CN114456796A - Polymer type acidic slickwater, and preparation method and application thereof - Google Patents
Polymer type acidic slickwater, and preparation method and application thereof Download PDFInfo
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- CN114456796A CN114456796A CN202210098039.6A CN202210098039A CN114456796A CN 114456796 A CN114456796 A CN 114456796A CN 202210098039 A CN202210098039 A CN 202210098039A CN 114456796 A CN114456796 A CN 114456796A
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- slickwater
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- 230000002378 acidificating effect Effects 0.000 title claims abstract description 22
- 229920000642 polymer Polymers 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000002253 acid Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000654 additive Substances 0.000 claims abstract description 8
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 8
- 239000004927 clay Substances 0.000 claims abstract description 8
- 239000003381 stabilizer Substances 0.000 claims abstract description 8
- 230000000996 additive effect Effects 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 10
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 8
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 8
- 125000000129 anionic group Chemical group 0.000 claims description 7
- 229920002401 polyacrylamide Polymers 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 5
- 239000001103 potassium chloride Substances 0.000 claims description 5
- 235000011164 potassium chloride Nutrition 0.000 claims description 5
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 5
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 5
- 235000019270 ammonium chloride Nutrition 0.000 claims description 4
- IVKNZCBNXPYYKL-UHFFFAOYSA-N 2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[4-(2,4,4-trimethylpentan-2-yl)phenoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol Chemical compound CC(C)(C)CC(C)(C)C1=CC=C(OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO)C=C1 IVKNZCBNXPYYKL-UHFFFAOYSA-N 0.000 claims description 3
- 239000001763 2-hydroxyethyl(trimethyl)azanium Substances 0.000 claims description 3
- 235000019743 Choline chloride Nutrition 0.000 claims description 3
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 3
- SGMZJAMFUVOLNK-UHFFFAOYSA-M choline chloride Chemical compound [Cl-].C[N+](C)(C)CCO SGMZJAMFUVOLNK-UHFFFAOYSA-M 0.000 claims description 3
- 229960003178 choline chloride Drugs 0.000 claims description 3
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 238000009736 wetting Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 230000000638 stimulation Effects 0.000 claims 1
- 238000012986 modification Methods 0.000 abstract description 4
- 230000004048 modification Effects 0.000 abstract description 4
- 229910001748 carbonate mineral Inorganic materials 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005530 etching Methods 0.000 abstract description 2
- 239000004576 sand Substances 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract description 2
- 238000011156 evaluation Methods 0.000 description 15
- 239000012530 fluid Substances 0.000 description 13
- 239000000203 mixture Substances 0.000 description 7
- 238000005303 weighing Methods 0.000 description 5
- 238000009933 burial Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000009897 systematic effect Effects 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/72—Eroding chemicals, e.g. acids
- C09K8/74—Eroding chemicals, e.g. acids combined with additives added for specific purposes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
- C09K8/604—Polymeric surfactants
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/66—Compositions based on water or polar solvents
- C09K8/68—Compositions based on water or polar solvents containing organic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/72—Eroding chemicals, e.g. acids
- C09K8/725—Compositions containing polymers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/267—Methods for stimulating production by forming crevices or fractures reinforcing fractures by propping
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/27—Methods for stimulating production by forming crevices or fractures by use of eroding chemicals, e.g. acids
-
- 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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/12—Swell inhibition, i.e. using additives to drilling or well treatment fluids for inhibiting clay or shale swelling or disintegrating
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geochemistry & Mineralogy (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Lubricants (AREA)
Abstract
The invention relates to the technical field of oil and gas field reservoir transformation, in particular to a polymer type acidic slickwater, a preparation method and application thereof, wherein the polymer type acidic slickwater comprises the following raw materials in percentage by mass: 0.1 to 7.5 percent of acid, 0.05 to 0.2 percent of acid-resistant resistance-reducing agent, 0.05 to 0.5 percent of cleanup additive, 0.05 to 0.5 percent of clay stabilizer and the balance of water. The polymer type acidic slickwater provided by the invention adopts low-concentration hydrochloric acid to dissolve part of carbonate minerals on the surface of a crack, forms a non-uniform etching form on the wall surface of the crack, enhances the flow conductivity of the crack, and can effectively convey a propping agent to the far end of the crack due to certain viscosity of the slickwater, further increases the flow conductivity of the crack, and improves the fracturing modification effect on a reservoir stratum. The preparation method is simple and low in cost, and the prepared polymer type acidic slickwater has small damage, easy flowback and strong sand carrying capacity on the reservoir of carbonate minerals, and effectively realizes the exploitation and yield increase of the reservoir of the oil and gas field.
Description
The application is a divisional application with the application date of 2016, 11 and 02, the application number of 201610943758.8, and the name of 'a polymer type acidic slickwater and a preparation method thereof'.
Technical Field
The invention relates to the technical field of oil and gas field reservoir transformation, in particular to a polymer type acidic slickwater and a preparation method and application thereof.
Background
Shale gas fracturing is still in an exploration stage in China, slickwater fracturing fluid used in the initial stage is mainly a technology provided by foreign oil service companies, domestic slickwater fracturing fluid systems with excellent performance are reported less, and particularly additives such as resistance reducing agents, clay stabilizers and surfactants suitable for shale gas fracturing are just started to be researched and evaluated.
However, the slickwater fracturing fluid system provided by foreign companies is developed mainly aiming at fracturing of shale gas reservoirs with shallow American burial, has poor adaptability to fracturing of shale gas reservoirs directly applied to China, and firstly, has less research on adaptability to domestic strata, and can be used without harm to the strata no matter what additive is added; secondly, the shale gas is relatively shallow in burial abroad, fracturing equipment is advanced, the friction loss of the tubular column is less concerned, the shale gas is deeply buried in China, the friction loss of the tubular column is very large, and the friction resistance reducing performance of slickwater fracturing fluid has larger influence on fracturing; in addition, the cost of foreign liquid materials is quite high, and the comprehensive fracturing cost is increased. Therefore, systematic research of a slickwater fracturing fluid system needs to be carried out aiming at key areas of the shale gas reservoir in China.
The currently used slickwater fracturing fluid system in domestic field also has the problems of low drag reduction rate, surface activity deviation, low sand carrying ratio, poor compatibility with a target reservoir, large adsorption capacity of a high polymer additive in a stratum to cause large damage and the like, and the high-drag reduction rate slickwater fracturing fluid system with good adaptability and compatibility for different shale gas reservoirs needs to be developed, so that on the premise of the same operation scale, the dosage of the drag reduction agent is reduced, the field is quickly prepared, and the cost of the slickwater fracturing fluid is reduced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the polymer type acidic slickwater and the preparation method thereof.
The purpose of the invention is realized by the following technical scheme:
a polymer type acidic slickwater is prepared from the following raw materials in percentage by mass:
0.1 to 7.5 percent of hydrochloric acid,
0.05 to 0.2 percent of acid-resistant resistance-reducing agent,
0.05 to 0.5 percent of discharge assistant agent,
0.05 to 0.5 percent of clay stabilizer,
the balance of water;
the acid-resistant resistance-reducing agent is anionic polyacrylamide;
the cleanup additive is at least one of fluorocarbon, OP-10, sodium dodecyl benzene sulfonate, propanol and isopropanol;
the clay stabilizer is at least one of potassium chloride, ammonium chloride, choline chloride and hexadecyl trimethyl ammonium chloride.
Further, the drag reduction of the polymeric acid slickwater is 70-80%.
Further, the surface tension of the polymeric acidic slickwater is lower than 25mN/m, the interfacial tension is lower than 2mN/m, and the wetting angle is 75-90 degrees.
The invention also provides a preparation method of the polymer type acid slickwater, which comprises the following steps: and sequentially adding hydrochloric acid, the acid-resistant resistance-reducing agent, the cleanup additive and the clay stabilizer into water, and uniformly mixing and stirring to obtain the polymer type acidic slickwater.
The invention also provides application of the polymer type acid slickwater, which is used for production increase of oil and gas field reservoirs.
The invention has the beneficial effects that: on one hand, the polymer type acidic slickwater adopts low-concentration hydrochloric acid to dissolve part of carbonate minerals on the surface of a crack, forms a non-uniform etching form on the wall surface of the crack, and enhances the flow conductivity of the crack. On the other hand, the polymer type acid slickwater has certain viscosity, can effectively convey a propping agent to the far end of a crack, further increases the flow conductivity of the crack, and improves the fracturing modification effect on a reservoir stratum.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the following specific examples, but the scope of the present invention is not limited to the following.
Example 1
A polymer-type acidic water slick is prepared through weighing 94.65% water, adding 5% hydrochloric acid, slowly adding 0.15% anionic polyacrylamide, stirring for 5min, sequentially adding 0.1% mixture of fluorocarbon and isopropanol, and 0.1% mixture of choline chloride and ammonium chloride.
Performance evaluation:
table 1 evaluation of performance of acid slickwater fracturing fluids
| Evaluating content | HCl concentration | Viscosity mPa.s | Resistance reduction rate | Surface tension mN/m | Contact angle ° |
| Evaluation results | 5％ | 3.3 | 71.20％ | 24.1 | 81 |
Example 2
A polymer-type acidic slickwater is prepared through weighing 96% of water, adding 7% of hydrochloric acid, slowly adding 0.2% of anionic polyacrylamide, stirring for 10min, and sequentially adding 0.5% of OP-10 and isopropanol mixture and 0.3% of hexadecyltrimethylammonium chloride and ammonium chloride mixture.
Performance evaluation:
TABLE 2 evaluation of acidic slickwater fracturing fluids
| Evaluating content | HCl concentration | Viscosity mPa.s | Resistance reduction rate | Surface tension mN/m | Contact angle ° |
| Evaluation results | 7％ | 3.1 | 73.50％ | 23.4 | 79 |
Example 3
A polymer-type acidic water slick is prepared through weighing 96.05% of water, adding 3% of hydrochloric acid, slowly adding 0.1% of anionic polyacrylamide, stirring for 10min, sequentially adding 0.5% of mixture of sodium dodecylbenzenesulfonate and propanol in any proportion, and 0.35% of potassium chloride.
Performance evaluation:
table 3 evaluation of performance of acid slickwater fracturing fluids
| Evaluating content | HCl concentration | Viscosity mPa.s | Resistance reduction rate | Surface tension mN/m | Contact angle ° |
| Evaluation results | 3％ | 4.0 | 70.80％ | 25.6 | 83 |
Example 4
A polymer-type acidic water slick is prepared through weighing 93.05% of water, adding 6.5% of hydrochloric acid, slowly adding 0.05% of anionic polyacrylamide, stirring for 10min, sequentially adding 0.35% of mixture of sodium dodecylbenzenesulfonate and propanol in any proportion, and 0.05% of potassium chloride.
Performance evaluation:
table 4 evaluation of performance of acid slickwater fracturing fluids
| Evaluating content | HCl concentration | Viscosity mPa.s | Resistance reduction rate | Surface tension mN/m | Contact angle ° |
| Evaluation results | 6.5％ | 3.8 | 72.60％ | 24.6 | 80 |
Example 5
A polymer-type acidic water slick is prepared through weighing 94.05% of water, adding 5.1% of hydrochloric acid, slowly adding 0.2% of anionic polyacrylamide, stirring for 10min, sequentially adding 0.15% of mixture of sodium dodecylbenzenesulfonate and propanol in any proportion and 0.5% of potassium chloride.
Performance evaluation:
TABLE 5 evaluation of acidic slickwater fracturing fluid Performance
| Evaluating content | HCl concentration | Viscosity mPa.s | Resistance reduction rate | Surface tension mN/m | Contact angle ° |
| Evaluation results | 5.1％ | 3.6 | 71.50％ | 24.3 | 82 |
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. The polymer type acidic slickwater is characterized by comprising the following preparation raw materials in percentage by mass:
0.1 to 7.5 percent of hydrochloric acid,
0.05 to 0.2 percent of acid-resistant resistance-reducing agent,
0.05 to 0.5 percent of discharge assistant agent,
0.05 to 0.5 percent of clay stabilizer,
the balance of water;
the acid-resistant resistance-reducing agent is anionic polyacrylamide;
the cleanup additive is at least one of fluorocarbon, OP-10, sodium dodecyl benzene sulfonate, propanol and isopropanol;
the clay stabilizer is at least one of potassium chloride, ammonium chloride, choline chloride and hexadecyl trimethyl ammonium chloride.
2. The polymeric acid slickwater of claim 1, wherein the drag reduction of the polymeric acid slickwater is 70-80%.
3. A polymeric acid slickwater according to claim 1 characterised in that the polymeric acid slickwater has a surface tension below 25mN/m, an interfacial tension below 2mN/m and a wetting angle between 75 ° and 90 °.
4. A process for the preparation of a polymeric acid slickwater according to any of the claims 1 to 3, characterised in that it comprises the following steps: and sequentially adding hydrochloric acid, the acid-resistant resistance-reducing agent, the cleanup additive and the clay stabilizer into water, and uniformly mixing and stirring to obtain the polymer type acidic slickwater.
5. Use of the polymeric sour slickwater according to any of the claims 1-3 or obtained by the preparation method according to claim 4 for stimulation of production from a reservoir in an oil and gas field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210098039.6A CN114456796A (en) | 2016-11-02 | 2016-11-02 | Polymer type acidic slickwater, and preparation method and application thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210098039.6A CN114456796A (en) | 2016-11-02 | 2016-11-02 | Polymer type acidic slickwater, and preparation method and application thereof |
| CN201610943758.8A CN106566523A (en) | 2016-11-02 | 2016-11-02 | Polymer-type acidic slickwater and preparation method thereof |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610943758.8A Division CN106566523A (en) | 2016-11-02 | 2016-11-02 | Polymer-type acidic slickwater and preparation method thereof |
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| CN107216867A (en) * | 2017-06-14 | 2017-09-29 | 陕西延长石油(集团)有限责任公司研究院 | A kind of low viscous drop resistance slippery water acid solution for Carbonate Reservoir |
| CN108949137A (en) * | 2018-07-21 | 2018-12-07 | 东营市宝泽能源科技有限公司 | A kind of low frictional resistance acid |
| CN109135719A (en) * | 2018-10-13 | 2019-01-04 | 中石化石油工程技术服务有限公司 | Drag reduction acid and method for the transformation of high-carbon Carbonate Rocks shale gas reservoir depth |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104559998A (en) * | 2013-10-23 | 2015-04-29 | 中国石油化工股份有限公司 | Slippery water for shale gas fracturing and preparation method thereof |
| CN105349131A (en) * | 2015-09-29 | 2016-02-24 | 成都理工大学 | Shale gas reservoir deep transformation method based on acidic slickwater |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6787506B2 (en) * | 2002-04-03 | 2004-09-07 | Nalco Energy Services, L.P. | Use of dispersion polymers as friction reducers in aqueous fracturing fluids |
| CN102702424B (en) * | 2012-05-25 | 2013-05-29 | 西南石油大学 | Zwitterionic polymer, preparation method of zwitterionic polymer and application in hydrochloric acid-base fracturing fluid |
| CN104559997B (en) * | 2013-10-23 | 2018-01-02 | 中国石油化工股份有限公司 | A kind of shale gas pressure break slippery water and preparation method thereof |
| CN104371695B (en) * | 2014-10-10 | 2017-07-18 | 四川省威尔敦化工有限公司 | The preparation method for the slippery water exploited applied to shale gas batch production pressure break |
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- 2016-11-02 CN CN202210098039.6A patent/CN114456796A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104559998A (en) * | 2013-10-23 | 2015-04-29 | 中国石油化工股份有限公司 | Slippery water for shale gas fracturing and preparation method thereof |
| CN105349131A (en) * | 2015-09-29 | 2016-02-24 | 成都理工大学 | Shale gas reservoir deep transformation method based on acidic slickwater |
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Application publication date: 20220510 |