CN114835442B - Liquid well cementation material and preparation method thereof - Google Patents
Liquid well cementation material and preparation method thereof Download PDFInfo
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- CN114835442B CN114835442B CN202210425876.5A CN202210425876A CN114835442B CN 114835442 B CN114835442 B CN 114835442B CN 202210425876 A CN202210425876 A CN 202210425876A CN 114835442 B CN114835442 B CN 114835442B
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- 239000000463 material Substances 0.000 title claims abstract description 56
- 239000007788 liquid Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 97
- 239000004568 cement Substances 0.000 claims abstract description 22
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 claims abstract description 17
- 239000000701 coagulant Substances 0.000 claims abstract description 11
- 239000012753 anti-shrinkage agent Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- 229920006305 unsaturated polyester Polymers 0.000 claims abstract description 9
- WWMQIJFJSHVMDM-UHFFFAOYSA-N 2-ethenoxycarbonylbenzoic acid Chemical compound OC(=O)C1=CC=CC=C1C(=O)OC=C WWMQIJFJSHVMDM-UHFFFAOYSA-N 0.000 claims abstract description 4
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 claims abstract description 4
- SWIKUBQHYLQDEN-UHFFFAOYSA-N 3-ethenoxycarbonylbenzoic acid Chemical compound OC(=O)C1=CC=CC(C(=O)OC=C)=C1 SWIKUBQHYLQDEN-UHFFFAOYSA-N 0.000 claims abstract description 3
- ZVKPGHYZRCHUJO-UHFFFAOYSA-N 4-ethenoxycarbonylbenzoic acid Chemical compound OC(=O)C1=CC=C(C(=O)OC=C)C=C1 ZVKPGHYZRCHUJO-UHFFFAOYSA-N 0.000 claims abstract description 3
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000002253 acid Substances 0.000 claims description 21
- 229920000642 polymer Polymers 0.000 claims description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 claims description 12
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 12
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 11
- 239000011258 core-shell material Substances 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 11
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- -1 polyethylene Polymers 0.000 claims description 7
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 6
- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 claims description 5
- 239000004793 Polystyrene Substances 0.000 claims description 5
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 5
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 5
- 239000003129 oil well Substances 0.000 claims description 5
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 5
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 5
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 4
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- 229920000578 graft copolymer Polymers 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- UICXTANXZJJIBC-UHFFFAOYSA-N 1-(1-hydroperoxycyclohexyl)peroxycyclohexan-1-ol Chemical compound C1CCCCC1(O)OOC1(OO)CCCCC1 UICXTANXZJJIBC-UHFFFAOYSA-N 0.000 claims description 3
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 claims description 3
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 3
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 229920002125 Sokalan® Polymers 0.000 claims description 3
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 3
- 229920001400 block copolymer Polymers 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000002715 modification method Methods 0.000 claims description 3
- 239000004584 polyacrylic acid Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 claims description 2
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 claims description 2
- 229920001328 Polyvinylidene chloride Polymers 0.000 claims description 2
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 claims description 2
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 claims description 2
- 150000001733 carboxylic acid esters Chemical group 0.000 claims description 2
- GEMHFKXPOCTAIP-UHFFFAOYSA-N n,n-dimethyl-n'-phenylcarbamimidoyl chloride Chemical compound CN(C)C(Cl)=NC1=CC=CC=C1 GEMHFKXPOCTAIP-UHFFFAOYSA-N 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- 229920005553 polystyrene-acrylate Polymers 0.000 claims description 2
- 239000005033 polyvinylidene chloride Substances 0.000 claims description 2
- 239000001294 propane Substances 0.000 claims description 2
- 239000003469 silicate cement Substances 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 229940014800 succinic anhydride Drugs 0.000 claims description 2
- WNWMJFBAIXMNOF-UHFFFAOYSA-N trimethyl(propyl)silane Chemical compound CCC[Si](C)(C)C WNWMJFBAIXMNOF-UHFFFAOYSA-N 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims 1
- 239000007787 solid Substances 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 4
- 238000012856 packing Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000002955 isolation Methods 0.000 abstract description 2
- 239000011435 rock Substances 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 10
- 239000003921 oil Substances 0.000 description 9
- 238000005553 drilling Methods 0.000 description 7
- 238000007711 solidification Methods 0.000 description 6
- 230000008023 solidification Effects 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 239000003513 alkali Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000003112 inhibitor Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000012669 compression test Methods 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 238000010125 resin casting Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000007853 buffer solution Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 125000002243 cyclohexanonyl group Chemical group *C1(*)C(=O)C(*)(*)C(*)(*)C(*)(*)C1(*)* 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- GYVGXEWAOAAJEU-UHFFFAOYSA-N n,n,4-trimethylaniline Chemical group CN(C)C1=CC=C(C)C=C1 GYVGXEWAOAAJEU-UHFFFAOYSA-N 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/52—Polycarboxylic acids or polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Polymers & Plastics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a liquid well cementation material and a preparation method thereof. The liquid well cementation material consists of a well cementation A agent, a well cementation B agent and cement, wherein the well cementation A agent comprises a flexible well cementation material, an anti-shrinkage agent, an adhesion agent and a coagulant; the well cementation agent B comprises a curing agent and a dissolving agent; the flexible cementing material is selected from dicyclopentadiene modified unsaturated polyesters, vinyl toluene, alpha-methyl styrene, vinyl phthalate, vinyl isophthalate, and vinyl terephthalate. The cementing agent is low-viscosity liquid at normal temperature, high-strength solid at high temperature, and adjustable in liquid curing temperature and time, has rigidity and toughness after curing, has better adhesion with steel or rock, and has acid-alkali salt resistance and corrosion resistance; the method can be used for solving engineering problems such as oil and gas well cementation, consolidating loose stratum, plugging and discarding operation, leakage repairing of equipment such as control pipelines and valves, extrusion repairing, gravel packing operation, oil and gas well cementation, temporary well isolation and other oil and gas field development fields, and has wide application prospects.
Description
Technical Field
The invention relates to a liquid well cementation material and a preparation method thereof, belonging to the field of oil and gas well cementation.
Background
The well cementation operation is a construction operation of putting a casing into a well and injecting cement into an annular space between a borehole and the casing in the petroleum and natural gas exploration and development drilling process, and is an important link indispensable in the well drilling and completion operation process, and the important purpose is to realize interval packing, prevent fluid between different layers from flowing through under the action of pressure difference, and support and protect the casing.
In the petroleum and natural gas exploration, development and drilling process, whether the oil gas exploitation is smooth and the exploitation time is long or short are determined by the quality of well cementation. Oil well cement is an important material to seal the casing and borehole wall annulus. Because wells are deep and shallow, underground has normal pressure and high temperature, and various chemical substances are contained in the stratum, the oil well cement is required to have wide adaptability. The blocking effect of annular cement paste on fluid and gas in stratum during well cementation directly relates to whether a well cementation cement sheath can effectively seal the stratum of different pressure systems, and directly relates to the quality of well cementation, if the interval sealing is poor, high-pressure layer fluid can flow into a low-pressure layer, so that oil and gas resources are lost and wasted, meanwhile, because of fluid channeling, poor cementation of a well cementation interface is caused, and great threat is caused to productivity and environmental protection.
Cement stones are brittle materials, are easily subjected to subsequent operations such as perforation, fracturing, exploitation and the like and complex acting forces of underground strata, and are easy to generate microcracks and micro annular gaps, so that the interval sealing failure between oil and gas wells is caused, and the oil and gas exploitation and the yield increase are not facilitated. Pure resin is distinguished by good fluidity, high compressive strength after solidification, small elastic modulus and extremely strong deformability, and the application of the pure resin in the well cementation industry has become a research hot spot in recent years, but the whole construction cost of the pure resin is very high, and the pure resin cannot be widely popularized and applied. Therefore, how to provide a liquid cementing material for an oil and gas well, which has low manufacturing cost and excellent plugging effect, is a technical problem to be solved in the field.
Disclosure of Invention
The invention aims to provide a liquid well cementation material which has the characteristic of controllable curing time under the temperature sensitive condition; and the cured material has the characteristics of high temperature and high pressure resistance, high mechanical strength and universality to various stratums, and can realize efficient well cementation.
The liquid well cementation material provided by the invention consists of a well cementation A agent, a well cementation B agent and cement;
the well cementing agent A comprises a flexible well cementing material, an anti-shrinkage agent, an adhesion agent and a setting modifier
The well cementation agent B comprises a curing agent and a dissolving agent;
the volume ratio of the well cementation A agent to the well cementation B agent is 10:0.8 to 1.2;
the mass ratio of the well cementation A agent to the cement is 10:3 to 5.
The flexible well cementation material is at least one of dicyclopentadiene modified unsaturated polyester, vinyl toluene, alpha-methyl styrene, vinyl phthalate, vinyl isophthalate and vinyl terephthalate;
the modification method of the dicyclopentadiene modified unsaturated polyester comprises the following steps:
1) Putting Dicyclopentadiene (DCPD), dihydric alcohol and part of dibasic acid into a reaction kettle, heating, preserving heat for 2-2.5 h at 140-145 ℃, then slowly raising the temperature to 190-195 ℃ and preserving heat until the acid value is less than 30mgKOH/g;
2) Cooling to 140-145 ℃, adding the rest dibasic acid, continuously heating to 190-195 ℃, preserving heat and esterifying, cooling to 140-145 ℃ when the acid value is less than 30mgKOH/g, adding hydroquinone, cooling to 90-95 ℃, adding styrene, cooling to 45-50 ℃, filtering and discharging.
Wherein the mol ratio of dicyclopentadiene, dihydric alcohol, dibasic acid, hydroquinone and styrene is 1:1 to 1.2:1.4 to 1.7:1.3 to 1.5:1.2 to 1.5;
the dibasic acid is at least one of phthalic anhydride, maleic anhydride and succinic anhydride;
the dihydric alcohol is at least one of ethylene glycol, diethylene glycol and butanediol;
the technical indexes of the dicyclopentadiene modified unsaturated polyester are as follows: the appearance is pale yellow transparent solution, and the color is less than 4 # The viscosity is 1800-2800 mPa.s at 25 ℃, the acid value is less than 30mgKOH/g, the thermal stability is not less than 24 hours at 80 ℃, and the gel time is 25-35 hours.
In the liquid well cementation material, the well cementation agent A comprises the following components in parts by mass:
40-60 parts of flexible well cementation material; 10-30 parts of an anti-shrinkage agent; 0.1-2 parts of adhesive; 0-1 part of coagulant, wherein the mass of the coagulant is not zero.
In the liquid well cementation material, the well cementation agent B comprises the following components in parts by mass:
0.01-10 parts of curing agent; 1-10 parts of a dissolving agent.
In the liquid well cementation material, the cement is at least one of G-grade oil well cement, portland cement and superfine cement.
In the liquid well cementation material, the shrinkage inhibitor is at least one of a grafted polymer, a core-shell polymer and an inorganic modified low-shrinkage additive;
the graft polymer can be at least one of polyethylene grafted polystyrene copolymer, polymethoxy benzamide-polyethylene glycol-cholesterol grafted copolymer and maleic anhydride-cholesterol ester-polymethyl methacrylate grafted copolymer;
the core-shell polymer can be at least one of polyacrylic acid/polymethyl methacrylate core-shell polymer, polyvinylidene chloride/polyunsaturated carboxylic ester core-shell polymer and polystyrene/polyacrylate core-shell polymer;
the inorganic modified low-shrinkage additive can be at least one of polymethacrylate-silicon dioxide-titanium dioxide multi-arm star hyperbranched block copolymer, polyacrylate-micron-sized silicon dioxide and polyacrylamide-2-acrylamide-2-methyl-sodium propane sulfonate-silica polymer;
the adhesive is at least one of vinyl trichloroorganosilane, gamma-chloropropyl trimethylsilane and gamma-glycidol propyl-trimethylsilane;
the coagulant is at least one of dimethylaniline, N-dimethyl-p-toluidine, acetylacetone and cobalt naphthenate.
In the liquid well cementation material, the curing agent is at least one of methyl ethyl ketone peroxide, cyclohexanone peroxide and benzoyl peroxide;
the solvent is at least one of toluene, cyclohexanone, ethanol and acetonitrile.
The invention also provides a preparation method of the liquid well cementation material, which comprises the following steps:
mixing the flexible well cementation material, the anti-shrinkage agent, the adhesion agent and the setting agent to obtain a well cementation agent A;
mixing the curing agent and the dissolving agent to obtain the well cementation B agent;
and adding the well cementation B agent into the well cementation A agent, and then adding the cement to obtain the liquid well cementation material.
The well drilling cementing agent provided by the invention is low-viscosity liquid at normal temperature and high-strength solid at high temperature, the solidification temperature and time of the liquid can be set according to requirements, and the well drilling cementing agent has rigidity and toughness after solidification, has better adhesiveness with steel or rock, and has acid-alkali salt resistance and corrosion resistance.
The liquid well cementation material provided by the invention not only can be applied to solving engineering problems such as oil and gas well cementation, but also has wide application prospects in the fields of oil and gas field development such as consolidation of loose stratum, plugging and discarding operation, leakage repair of equipment such as control pipelines and valves, extrusion operation repair, gravel packing operation, oil and gas well cementation, temporary well isolation and the like.
The compressive strength of the solidified body formed by solidifying the liquid well cementation material provided by the invention can reach 60-100 MPa, which is far greater than the strength of common well cementation cement.
Drawings
Fig. 1 is a physical diagram of the liquid cementing material prepared in example 1 of the present invention after curing.
Fig. 2 is a diagram showing the mass change of a sample after curing the liquid cementing material prepared in example 1 of the present invention under different acid-base environments.
Fig. 3 is a sample diagram obtained after mixing and curing the liquid cementing material prepared in example 1 of the present invention with sand.
Detailed Description
The experimental methods used in the following examples are conventional methods unless otherwise specified.
Materials, reagents and the like used in the examples described below are commercially available unless otherwise specified.
The invention provides a liquid well drilling and cementing material, which has the characteristic of controllable curing time under the temperature sensitive condition; and the cured material has the characteristics of high temperature resistance, high pressure resistance, high mechanical strength and universality for various stratums, and can realize high-efficiency plugging.
The liquid drilling well cementing agent provided by the invention can be used for blocking the porous leakage and the fractured leakage. Experimental results show that the compressive strength of the liquid well cementation material provided by the invention can reach 60-100 MPa after solidification, and is far greater than the cement strength, and the liquid well cementation material is not easy to leak again.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below in connection with specific embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1,
According to parts by weight, mixing and stirring 45 parts of flexible well cementing materials, 15 parts of anti-shrinkage agents, 0.1 part of adhesion agents and 0.1 part of setting agents uniformly to obtain a well cementing agent A, mixing and stirring 1 part of curing agents and 10 parts of dissolving agents uniformly to obtain a well cementing agent B, mixing A, B agents uniformly, adding 25 parts of G-grade oil well cement, and stirring to obtain the well cementing agent for well cementing operation. And (5) after 10 hours of sample retention test, curing is complete, and well cementation is completed. And (3) performing a compression test on the solidified sample, and referring to a GB/T2567-2008 resin casting performance test method, when pressure is applied to 65MPa, the sample is crushed, and the compression strength reaches 65MPa.
In this example, the flexible well cementing material is dicyclopentadiene modified unsaturated polyester, the shrinkage inhibitor is a polyethylene grafted polystyrene copolymer (molecular weight is about 50 w), the adhesion agent is vinyl trichloroorganosilane, the coagulant is dimethylaniline, the curing agent is methyl ethyl ketone peroxide, and the solvent is toluene.
In the liquid cementing material prepared in the embodiment, the volume ratio of the cementing A agent to the cementing B agent is 10:0.8.
the modification method of dicyclopentadiene modified unsaturated polyester in the embodiment comprises the following steps:
1) Putting Dicyclopentadiene (DCPD), ethylene glycol and 50% of maleic anhydride into a reaction kettle, heating, preserving heat for 2 hours at 140-145 ℃, and then slowly heating to 190 ℃ and preserving heat until the acid value is less than 30mgKOH/g;
2) Cooling to 145 ℃, adding the rest maleic anhydride, continuously heating to 190-195 ℃, preserving heat and esterifying, cooling to 140 ℃ when the acid value is less than 30mgKOH/g, adding hydroquinone, cooling to 90 ℃, adding styrene, cooling to 50 ℃, filtering and discharging; wherein, the mol ratio of dicyclopentadiene, glycol, maleic anhydride, hydroquinone and styrene is 1:1.1:1.5:1.4:1.3.
the technical index of dicyclopentadiene modified unsaturated polyester adopted in the embodiment is as follows: the appearance is pale yellow transparent solution, and the color is less than 4 # The viscosity is 1800-2800 mPa.s at 25 ℃, the acid value is less than 30mgKOH/g, the thermal stability is not less than 24 hours at 80 ℃, and the gel time is not less than 30 hours.
EXAMPLE 2,
According to parts by weight, 50 parts of flexible well cementing materials, 20 parts of anti-shrinkage agents, 0.5 part of adhesion agents and 0.4 part of setting agents are mixed and stirred uniformly to obtain a well cementing agent A, 1 part of curing agents and 10 parts of dissolving agents are mixed and stirred uniformly to obtain a well cementing agent B, A, B agents are mixed uniformly, and 30 parts of superfine cement is added and stirred to obtain the well cementing agent for well cementing operation. After 5 hours of sample retention test, the solidification is complete, the well cementation is completed, the compression test is carried out on the solidified sample, and when the pressure is applied to 70MPa, the sample is crushed and the compression strength reaches 70MPa by referring to the GB/T2567-2008 resin casting body performance test method.
In the embodiment, the flexible well cementation material is vinyl toluene, the shrinkage inhibitor is polyacrylic acid/polymethyl methacrylate core-shell polymer (the molecular weight is about 70 w), the adhesion agent is gamma-chloropropyl trimethylsilane, the coagulant is N, N-dimethylaniline, the curing agent is cyclohexanone peroxide, and the dissolvent is cyclohexanone.
In the liquid cementing material prepared in the embodiment, the volume ratio of the cementing A agent to the cementing B agent is 10:1.
EXAMPLE 3,
According to parts by weight, mixing and stirring 60 parts of flexible well cementing materials, 25 parts of shrinkage resistance agents, 0.7 part of adhesion agents and 0.5 part of setting agents uniformly to obtain a well cementing agent A, mixing and stirring 1 part of curing agents and 10 parts of dissolving agents uniformly to obtain a well cementing agent B, mixing A, B agents uniformly, adding 40 parts of silicate cement and stirring to obtain the well cementing agent for well cementing operation. After 1 hour of sample retention test, the solidification is complete, the well cementation is completed, the compression test is carried out on the solidified sample, and when the pressure is applied to 75MPa, the sample is crushed and the compression strength reaches 75MPa by referring to the GB/T2567-2008 resin casting body performance test method.
In the embodiment, the flexible well cementing material is vinyl phthalate, the shrinkage inhibitor is polymethacrylate-silicon dioxide-titanium dioxide multi-arm star hyperbranched block copolymer (the molecular weight is about 100 w), the adhesion agent is gamma-glycidyl-trimethylsilane, the coagulant is N, N-dimethyl-p-toluidine, the curing agent is benzoyl peroxide, and the solvent is acetonitrile.
In the liquid cementing material prepared in the embodiment, the volume ratio of the cementing A agent to the cementing B agent is 10:1.2.
as can be seen from the above examples 1-3, the cementing material provided by the invention can adjust the curing time by controlling the volume and the addition amount of the agent B, and under the condition that the volume of the agent A is constant, the more the addition amount of the agent B is, the shorter the curing time is needed to cope with different well conditions.
Fig. 1 is a physical diagram of the liquid cementing material prepared in example 1 of the present invention after curing, which is used as an acid and alkali resistant test sample. An acid/alkali buffer system with pH value of 2, 4, 6, 8 and 10 is prepared, the solid sample is added into the acid/alkali buffer system for soaking to perform an acid/alkali resistance test, and fig. 2 shows the quality change of the solid sample in an experiment, so that the cementing material provided by the invention has certain acid and alkali resistance, the quality is slightly increased three days before the soaking process, the solid sample hardly changes after the soaking process, the solidified body is tightly combined, and the appearance is unchanged.
Fig. 3 shows a cured sample of the liquid cementing material prepared in example 1 of the present invention mixed with sand, which is shown to have excellent adhesion with sand and good adhesion.
Under the action of the temperature in the well and the curing agent, the well cementation material provided by the invention is subjected to chemical curing reaction in the casing and the well bore to form a high-strength consolidated body, so that well cementation is completed, and the bearing capacity is improved.
The foregoing description of the preferred embodiments of the present invention is not intended to limit the scope of the invention, and other modifications and variations may be made by those skilled in the art in light of the above teachings. It should be noted that modifications or variations will be apparent to those skilled in the art without departing from the principles of the present invention.
Claims (3)
1. A liquid well cementation material consists of a well cementation A agent, a well cementation B agent and cement;
the well cementation agent A comprises a flexible well cementation material, an anti-shrinkage agent, an adhesion agent and a coagulant;
the well cementation agent B comprises a curing agent and a dissolving agent;
the volume ratio of the well cementation A agent to the well cementation B agent is 10:0.8 to 1.2;
the well cementation agent A comprises the following components in parts by mass:
40-60 parts of flexible well cementation material; 10-30 parts of an anti-shrinkage agent; 0.1-2 parts of adhesive; 0-1 part of coagulant, wherein the mass of the coagulant is not zero;
the well cementation agent B comprises the following components in parts by mass:
0.01-10 parts of curing agent; 1-10 parts of a dissolving agent;
the cement is at least one of G-grade oil well cement, silicate cement and superfine cement;
the flexible well cementation material is at least one of dicyclopentadiene modified unsaturated polyester, vinyl toluene, alpha-methyl styrene, vinyl phthalate, vinyl isophthalate and vinyl terephthalate;
the modification method of the dicyclopentadiene modified unsaturated polyester comprises the following steps:
1) Putting dicyclopentadiene, dihydric alcohol and part of dibasic acid into a reaction kettle, heating, preserving heat for 2-2.5 h at 140-145 ℃, then slowly rising to 190-195 ℃ and preserving heat until the acid value is less than 30mgKOH/g;
2) Cooling to 140-145 ℃, adding the rest dibasic acid, continuously heating to 190-195 ℃, preserving heat and esterifying, cooling to 140-145 ℃ when the acid value is less than 30mgKOH/g, adding hydroquinone, cooling to 90-95 ℃, adding styrene, cooling to 45-50 ℃, filtering and discharging;
wherein the mol ratio of dicyclopentadiene, dihydric alcohol, dibasic acid, hydroquinone and styrene is 1:1 to 1.2:1.4 to 1.7:1.3 to 1.5:1.2 to 1.5;
the dibasic acid is at least one of phthalic anhydride, maleic anhydride and succinic anhydride;
the dihydric alcohol is at least one of ethylene glycol, diethylene glycol and butanediol;
the anti-shrinkage agent is at least one of a grafted polymer, a core-shell polymer and an inorganic modified low-shrinkage additive;
the graft polymer is at least one of a polyethylene grafted polystyrene copolymer, a polymethoxy benzamide-polyethylene glycol-cholesterol grafted copolymer and a maleic anhydride-cholesterol ester-polymethyl methacrylate grafted copolymer;
the core-shell polymer is at least one of polyacrylic acid/polymethyl methacrylate core-shell polymer, polyvinylidene chloride/polyunsaturated carboxylic ester core-shell polymer and polystyrene/polyacrylate core-shell polymer;
the inorganic modified low-shrinkage additive is at least one of polymethacrylate-silicon dioxide-titanium dioxide multi-arm star hyperbranched block copolymer, polyacrylate-micron-sized silicon dioxide and polyacrylamide-2-acrylamide-2-methyl-sodium propane sulfonate-silica polymer;
the adhesive is at least one of vinyl trichloroorganosilane, Y-chloropropyl trimethylsilane and Y-glycidol propyl-trimethylsilane;
the coagulant is at least one of dimethylaniline, N-dimethyl-p-toluidine, acetylacetone and cobalt naphthenate;
the curing agent is at least one of methyl ethyl ketone peroxide, cyclohexanone peroxide and benzoyl peroxide;
the solvent is at least one of toluene, cyclohexanone, ethanol and acetonitrile.
2. The method for preparing the liquid cementing material of claim 1, comprising the steps of:
mixing the flexible well cementation material, the anti-shrinkage agent, the adhesion agent and the setting agent to obtain a well cementation agent A;
mixing the curing agent and the dissolving agent to obtain the well cementation B agent;
and adding the well cementation B agent into the well cementation A agent, and then adding the cement to obtain the liquid well cementation material.
3. Use of the liquid cementing material of claim 1 in cementing.
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-
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| Title |
|---|
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