CN113621353A - Resin plugging agent and preparation method thereof - Google Patents
Resin plugging agent and preparation method thereof Download PDFInfo
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- CN113621353A CN113621353A CN202111087472.1A CN202111087472A CN113621353A CN 113621353 A CN113621353 A CN 113621353A CN 202111087472 A CN202111087472 A CN 202111087472A CN 113621353 A CN113621353 A CN 113621353A
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- 229920005989 resin Polymers 0.000 title claims abstract description 20
- 239000011347 resin Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 57
- 239000002981 blocking agent Substances 0.000 claims abstract description 16
- 239000007822 coupling agent Substances 0.000 claims abstract description 12
- 229910010272 inorganic material Inorganic materials 0.000 claims abstract description 11
- 239000011147 inorganic material Substances 0.000 claims abstract description 11
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 10
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 claims abstract description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229920000768 polyamine Polymers 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 6
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 5
- 239000011324 bead Substances 0.000 claims abstract description 5
- 239000011521 glass Substances 0.000 claims abstract description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 5
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 3
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 3
- 239000004952 Polyamide Substances 0.000 claims abstract description 3
- 125000002723 alicyclic group Chemical group 0.000 claims abstract description 3
- 125000001931 aliphatic group Chemical class 0.000 claims abstract description 3
- 229920000180 alkyd Polymers 0.000 claims abstract description 3
- 150000001412 amines Chemical class 0.000 claims abstract description 3
- 229920003180 amino resin Polymers 0.000 claims abstract description 3
- 239000003822 epoxy resin Substances 0.000 claims abstract description 3
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 3
- 239000005011 phenolic resin Substances 0.000 claims abstract description 3
- 229920002647 polyamide Polymers 0.000 claims abstract description 3
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 3
- 229920001225 polyester resin Polymers 0.000 claims abstract description 3
- 239000004645 polyester resin Substances 0.000 claims abstract description 3
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 3
- 150000003512 tertiary amines Chemical class 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000003607 modifier Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 239000012530 fluid Substances 0.000 description 9
- 238000005553 drilling Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229920002050 silicone resin Polymers 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000011837 pasties Nutrition 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000000887 hydrating effect Effects 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Images
Classifications
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- 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
- C09K8/03—Specific additives for general use in well-drilling compositions
-
- 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
- C09K8/426—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells for plugging
-
- 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
- C09K8/44—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing organic binders only
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a resin blocking agent and a preparation method thereof, and the blocking agent comprises 40-80 parts of a main agent, 10-30 parts of a curing agent, 4-6 parts of a density regulator, 0.1-5 parts of an accelerator, 1-8 parts of a hard inorganic material and 0.5-3 parts of a coupling agent. The main agent is one or a combination of more of phenolic resin, alkyd resin, amino resin, polyester resin, epoxy resin, polyurethane resin and acrylic resin; the curing agent is one or the combination of more of modified amine, aliphatic polyamine, alicyclic polyamine, low molecular polyamide and tertiary amine; the density regulator is hollow glass beads; the accelerant is one of sodium carbonate and barium carbonate; the hard inorganic material is alumina powder; the coupling agent is a silane coupling agent KH 570. The invention has the characteristics of good plugging effect, high adhesion strength, high compressive strength and strong temperature resistance, and simultaneously, the preparation method is simple, and the raw materials are easy to degrade and have no pollution.
Description
Technical Field
The invention belongs to the field of chemical plugging of a shaft of an oil and gas field, and particularly relates to a resin plugging agent and a preparation method thereof.
Background
Fracturing techniques in the exploration and development of oil and gas fields have increasingly played an irreplaceable role since their application. Fracturing refers to artificially cracking an oil-gas layer under the action of high-pressure gas or high-pressure liquid, and improving the flowing environment of oil gas in the stratum, so that the yield of an oil-gas well is increased. Before fracturing construction, the whole well barrel is required to be tested, the integrity of the well barrel is ensured, and perforation and fracturing procedures can be carried out. However, some wells are often tested at wellbore pressure: (1) when the pressure is tested to be lower than 30MPa, the pressure is qualified; when the pressure is greater than 30MPa or greater than 50MPa, leakage of different degrees occurs, namely the pressure test is unqualified, which indicates that a leakage point exists in the casing; (2) and the whole shaft is qualified in pressure test in the early stage, perforation and fracturing are carried out, and leakage points appear in the upper shaft in the fracturing process. Both of these events occur and fracturing can no longer be continued. Once a leak point is generated, particularly above a horizontal section, if high-pressure hydraulic fracturing is carried out again, ineffective fracturing is caused, namely fracturing fluid, propping agent and the like do not enter a specified interval according to the design, but enter the stratum from the leak point. If the upper casing has poor cementing quality, high-pressure fluid is likely to flow upwards in the fracturing process, so that the problems of well control such as well mouth pressure and the like are caused. Even more dangerous is the risk of contaminating the freshwater layer if the leak is shallow, in the freshwater layer. Therefore, wellbore integrity is important throughout the exploration and development of an oil and gas field.
Patent CN109233757B discloses a methyl silicone resin polymer as a plugging agent for drilling fluid and a preparation method thereof, wherein the methyl silicone resin polymer is prepared from the following raw materials: deionized water, acrylamide, methyl silicone resin, a coupling agent and a thickening agent. The coupling agent is a chelating titanate coupling agent, is suitable for various resin-based composite material systems, and is particularly suitable for aqueous polymer systems due to good hydrolytic stability. Patent CN105462568B discloses a resin nanoparticle latex plugging agent for drilling fluid, which is composed of the following raw materials in parts by weight: an alkenylbenzene 20; acrylate 15; acrylic acid 1; a hard inorganic material 10; wherein the mass ratio of the short-chain monomer to the long-chain monomer in the acrylate monomer is 3: 1; the plugging agent is a composite product of inorganic materials and organic materials, has the advantages of combination of hardness and softness, higher plugging rate, wide particle size distribution and wider application range, basically does not influence the rheological property of drilling fluid after being added into the drilling fluid, and can obviously improve the plugging capability of the drilling fluid and reduce the filtration loss of the drilling fluid. Although the two patents propose methods for preparing the blocking agent by using resin as a raw material, the two patents respectively have the defects of insufficient compressive strength, strong alkalinity of the raw material and difficult degradation.
At present, the integrity of a shaft is treated by mainly adopting a cement plugging system for plugging, and in recent years, similar chemical plugging methods such as gel and chemical cement exist, but most of the plugging methods have low bearing pressure or the leakage occurs again at a raw leakage point in the fracturing process. Overall, the success rate of high pressure bearing after occlusion is still low. Therefore, the resin plugging agent and the preparation method thereof have the characteristics of good plugging effect, high adhesion strength, high compressive strength and high temperature resistance, and provide a new idea for the preparation of a shaft plugging material and the application of the resin plugging agent.
Disclosure of Invention
The invention aims to provide a resin plugging agent for realizing effective plugging of a leakage point of a shaft.
Based on the above purposes, the invention provides a resin plugging agent and a preparation method thereof, and the resin plugging agent has the characteristics of good plugging effect, high adhesion strength, high compressive strength and strong temperature resistance.
On one hand, the invention relates to a resin blocking agent, which comprises 40-80 parts by mass of a main agent, 10-30 parts by mass of a curing agent, 4-6 parts by mass of a density regulator, 0.1-5 parts by mass of an accelerator, 1-8 parts by mass of a hard inorganic material and 0.5-3 parts by mass of a coupling agent; preferably, the blocking agent comprises, by mass, 56-70 parts of a main agent, 15-20 parts of a curing agent, 5-5.5 parts of a density regulator, 2-3 parts of an accelerator, 4.5-6 parts of a hard inorganic material and 1-2 parts of a coupling agent.
Further, the main agent in the blocking agent is one or a combination of more of phenolic resin, alkyd resin, amino resin, polyester resin, epoxy resin, polyurethane resin and acrylic resin.
Further, the curing agent in the blocking agent is one or a combination of more of modified amine, aliphatic polyamine, alicyclic polyamine, low molecular polyamide and tertiary amine.
Further, the density regulator in the plugging agent is hollow glass beads; particularly, the density of the hollow glass beads is 0.5-0.6 g/cm3。
Furthermore, the accelerator in the blocking agent is one of sodium carbonate and barium carbonate.
Further, the hard inorganic material in the plugging agent is alumina powder; particularly, the particle size of the alumina powder is 180 to 200 meshes.
Further, the coupling agent in the blocking agent is a silane coupling agent KH 570.
In another aspect, the present invention relates to a method for preparing the resin blocking agent, which comprises the following steps:
(1) adding 40-80 parts of main agent and water into a reaction kettle according to the mass ratio of 1:2, heating to 150-200 ℃, and fully stirring until no blocky object exists;
(2) adding 4-6 parts of density regulator into the pasty substance obtained in the step (1), and sequentially adding 0.5-3 parts of silane coupling agent KH570 and 1-8 parts of alumina powder (180-200 meshes) under the stirring condition;
(3) and after stirring and reacting for 30-60 min, adding 10-30 parts of curing agent and 2-3 parts of 30% sodium carbonate solution or 30% barium carbonate solution, and stirring for 10-30 min at 60-100 ℃ to obtain the plugging agent.
Compared with the prior art, the invention has the following beneficial effects or advantages:
compared with the prior art, the main contribution of the invention is to provide the resin plugging agent and the preparation method thereof. The performance test and the shaft plugging test show that the plugging agent has the characteristics of good plugging effect, high adhesion strength, high compressive strength and strong temperature resistance, and meanwhile, the preparation method is simple, and raw materials are easy to degrade and have no pollution.
Drawings
FIG. 1 is a graph showing the plugging effect of a resin-based plugging agent.
Detailed Description
The following examples are given to illustrate the technical aspects of the present invention, but the present invention is not limited to the following examples.
Example 1
This example provides a preparation of a resin blocking agent and blocking effect.
Adding a main agent and water into a reaction kettle according to the mass ratio of 1:2, heating to 150-200 ℃, and fully stirring until no blocky object exists; adding a density regulator into the obtained pasty substance, and sequentially adding a silane coupling agent KH570 and alumina powder (180-200 meshes) under the stirring condition; and after stirring and reacting for 30-60 min, adding a curing agent and a 30% sodium carbonate solution or a 30% barium carbonate solution, and stirring for 10-30 min at 60-100 ℃ to obtain the plugging agent. The resin plugging agent comprises the raw materials in parts by mass shown in Table 1.
TABLE 1 resin blocking agent Components and parts by weight
Preparing 4% high-quality bentonite-based slurry, adding 3% of the plugging agent after pre-hydrating for 24h, fully stirring, aging for 16h at the temperature of 100 ℃, and then performing micro-crack plugging evaluation by using a high-temperature high-pressure plugging instrument. Under the condition that the experimental differential pressure is 3.5MPa, the total filtration loss of the plugging agent consisting of the components at 160 ℃ for different times is respectively measured. The results are shown in FIG. 1, using emulsified bitumen as the control.
As can be seen from figure 1, the water-based drilling fluid added with the plugging agent has similar capability of plugging 20 mu m microcracks under the experimental pressure difference of 3.5MPa and the temperature of 160 ℃. When the temperature is 160 ℃, the filtration rate (namely the filtration loss per unit time) is reduced along with the increase of time, and the filtration loss is small in 30min, which shows that the plugging effect is still realized.
Example 2
This example provides the practical application of a resin blocking agent.
The actual constitution of the resinous blocking agent used in this example was the same as that of test group 3 in example 1. To the direction ofExtruding 4-15 m into a well section of an oil well target3The plugging agent forms a rigid solidified body with micro-expansion, good cementation and impact resistance under the stratum condition for 0.5-3 h, and realizes high-strength plugging of a target well section. In the field construction process of the plugging agent, the highest pressure bearing is 70MPa after plugging, the pressure test is carried out for 30min, the pressure drop is less than 0.5MPa, the pressure test is qualified, no leakage occurs in the subsequent fracturing process, and the subsequent fracturing construction is smoothly completed.
The specific construction cases are as follows:
(1) the pressure test is unqualified before the fracturing of the A-1 well, the pressure test is 50MPa after plugging, the pressure test is 30min, the pressure drop is 0.3MPa, the subsequent 4-stage fracturing is smoothly completed, and the highest pressure reaches 55MPa during fracturing without leakage.
(2) The pressure test is unqualified before the A-2 well is fractured, the pressure test is 70MPa after plugging, the pressure test is 30min, the pressure drop is 0.4MPa, the subsequent 15-stage fracturing is smoothly completed, and the highest pressure during fracturing reaches 70MPa and no leakage occurs.
As described above, the present invention can be preferably implemented, and the above-mentioned embodiments only describe the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various changes and modifications of the technical solution of the present invention made by those skilled in the art without departing from the design spirit of the present invention shall fall within the protection scope defined by the present invention.
Claims (9)
1. The resin blocking agent is characterized by comprising, by mass, 40-80 parts of a main agent, 10-30 parts of a curing agent, 4-6 parts of a density regulator, 0.1-5 parts of an accelerator, 1-8 parts of a hard inorganic material and 0.5-3 parts of a coupling agent.
2. The plugging agent according to claim 1, wherein the plugging agent comprises, by mass, 56-70 parts of a main agent, 15-20 parts of a curing agent, 5-5.5 parts of a density regulator, 2-3 parts of an accelerator, 4.5-6 parts of a hard inorganic material, and 1-2 parts of a coupling agent.
3. The plugging agent of claim 1, wherein the primary agent is one or more of phenolic resin, alkyd resin, amino resin, polyester resin, epoxy resin, polyurethane resin, and acrylic resin.
4. The blocking agent according to claim 1, wherein the curing agent is a combination of one or more of modified amines, aliphatic polyamines, alicyclic polyamines, low molecular polyamides, and tertiary amines.
5. The plugging agent according to claim 1, wherein the density modifier is hollow glass beads, and the density of the hollow glass beads is 0.5-0.6 g/cm3。
6. The plugging agent of claim 1, wherein the accelerator is one of sodium carbonate and barium carbonate.
7. The plugging agent according to claim 1, wherein the hard inorganic material is alumina powder having a particle size of 180 to 200 mesh.
8. The plugging agent according to claim 1, wherein the coupling agent is a silane coupling agent KH 570.
9. The plugging agent of any one of claims 1 to 8, wherein the preparation process of the plugging agent comprises the following steps:
(1) mixing a main agent and water according to a mass ratio of 1:2, heating to 150-200 ℃, and fully and uniformly stirring;
(2) after the main agent is completely melted, adding a density regulator, and sequentially adding a coupling agent and a hard inorganic material under the stirring condition;
(3) and after stirring and reacting for 30-60 min, adding a curing agent and an accelerator, and stirring for 10-30 min at the temperature of 60-100 ℃ to obtain the plugging agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111087472.1A CN113621353A (en) | 2021-09-16 | 2021-09-16 | Resin plugging agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111087472.1A CN113621353A (en) | 2021-09-16 | 2021-09-16 | Resin plugging agent and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113943486A (en) * | 2021-10-26 | 2022-01-18 | 杭州博源电力设备有限公司 | Cable plugging material and preparation method thereof |
| CN114395378A (en) * | 2022-01-24 | 2022-04-26 | 西南石油大学 | Synthesis of high-temperature-resistant modified nano-alumina plugging agent and oil-based drilling fluid |
| CN114989794A (en) * | 2021-12-29 | 2022-09-02 | 中国石油天然气集团有限公司 | High-thixotropy high-toughness organic curing leaking stoppage material, organic curing leaking stoppage slurry, and preparation method and application thereof |
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| US20020164485A1 (en) * | 2001-02-26 | 2002-11-07 | Martin Laura Lee | Structural modified epoxy adhesive compositions |
| CN103422834A (en) * | 2013-07-15 | 2013-12-04 | 中国石油天然气股份有限公司 | Oil well plugging agent and application thereof |
| CN110003864A (en) * | 2019-04-03 | 2019-07-12 | 新疆格瑞迪斯石油技术股份有限公司 | Leak stopping sealing agent and preparation method thereof in a kind of drilling fluid |
| CN110105932A (en) * | 2019-04-19 | 2019-08-09 | 中国石油天然气股份有限公司 | Resin material for plugging oil-gas well casing and preparation method thereof |
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2021
- 2021-09-16 CN CN202111087472.1A patent/CN113621353A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020164485A1 (en) * | 2001-02-26 | 2002-11-07 | Martin Laura Lee | Structural modified epoxy adhesive compositions |
| CN103422834A (en) * | 2013-07-15 | 2013-12-04 | 中国石油天然气股份有限公司 | Oil well plugging agent and application thereof |
| CN110003864A (en) * | 2019-04-03 | 2019-07-12 | 新疆格瑞迪斯石油技术股份有限公司 | Leak stopping sealing agent and preparation method thereof in a kind of drilling fluid |
| CN110105932A (en) * | 2019-04-19 | 2019-08-09 | 中国石油天然气股份有限公司 | Resin material for plugging oil-gas well casing and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113943486A (en) * | 2021-10-26 | 2022-01-18 | 杭州博源电力设备有限公司 | Cable plugging material and preparation method thereof |
| CN114989794A (en) * | 2021-12-29 | 2022-09-02 | 中国石油天然气集团有限公司 | High-thixotropy high-toughness organic curing leaking stoppage material, organic curing leaking stoppage slurry, and preparation method and application thereof |
| CN114989794B (en) * | 2021-12-29 | 2023-08-15 | 中国石油天然气集团有限公司 | High-thixotropic high-toughness organic curing plugging material, organic curing plugging slurry, and preparation methods and applications thereof |
| CN114395378A (en) * | 2022-01-24 | 2022-04-26 | 西南石油大学 | Synthesis of high-temperature-resistant modified nano-alumina plugging agent and oil-based drilling fluid |
| CN114395378B (en) * | 2022-01-24 | 2023-01-31 | 西南石油大学 | Synthesis of high-temperature-resistant modified nano-alumina plugging agent and oil-based drilling fluid |
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