261.5 " is bored
The compositions of additives of well liquid is with high temperature resistance without native mutually full oil base drilling fluid " a kind of compositions of additives of drilling fluid is disclosed,
Said composition contains extracting and cutting agent, emulsifying agent and tackifier, wherein the extracting and cutting agent is dimeric dibasic acid-organic amine copolymer, the copolymerization
Thing includes the construction unit from dimeric dibasic acid, the construction unit from alkylamine and the construction unit from aromatic amine.Application
Number one is disclosed for the patent " oil base drilling fluid modified poly acids extracting and cutting agent and preparation method " of CN201510910347.4
Oil base drilling fluid modified poly acids extracting and cutting agent and preparation method are planted, the modified poly acids extracting and cutting agent of oil base drilling fluid is by more
The inorganic agents such as polyacids, polyamines polyene and primary amine are formed by dehydrating polycondensation reaction, and the extracting and cutting agent belongs to the polymer of low molecule class
Extracting and cutting agent.The patent " a kind of oil base drilling fluid extracting and cutting agent and preparation method thereof " of Application No. CN201510507264.0 is open
A kind of oil base drilling fluid extracting and cutting agent, the extracting and cutting agent is main component by myristic acid, stearate.Application No.
The patent " one kind thickening extracting and cutting agent and its production and use " of CN201510260760.0 discloses a kind of thickening extracting and cutting agent
And preparation method thereof.The thickening extracting and cutting agent is by carboxyl by dimer (fatty acid) yl and polyethylene polyamine:Amido=1:0.4~1.6
Mol ratio, under conditions of triethylene glycol butyl ether presence react and be made.The patent " one of Application No. CN201410820504.8
Kind of oil resistant base drilling fluid extracting and cutting agent and preparation method and application " discloses a kind of oil resistant base drilling fluid and is cut with carrying
Agent and preparation method and application.The extracting and cutting agent is by dimeric dibasic acid, triethylene glycol butyl ether, diethanol amine, organic enamine, carbonic acid
Propylene reaction is made.Patent " a kind of oil base drilling fluid extracting and cutting agent and its preparation side of Application No. CN201410692203.1
Method " discloses a kind of oil base drilling fluid extracting and cutting agent and preparation method thereof.The extracting and cutting agent is by maleic anhydride, styrene, draws
Hair agent, alcohol compound, catalyst etc. are prepared from.A kind of patent " fluorine-containing oil base of Application No. CN201210054648.8
Drilling fluid extracting and cutting agent and preparation method thereof " discloses a kind of fluorine-containing oil base drilling fluid extracting and cutting agent and preparation method thereof, the extracting and cutting agent
Processed by acrylate, perfluor alkyl ethyl acrylate, dimethyl sulfoxide, azodiisobutyronitrile, anhydrous propanone, absolute ether etc.
Agent is prepared from.
Related article has：《The synthesis with increasing stick extracting and cutting agent and performance without native phase oil base drilling fluid》（Petrochemical industry 2016
The 9th phase of volume 45）One kind is described without native phase oil base drilling fluid increasing stick extracting and cutting agent, the extracting and cutting agent is by methacrylic acid 16
The inorganic agents such as ester, styrene, potassium peroxydisulfate, divinylbenzene, neopelex, OP-10 pass through emulsion polymerization
It is prepared from.《The development of oil base drilling fluid extracting and cutting agent and performance evaluation》（Modern chemical industry 2014 year the 7th phase of volume 34）Introduce
One kind by suspension polymerization synthesizes a kind of oleophylic with styrene, methyl methacrylate and Process Conditions of Cetane Acrylate as monomer
Copolymer extracting and cutting agent.《The development of polyester extracting and cutting agent and the preparation of high density oil bag aqueous drilling fluid》（Drilling and completion fluids 2015
The 6th phase of volume 32 year）One kind is described with high-purity dimeric acid and APEO fatty amine as raw material, is synthesized by condensation methods
A kind of oil-soluble polyester extracting and cutting agent.《The composition research of oil base drilling fluid extracting and cutting agent》（Chemical Engineer's o. 11th in 2014）Introduce
A kind of is that carrying of preparing of main inorganic agent compounding is cut with oleic acid polyethylene glycol monoesters, isooctyl acid aluminium, palmitic acid, myristic acid
Agent.《The synthesis of VIS-3 types oil base drilling fluid thickening extracting and cutting agent and its performance study》（Environmentally friendly drilling liquid technology and rejected well drilling liquid
Treatment technology conference Papers collection）Describe it is a kind of with higher fatty acids be main former Tu, using condensation method be prepared from it is complete
Oil base drilling fluid viscosifies extracting and cutting agent.
Added in oil base drilling fluid using organic polymer as the oil base drilling fluid extracting and cutting agent of main component, though have
The advantage of oil base drilling fluid performance can be improved, but it is not extensive to there are raw material sources, and course of reaction requirement is high, preparation cost
High deficiency.
The content of the invention
It is an object of the invention to provide a kind of oil base drilling fluid extracting and cutting agent and preparation method thereof, the material of the extracting and cutting agent comes
Source is extensive, preparation cost is low, can improve rheological property of oil base drilling fluid, suspension of the lifting drilling fluid to weighting material and drilling cuttings
With carrying capacity, production cost is reduced.
In order to reach the purpose of the present invention, the invention provides following technical scheme：
A kind of oil base drilling fluid extracting and cutting agent, the extracting and cutting agent is in terms of 100 weight portions, including following components：
The modified weight portion of hectorite 2 ~ 14；
The weight portion of modified attapulgite 6 ~ 8；
The weight portion of dispersant 2 ~ 4；
Other are base fluid.
The preparation method of oil base drilling fluid extracting and cutting agent, its step is as follows：
A, modified hectorite and modified attapulgite are mixed with water after be configured to 1 ~ 1.5% suspension, then at 70 ~ 80 DEG C
At a temperature of add 0.5~1% be polymerized hydroxyl Chloride Solution；
After b, stirring are aging, powder is ground to after being calcined at 250 ~ 300 DEG C；
C, 10 ~ 20% abrasive flour is added in base fluid, is stirred after heating, be subsequently adding 2 ~ 4% dispersant, stirring is to mixed
Close uniform.
Compared with oil base drilling fluid extracting and cutting agent of the existing machine macromolecule for main component, remarkable result of the invention exists
In：Using modified hectorite and modified attapulgite as main raw material(s), raw material sources extensively, are prepared extracting and cutting agent of the invention
Process is simple, and the extracting and cutting agent of preparation carries that to cut effect obvious.Hectorite be it is a kind of containing magnesium, lithium, silicon clay mineral, category montmorillonite,
Vermiculite subtribe in vermiculite race, crystal structure is trioctahedron type.Generally canescence, quality is fine and smooth, and hardness is small.Hectorite energy
Expand quickly, the gel comprising a large amount of Water Network structures is formed, with preferable thixotropy, dispersiveness, suspension and thickening property.
The electrolyte such as a small amount of acid, alkali, salt are added in gel aqueous dispersion, the reduction of colloid viscosity will not be made or condensed, to electrolyte
There is larger appearance patience, colloid-stabilised performance is good；There are preferable compatibility and compatibility with organic anion colloid, can play
Synergistic thickening is acted on.Therefore, hectorite can be used to prepare coating, cosmetics, medicine, thickener, dispersant, suspending agent, smog
Agent, rubber latex etc..
Attapulgite is that a kind of crystalloid is hydrated alumina magnesia silicate, with unique layer chain structure feature, in its knot
There is crystal lattice in structure, variable amount of Na is contained in crystal+、Ca2+、Fe3+、Al3+, crystal is in needle-like, threadiness or fiber collection
Close shape.Attapulgite has the good colloidal nature such as unique dispersion, high temperature resistant, salt resistance alkali and adsorption bleaching energy higher
Power, and with certain plasticity and cohesive force, with the intermediate structure between chain structure and layer structure.Concave convex rod
Stone is in earthy, compact massive, is originated in sedimentary rock and weathering crust, and color is white, canescence, cinerous, celadon or weak silk
Thin,tough silk gloss.Soil property is fine and smooth, there is oily soapy, and light weight, property are crisp, and fracture is in conchoidal or irregular shape, and water imbibition is strong, and suspension meets electricity
Medium not flocculation sediment.Due to the unique crystal structure of attapulgite, it is allowed to many special materializations and processing performance, it is main
Wanting physical and chemical performance and processing performance has：Cation interchangeability, water imbibition, adsorption bleaching, with larger specific surface area, its
Specific surface area is in 9.6~36m2Between/g.Attapulgite in calcination process, abjection the half crystallization water after, by after aquation not
Original configuration state can be only returned to, and the diffraction peak intensity of crystal is strengthened, and thinks it is attapulgite warp
Structural order is improved after Overheating Treatment-hydrating cycles.Can not after the attapulgite constitution water of the heat treatment more than 350 DEG C is completely out
Original configuration state is returned to by hydration.
Research report, hectorite and attapulgite pass through hexadecyl dimethyl benzyl quaternary ammonium, chlorination dodecyl
After one or more composition modified in dimethyl benzyl quaternary ammonium, cetylpyridinium chloride(CPC), its emulsification is significantly increased steady
Qualitative and solubilising.
The present invention manufactures extracting and cutting agent from modified hectorite and attapulgite, be with the addition of in oil base drilling fluid containing modified
After the extracting and cutting agent of hectorite and attapulgite, the shear force of oil base drilling fluid system can be improved, oil base drilling fluid body can be reduced again
The filter loss of system, improves suspending power of the oil base drilling fluid to weighting material and the carrying capacity to drilling cuttings.
The oil base drilling fluid formula of experiment of the present invention is：The primary emulsion of calcium chloride solution+3%+2% of 80% diesel oil+20%
Oil base sealing agent+the 2%CaO of+3% oil base fluid loss additive of auxiliary+3% organoclay of the wetting agent of emulsifying agent+2%+2%, chlorination in calcium chloride solution
The content of calcium is 25%, and 1.7 g/cm are exacerbated to using barite3, in high temp roller heating furnace, after rolling 16h at 120 DEG C,
Its plastic viscosity 42 mPa.s, yield value 14.5Pa are measured with six speed rotation viscometer ZNN-D6 at 60 DEG C ,/egress 6/ of ingressing
8.5, middle press filtration commits a breach of etiquette measure API filtration FL for 1.2mL.
Extracting and cutting agent of the invention 0.5% is added on the basis of above-mentioned oil base drilling fluid, in high temp roller heating furnace, 120 DEG C
Lower rolling 16h, its plastic viscosity 55 mPa.s, yield value 23Pa are measured at 60 DEG C with six speed rotation viscometer ZNN-D6, ingress/
Egress 8.5/23, middle press filtration commits a breach of etiquette measure API filtration FL for 0.4mL.According to experimental result it can be confirmed that the present invention can be improved
The shear force of oil base drilling fluid, can reduce the filter loss of oil base drilling fluid system again, improve oil base drilling fluid and weighting material is hanged
I and the carrying capacity to drilling cuttings.Improve suspending power of the oil base drilling fluid to weighting material and the carrying energy to drilling cuttings
Power, can solve the problem that conventional oil base drilling fluid shear force is low, drilling fluid takes lithology deficiency, can avoid the heavy of weighting material
Drop, improves the large rock-carrying ability of oil base drilling fluid, is conducive to improving construction safety of the oil base drilling fluid in Holes of Complicated Wells.
Specific embodiment
The present invention is described in detail with reference to embodiments, but protection scope of the present invention is not limited to following implementation
Example.
A kind of oil base drilling fluid extracting and cutting agent, it is composed of the following components in terms of 100 weight portions：
The modified weight portion of hectorite 2 ~ 14；
The weight portion of modified attapulgite 6 ~ 8；
The weight portion of dispersant 2 ~ 4；
Other are base fluid.
The base fluid includes white oil and diesel oil.
The dispersant is calcium oxalate, calcium citrate or oleic acid, its content preferably 2 ~ 3 weight portions.
The dispersant is 2 weight portions.
The content of the modified hectorite preferably 12 ~ 14 weight portions.
The content of the modified hectorite is 14 weight portions.
The content of the modified attapulgite preferably 8 weight portions.
A kind of preparation method of oil base drilling fluid extracting and cutting agent, its step is as follows：
A, modified hectorite and modified attapulgite are mixed with water after be configured to 1 ~ 1.5% suspension, then at 70 ~ 80 DEG C
At a temperature of add 0.5 ~ 1% be polymerized hydroxyl Chloride Solution；
After b, stirring are aging, powder is ground to after being calcined at 250 ~ 300 DEG C；
C, 10 ~ 20% abrasive flour is added in base fluid, is stirred after heating, be subsequently adding 2 ~ 4% dispersant, stirring is to mixed
Close uniform.
The heating-up temperature stirred after the heating is 33 ~ 38 degree.
The following is embodiments of the invention：
Embodiment 1
Drilling fluid includes following components with extracting and cutting agent in the present embodiment：
The weight portion of white oil 76；
The modified weight portion of hectorite 14；
The weight portion of modified attapulgite 8；
The weight portion of dispersant 2.
Preparation process is as follows：
Modified hectorite and modified attapulgite are quaternary ammonium modified with hexadecyl dimethyl benzyl.
1% suspension is configured to after modified hectorite and modified attapulgite are mixed with water, is then added at 80 DEG C
After 0.5% polymerization hydroxyl Chloride Solution stirring is aging, powder is ground to after being calcined at 300 DEG C.
By in above-mentioned 20% powder addition white oil, the heating stirring at 33 DEG C is subsequently adding 2% calcium citrate, and stirring is extremely
It is well mixed, that is, obtain the oil base drilling fluid extracting and cutting agent.
The oil base drilling fluid formula of experiment of the present invention is：The primary emulsion+2% of+20% calcium chloride solution of 80% diesel oil+3% is auxiliary
Oil base sealing agent+the 2%CaO of+3% oil base fluid loss additive of+3% organoclay of the wetting agent of emulsifying agent+2%+2%, calcium chloride in calcium chloride solution
Content be 25%, be exacerbated to 1.7 g/cm using barite3, in high temp roller heating furnace, after rolling 16h at 120 DEG C, 60
Its plastic viscosity 42 mPa.s, yield value 14.5Pa are measured with six speed rotation viscometer ZNN-D6 at DEG C ,/egress 6/8.5 of ingressing,
Middle press filtration commits a breach of etiquette measure API filtration FL for 1.2mL.
Using this preferred embodiment prepare formed by carry and cutting after liquid is added in above-mentioned oil base drilling fluid, in high temp roller plus
In hot stove, 16h is rolled at 120 DEG C, its plastic viscosity 56 mPa.s is measured with six speed rotation viscometer ZNN-D6 at 60 DEG C, it is dynamic to cut
Power 23.5Pa ,/egress 8.5/24 of ingressing, middle press filtration is committed a breach of etiquette and determines API filtration FL 0.4mL.Can be demonstrate,proved according to experimental result
Real, the present embodiment can improve the shear force of oil base drilling fluid system, the filter loss of oil base drilling fluid system can be significantly reduced again, can
Improve the suspension to weighting material and drilling cuttings and carrying capacity.
Embodiment 2
Drilling fluid includes following components with extracting and cutting agent in the present embodiment：
The weight portion of diesel oil 76；
The modified weight portion of hectorite 12；
The weight portion of modified attapulgite 8
The weight portion of dispersant 4.
Preparation process is as follows：
Modified hectorite and modified attapulgite are modified with chlorination dodecyl dimethyl benzyl quaternary ammonium.
1.5% suspension is configured to after modified hectorite and modified attapulgite are mixed with water, is then added at 70 DEG C
Enter the stirring of 1% polymerization hydroxyl Chloride Solution aging, powder is ground to after being calcined at 250 DEG C.
By in above-mentioned 20% powder addition diesel oil, heating stirring at 34 DEG C is subsequently adding 4% oleic acid, and stirring is equal to mixing
It is even, that is, obtain the oil base drilling fluid extracting and cutting agent.
The formula and measurement result of the oil base drilling fluid used in the present embodiment are same as Example 1.
Using the present embodiment prepare formed by carry and cutting after liquid is added in above-mentioned oil base drilling fluid, in high temp roller heating furnace
In, 16h is rolled at 120 DEG C, measure its plastic viscosity 55 mPa.s, yield value with six speed rotation viscometer ZNN-D6 at 60 DEG C
23Pa ,/egress 8/24 of ingressing, middle press filtration commits a breach of etiquette measure API filtration FL for 0.8mL.According to experimental result it can be confirmed that originally
Embodiment can improve the shear force of oil base drilling fluid system, and the filter loss of oil base drilling fluid system, Neng Gouti can be preferably reduced again
Suspension and carrying capacity to weighting material and drilling cuttings high.
Embodiment 3
Drilling fluid includes following components with extracting and cutting agent in the present embodiment：
The weight portion of biodiesel 85；
The modified weight portion of hectorite 5；
The weight portion of modified attapulgite 7
The weight portion of dispersant 3.
Preparation process is as follows：
Modified hectorite and modified attapulgite are modified with cetylpyridinium chloride(CPC).
1% suspension is configured to after modified hectorite and modified attapulgite are mixed, then adds 1% to gather at 80 DEG C
After the Chloride Solution stirring of conjunction hydroxyl is aging, powder is ground to after being calcined at 280 DEG C.
By in above-mentioned 10% powder addition biodiesel, the heating stirring at 36 DEG C is subsequently adding 3% calcium oxalate, stirring
To well mixed, that is, obtain the drilling fluid extracting and cutting agent.
The formula and measurement result of the oil base drilling fluid used in the present embodiment are same as Example 1.
Using the present embodiment prepare formed by carry and cutting after liquid is added in above-mentioned oil base drilling fluid, in high temp roller heating furnace
In, 16h is rolled at 120 DEG C, measure its plastic viscosity 54 mPa.s, yield value with six speed rotation viscometer ZNN-D6 at 60 DEG C
23Pa ,/egress 7/22 of ingressing, middle press filtration commits a breach of etiquette measure API filter losses FL for 0.6mL.According to experimental result it can be confirmed that originally
Embodiment can improve the shear force of system, and the filter loss of oil base drilling fluid system can be well reduced again, it is possible to increase to aggravating material
Suspension and the carrying capacity of material and drilling cuttings.
Embodiment 4
Drilling fluid includes following components with extracting and cutting agent in the present embodiment：
The weight portion of biodiesel 89；
The modified weight portion of hectorite 2；
The weight portion of modified attapulgite 6
The weight portion of dispersant 3.
Preparation process is as follows：
Modified hectorite and modified attapulgite are modified with cetylpyridinium chloride(CPC).
1% suspension is configured to after modified hectorite and modified attapulgite are mixed, then 0.5% is added at 80 DEG C
The Chloride Solution stirring of polymerization hydroxyl is aging, and powder is ground to after being calcined at 280 DEG C.
By in above-mentioned 10% powder addition biodiesel, the heating stirring at 38 DEG C is subsequently adding 3% calcium oxalate, stirring
To well mixed, that is, obtain the drilling fluid extracting and cutting agent.
The formula and measurement result of the oil base drilling fluid used in the present embodiment are same as Example 1.
Using the present embodiment prepare formed by carry and cutting after liquid is added in above-mentioned oil base drilling fluid, in high temp roller heating furnace
In, 16h is rolled at 120 DEG C, measure its plastic viscosity 52mPa.s, yield value with six speed rotation viscometer ZNN-D6 at 60 DEG C
22.5Pa ,/egress 7.5/21 of ingressing, middle press filtration commits a breach of etiquette measure API filtration FL for 1.0 mL.Can be demonstrate,proved according to experimental result
Real, the present embodiment can improve the shear force of oil base drilling fluid system, can also reduce the filter loss of oil base drilling fluid system, it is possible to increase
Suspension and carrying capacity to weighting material and drilling cuttings.
Embodiment 5
Drilling fluid includes following components with extracting and cutting agent in the present embodiment：
The weight portion of white oil 82；
The modified weight portion of hectorite 9；
The weight portion of modified attapulgite 7
The weight portion of dispersant 2.
Preparation process is as follows：
Modified hectorite and modified attapulgite are modified with cetylpyridinium chloride(CPC).
1.3% suspension is configured to after modified hectorite and modified attapulgite are mixed, is then added at 70 DEG C
0.7% polymerization hydroxyl Chloride Solution stirring is aging, and powder is ground to after being calcined at 290 DEG C.
By in above-mentioned 17% powder addition biodiesel, the heating stirring at 37 DEG C is subsequently adding 2.8% calcium oxalate, stirs
Mix to well mixed, that is, obtain the drilling fluid extracting and cutting agent.
The formula and measurement result of the oil base drilling fluid used in the present embodiment are same as Example 1.
Using the present embodiment prepare formed by carry and cutting after liquid is added in above-mentioned oil base drilling fluid, in high temp roller heating furnace
In, 16h is rolled at 120 DEG C, measure its plastic viscosity 51mPa.s, yield value with six speed rotation viscometer ZNN-D6 at 60 DEG C
21.5Pa, ingress/egress 6.5/20.5, and middle press filtration commits a breach of etiquette measure API filtration FL for 0.8 mL.Can be with according to experimental result
Confirm, the present embodiment can improve the shear force of oil base drilling fluid system, can also reduce the filter loss of oil base drilling fluid system, Neng Gouti
Suspension and carrying capacity to weighting material and drilling cuttings high.
The present invention is only limited to absolutely not above-described embodiment, all embodiments drawn using mentality of designing of the invention and its changes
Enter and belong to protection category of the invention.
Claims (9)
1. a kind of oil base drilling fluid extracting and cutting agent, composed of the following components in terms of 100 weight portions：
The modified weight portion of hectorite 2 ~ 14；
The weight portion of modified attapulgite 6 ~ 8；
The weight portion of dispersant 2 ~ 4；
Other are base fluid.
2. a kind of oil base drilling fluid extracting and cutting agent as claimed in claim 1, it is characterized in that, the base fluid includes white oil and bavin
Oil.
3. a kind of oil base drilling fluid extracting and cutting agent as claimed in claim 1, it is characterized in that, the dispersant is calcium oxalate, lemon
Lemon acid calcium or oleic acid, its content are 2 ~ 3 weight portions.
4. a kind of oil base drilling fluid extracting and cutting agent as claimed in claim 3, it is characterized in that, the dispersant is 2 weight portions.
5. a kind of oil base drilling fluid extracting and cutting agent as claimed in claim 1, it is characterized in that, the content of the modified hectorite is
12 ~ 14 weight portions.
6. a kind of oil base drilling fluid extracting and cutting agent as claimed in claim 5, it is characterized in that, the content of the modified hectorite is
14 weight portions.
7. a kind of oil base drilling fluid extracting and cutting agent as claimed in claim 1, it is characterized in that, the content of the modified attapulgite
It is 8 weight portions.
8. a kind of preparation method of oil base drilling fluid extracting and cutting agent as claimed in claim 1, its step is as follows：
A, modified hectorite and modified attapulgite are mixed with water after be configured to 1% ~ 1.5% suspension, then at 70 ~ 80 DEG C
At a temperature of add 0.5 ~ 1% be polymerized hydroxyl Chloride Solution；
After b, stirring are aging, powder is ground to after being calcined at 250 ~ 300 DEG C；
C, 10 ~ 20% abrasive flour is added in base fluid, is stirred after heating, be subsequently adding 2 ~ 4% dispersant, stirring is to mixed
Close uniform.
9. a kind of preparation method of oil base drilling fluid extracting and cutting agent as claimed in claim 8, it is characterized in that, stirred after the heating
The heating-up temperature mixed is 33 ~ 38 degree.
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| CN108329896A (en) * | 2018-03-27 | 2018-07-27 | 中国石油大学(华东) | High temperature resistance artificial clay and preparation method thereof and water-base drilling fluid |
| CN110157395A (en) * | 2019-04-26 | 2019-08-23 | 中石化石油工程技术服务有限公司 | Oil base drilling fluid extracting and cutting agent composition, oil base drilling fluid extracting and cutting agent product and preparation method thereof and oil base drilling fluid |
| CN110183596A (en) * | 2019-04-26 | 2019-08-30 | 中石化石油工程技术服务有限公司 | Composite modified hectorite and preparation method thereof and the application in oil base drilling fluid |
| CN111378421A (en) * | 2018-12-28 | 2020-07-07 | 中国石油天然气股份有限公司 | Well killing fluid and preparation method thereof |
| CN111925779A (en) * | 2019-05-13 | 2020-11-13 | 中国石油化工股份有限公司 | Constant-current variable environment-friendly synthetic base drilling fluid and preparation method thereof |
| CN115418205A (en) * | 2022-08-03 | 2022-12-02 | 成都理工大学 | Drilling fluid base slurry and high-temperature drilling fluid |
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| CN115418205A (en) * | 2022-08-03 | 2022-12-02 | 成都理工大学 | Drilling fluid base slurry and high-temperature drilling fluid |
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