CN116103030A - Low-concentration slick water and preparation method and application thereof - Google Patents
Low-concentration slick water and preparation method and application thereof Download PDFInfo
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- CN116103030A CN116103030A CN202310140493.8A CN202310140493A CN116103030A CN 116103030 A CN116103030 A CN 116103030A CN 202310140493 A CN202310140493 A CN 202310140493A CN 116103030 A CN116103030 A CN 116103030A
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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
- C09K8/60—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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/56—Acrylamide; Methacrylamide
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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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
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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
- 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
-
- 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
- C09K2208/28—Friction or drag reducing additives
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
Abstract
The invention belongs to the technical field of fracturing fluid and provides low-concentration slick water. The drag reducer is used for improving the drag reduction rate of slick water, and the consumption is small, so that the cost of the slick water is reduced; the cleanup additive is used for helping the slick water raffinate to flow back from the stratum; the clay stabilizer is used for inhibiting the expansion of stratum clay and the migration of clay particles, and preventing the damage of water-sensitive minerals to hydrocarbon reservoirs caused by hydration expansion and dispersion migration. The drag reducer provided by the invention takes the polymeric monomer, the composite emulsifier and the initiator as raw materials, and the prepared drag reducer has the advantages of water solubility, drag reduction, sand carrying property, temperature resistance and the like, and the slick water prepared by the drag reducer has the characteristic of high drag reduction rate. The results of the examples show that the drag reduction rate of the low-concentration slickwater provided by the invention can reach 80.5%.
Description
Technical Field
The invention relates to the technical field of fracturing fluid, in particular to low-concentration slick water and a preparation method and application thereof.
Background
In the shale gas exploitation process, due to poor physical properties of a reservoir, the reservoir is often required to be subjected to fracturing volume transformation during construction, so that cracks are generated for diversion, and the slickwater can be used for improving the production recovery ratio. Slick water has many excellent characteristics such as lower viscosity, easy flowback, lower damage to reservoirs, low price and the like. In addition, in the construction process, the residue is less after the use is finished, and the residual gel amount is also less.
However, the slickwater used in the present domestic places also has the problems of low drag reduction rate, surface activity deviation, low sand carrying ratio, poor compatibility with a target reservoir and the like. Therefore, there is a need for a high drag reduction rate slickwater system that reduces drag reducer usage and cost of slickwater on the same scale of operation.
Disclosure of Invention
The invention aims to provide low-concentration slickwater, and a preparation method and application thereof.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides low-concentration slick water which comprises the following components in percentage by mass: 0.05 to 0.1 percent of drag reducer, 0.03 to 0.2 percent of cleanup additive, 0.06 to 0.15 percent of clay stabilizer and the balance of water;
the raw materials for preparing the drag reducer comprise: 70-80% of polymerized monomer, 10-20% of composite emulsifier and 5-10% of initiator; the polymeric monomers include acrylic acid, acrylamide, 2-acrylamido-2-methylpropanesulfonic acid, and dodecyldimethylammonium bromide.
Preferably, the low-concentration slick water comprises the following components in percentage by mass: 0.05 to 0.08 percent of drag reducer, 0.06 to 0.15 percent of cleanup additive, 0.08 to 0.12 percent of clay stabilizer and the balance of water.
Preferably, the mass ratio of the acrylic acid, the acrylamide, the 2-acrylamido-2-methylpropanesulfonic acid and the dodecyl dimethyl ammonium bromide is (5-10): (5-10): (3-5): (3-5).
Preferably, the composite emulsifier comprises sorbitan oleate, sorbitan monooleate polyoxyethylene ether and alkylphenol polyoxyethylene ether.
Preferably, the mass ratio of the sorbitan oleate to the sorbitan monooleate polyoxyethylene ether to the alkylphenol polyoxyethylene ether is (10-15): (3-5): (2-4).
Preferably, the initiator comprises dimethyl azodiisobutyrate.
Preferably, the cleanup additive comprises one or more of alcohol ether sulfate, octyl phenol polyoxyethylene ether, glycerol pentaerythritol, ethylene glycol and isopropanol.
Preferably, the clay stabilizer comprises one or more of polydimethyl diallyl ammonium chloride, potassium chloride and cationic polyacrylamide.
The invention also provides a preparation method of the low-concentration slick water, which comprises the following steps: sequentially adding the drag reducer, the cleanup additive and the clay stabilizer into water, and uniformly mixing to obtain the low-concentration slick water.
The invention also provides application of the low-concentration slickwater prepared by the technical scheme or the preparation method in exploitation of oil and gas field reservoirs.
The invention provides low-concentration slick water which comprises the following components in percentage by mass: 0.05 to 0.1 percent of drag reducer, 0.03 to 0.2 percent of cleanup additive, 0.06 to 0.15 percent of clay stabilizer and the balance of water; the raw materials for preparing the drag reducer comprise: 70-80% of polymerized monomer, 10-20% of composite emulsifier and 5-10% of initiator; the polymeric monomers include acrylic acid, acrylamide, 2-acrylamido-2-methylpropanesulfonic acid, and dodecyldimethylammonium bromide. The drag reducer is used for improving the drag reduction rate of slick water, and the consumption is small, so that the cost of the slick water is reduced; the cleanup additive is used for helping the slick water raffinate to flow back from the stratum; the clay stabilizer is used for inhibiting the expansion of stratum clay and the migration of clay particles, and preventing the damage of water-sensitive minerals to hydrocarbon reservoirs caused by hydration expansion and dispersion migration. The drag reducer provided by the invention takes the polymeric monomer, the composite emulsifier and the initiator as raw materials, and the prepared drag reducer has the advantages of water solubility, drag reduction, sand carrying property, temperature resistance and the like, and the slick water prepared by the drag reducer has the characteristic of high drag reduction rate. The results of the examples show that the drag reduction rate of the low-concentration slickwater provided by the invention can reach 80.5%.
Detailed Description
The invention provides low-concentration slick water which comprises the following components in percentage by mass: 0.05 to 0.1 percent of drag reducer, 0.03 to 0.2 percent of cleanup additive, 0.06 to 0.15 percent of clay stabilizer and the balance of water;
the raw materials for preparing the drag reducer comprise: 70-80% of polymerized monomer, 10-20% of composite emulsifier and 5-10% of initiator; the polymeric monomers include acrylic acid, acrylamide, 2-acrylamido-2-methylpropanesulfonic acid, and dodecyldimethylammonium bromide.
In the present invention, the low concentration slickwater comprises, in weight percent, from 0.05 to 0.1%, preferably from 0.05 to 0.08%, of drag reducing agent. The drag reducer is used for improving the drag reduction rate of slickwater, has small dosage and reduces the cost of the slickwater.
In the present invention, the raw materials for preparing the drag reducer comprise, in weight percent: 70-80% of polymerized monomer, 10-20% of composite emulsifier and 5-10% of initiator; more preferably 75 to 80% of a polymer monomer, 10 to 15% of a composite emulsifier, and 5 to 8% of an initiator. The invention takes the polymerized monomer, the composite emulsifier and the initiator as raw materials, the prepared drag reducer has the advantages of water solubility, drag reduction, sand carrying property, temperature resistance and the like, and the slick water prepared by the drag reducer has the characteristic of high drag reduction rate.
In the present invention, the polymerization monomers include acrylic acid, acrylamide, 2-acrylamido-2-methylpropanesulfonic acid, and dodecyldimethylammonium bromide. The drag reducer is prepared by taking the acrylic acid, the acrylamide, the 2-acrylamide-2-methylpropanesulfonic acid and the dodecyl dimethyl ammonium bromide as the polymerization monomers, so that the drag reducer has the advantage of improving the drag resistance of the drag reducer, and the slick water with high drag reduction rate is further obtained. The sources of the acrylic acid, acrylamide, 2-acrylamido-2-methylpropanesulfonic acid and dodecyldimethylammonium bromide are not particularly limited and commercially available products known to those skilled in the art may be used.
In the present invention, the mass ratio of the acrylic acid, the acrylamide, the 2-acrylamido-2-methylpropanesulfonic acid and the dodecyldimethylammonium bromide is preferably (5 to 10): (5-10): (3-5): (3 to 5), more preferably (8 to 10): (8-10): (4-5): (4-5). The mass ratio of the acrylic acid, the acrylamide, the 2-acrylamido-2-methylpropanesulfonic acid and the dodecyl dimethyl ammonium bromide is preferably controlled within the range, so that the drag reducer with excellent drag reduction performance is obtained.
In the present invention, the composite emulsifier preferably includes sorbitan oleate, sorbitan monooleate polyoxyethylene ether and alkylphenol polyoxyethylene ether. The invention takes the sorbitan oleate, the sorbitan monooleate polyoxyethylene ether and the alkylphenol polyoxyethylene ether as the composite emulsifier, which is favorable for obtaining the drag reducer with excellent drag reduction performance. The sources of the sorbitan oleate, the sorbitan monooleate polyoxyethylene ether and the alkylphenol polyoxyethylene ether are not particularly limited, and commercially available products known to those skilled in the art can be used.
In the present invention, the mass ratio of the sorbitan oleate, the sorbitan monooleate polyoxyethylene ether and the alkylphenol polyoxyethylene ether is preferably (10 to 15): (3-5): (2 to 4), more preferably (12 to 15): (4-5): (3-4). The mass ratio of the sorbitan oleate, the sorbitan monooleate polyoxyethylene ether and the alkylphenol polyoxyethylene ether is preferably controlled within the range, so that the drag reducer with excellent drag reduction performance can be obtained.
In the present invention, the initiator preferably includes dimethyl azodiisobutyrate. The source of the initiator is not particularly limited in the present invention, and commercially available products known to those skilled in the art may be used.
The method of preparing the drag reducer is not particularly limited in the present invention, and methods of preparing the polymer, which are well known to those skilled in the art, may be employed.
In the present invention, the low concentration slickwater comprises, in weight percent, from 0.03 to 0.2%, preferably from 0.06 to 0.15%, of a drainage aid. The cleanup additive of the present invention is used to assist in the flowback of slick water raffinate from the formation.
In the present invention, the cleanup additive preferably includes one or more of alcohol ether sulfate, octylphenol polyoxyethylene ether, glycerol pentaerythritol, ethylene glycol and isopropanol, more preferably one or more of alcohol ether sulfate, ethylene glycol and isopropanol. The source of the cleanup additive is not particularly limited, and commercially available products known to those skilled in the art may be used.
In the present invention, the low concentration slickwater comprises, in weight percent, from 0.06 to 0.15%, preferably from 0.08 to 0.12% of a clay stabilizer. The clay stabilizer can inhibit the expansion of stratum clay and the migration of clay particles, and prevent the damage of water-sensitive minerals to hydrocarbon reservoirs caused by hydration expansion and dispersion migration.
In the present invention, the clay stabilizer preferably includes one or more of polydimethyldiallylammonium chloride, potassium chloride and cationic polyacrylamide, more preferably one or more of polydimethyldiallylammonium chloride and cationic polyacrylamide. The source of the clay stabilizer is not particularly limited, and commercially available products known to those skilled in the art may be used.
In the present invention, the low concentration slick water further comprises the balance water in weight percent.
The drag reducer is used for improving the drag reduction rate of slick water, and the consumption is small, so that the cost of the slick water is reduced; the cleanup additive is used for helping the slick water raffinate to flow back from the stratum; the clay stabilizer is used for inhibiting the expansion of stratum clay and the migration of clay particles, and preventing the damage of water-sensitive minerals to hydrocarbon reservoirs caused by hydration expansion and dispersion migration. The drag reducer provided by the invention takes the polymeric monomer, the composite emulsifier and the initiator as raw materials, and the prepared drag reducer has the advantages of water solubility, drag reduction, sand carrying property, temperature resistance and the like, and the slick water prepared by the drag reducer has the characteristic of high drag reduction rate.
The invention also provides a preparation method of the low-concentration slick water, which comprises the following steps: sequentially adding the drag reducer, the cleanup additive and the clay stabilizer into water, and uniformly mixing to obtain the low-concentration slick water.
The preparation method of the low-concentration slick water provided by the invention is simple to operate and convenient for industrial use.
The invention also provides application of the low-concentration slickwater prepared by the technical scheme or the preparation method in exploitation of oil and gas field reservoirs.
The method of the present invention for applying the low concentration slickwater in the oil and gas field reservoir is not particularly limited, and the method of applying the slickwater in the oil and gas field reservoir, which is well known to those skilled in the art, may be adopted.
The technical solutions of the present invention will be clearly and completely described in the following in connection with the 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
The low-concentration slick water consists of the following components in percentage by mass: 0.06% of drag reducer, 0.08% of cleanup additive alcohol ether sulfate, 0.1% of clay stabilizer polydimethyl diallyl ammonium chloride and the balance of water;
the drag reducer is prepared from the following raw materials in percentage by mass: 75% of a polymerization monomer, 15% of a composite emulsifier and 10% of an initiator; the polymerization monomers are acrylic acid, acrylamide, 2-acrylamido-2-methylpropanesulfonic acid and dodecyl dimethyl ammonium bromide, and the mass ratio is 8:8:5:5; the composite emulsifier is sorbitan oleate, sorbitan monooleate polyoxyethylene ether and alkylphenol polyoxyethylene ether, and the mass ratio is 12:4:3; the initiator is dimethyl azodiisobutyrate;
the preparation method of the low-concentration slick water comprises the following steps: sequentially adding drag reducer, cleanup additive alcohol ether sulfate and clay stabilizer polydimethyldiallyl ammonium chloride into water, and uniformly mixing to obtain low-concentration slickwater.
Example 2
The low-concentration slick water consists of the following components in percentage by mass: 0.08% of drag reducer, 0.15% of cleanup additive glycerol pentaerythritol, 0.12% of clay stabilizer cationic polyacrylamide and the balance of water;
the drag reducer is prepared from the following raw materials in percentage by mass: 80% of a polymerization monomer, 15% of a composite emulsifier and 5% of an initiator; the polymerization monomers are acrylic acid, acrylamide, 2-acrylamido-2-methylpropanesulfonic acid and dodecyl dimethyl ammonium bromide, and the mass ratio is 10:10:4:4; the composite emulsifier is sorbitan oleate, sorbitan monooleate polyoxyethylene ether and alkylphenol polyoxyethylene ether, and the mass ratio is 10:3:3; the initiator is dimethyl azodiisobutyrate;
the preparation method of the low-concentration slick water comprises the following steps: sequentially adding drag reducer, cleanup additive glycerol pentaerythritol and clay stabilizer cationic polyacrylamide into water, and uniformly mixing to obtain low-concentration slick water.
Example 3
The low-concentration slick water consists of the following components in percentage by mass: 0.1% of drag reducer, 0.06% of cleanup additive glycol, 0.08% of clay stabilizer potassium chloride and the balance of water;
the drag reducer is prepared from the following raw materials in percentage by mass: 78% of polymerized monomer, 14% of composite emulsifier and 8% of initiator; the polymerization monomers are acrylic acid, acrylamide, 2-acrylamido-2-methylpropanesulfonic acid and dodecyl dimethyl ammonium bromide, and the mass ratio is 7:7:3:3; the composite emulsifier is sorbitan oleate, sorbitan monooleate polyoxyethylene ether and alkylphenol polyoxyethylene ether, and the mass ratio is 15:4:4; the initiator is dimethyl azodiisobutyrate;
the preparation method of the low-concentration slick water comprises the following steps: sequentially adding drag reducer, cleanup additive glycol and clay stabilizer potassium chloride into water, and uniformly mixing to obtain low-concentration slick water.
Comparative example 1
The difference from example 1 is that the drag reducer is 0.03% and the remainder is the same as in example 1.
Comparative example 2
The difference from example 1 is that the drag reducer is 0.2% and the remainder is the same as example 1.
Comparative example 3
The difference from example 1 is that the polymerized monomers are acrylic acid, acrylamide, 2-acrylamido-2-methylpropanesulfonic acid and dodecyldimethylammonium bromide in a mass ratio of 15:15:2:2, the remainder being the same as in example 1.
Comparative example 4
The difference from example 1 is that the composite emulsifier is sorbitan oleate, sorbitan monooleate polyoxyethylene ether and alkylphenol polyoxyethylene ether, the mass ratio is 8:8:4, and the rest is the same as example 1.
The drag reduction rates of slickwater in examples 1 to 3 and comparative examples 1 to 4 were tested according to SY/T5107-2016 Water-based fracturing fluid evaluation method, and the test results are shown in Table 1.
Table 1 drag reduction rates of slickwater in examples 1 to 3 and comparative examples 1 to 4
As can be seen from the above examples, the low concentration slickwater provided by the present invention has excellent drag reduction rates, which can reach 80.5%.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (10)
1. A low concentration slick water comprising the following components in mass percent: 0.05 to 0.1 percent of drag reducer, 0.03 to 0.2 percent of cleanup additive, 0.06 to 0.15 percent of clay stabilizer and the balance of water;
the raw materials for preparing the drag reducer comprise: 70-80% of polymerized monomer, 10-20% of composite emulsifier and 5-10% of initiator; the polymeric monomers include acrylic acid, acrylamide, 2-acrylamido-2-methylpropanesulfonic acid, and dodecyldimethylammonium bromide.
2. The low-concentration slick water of claim 1, comprising, in mass percent: 0.05 to 0.08 percent of drag reducer, 0.06 to 0.15 percent of cleanup additive, 0.08 to 0.12 percent of clay stabilizer and the balance of water.
3. The low-concentration slick water as claimed in claim 1 or 2, wherein the mass ratio of acrylic acid, acrylamide, 2-acrylamido-2-methylpropanesulfonic acid and dodecyldimethylammonium bromide is (5-10): (5-10): (3-5): (3-5).
4. The low concentration slick water of claim 1 or 2, wherein the composite emulsifier comprises sorbitan oleate, sorbitan monooleate polyoxyethylene ether and alkylphenol polyoxyethylene ether.
5. The low-concentration slick water as claimed in claim 4, wherein the mass ratio of the sorbitan oleate, the sorbitan monooleate polyoxyethylene ether and the alkylphenol polyoxyethylene ether is (10-15): (3-5): (2-4).
6. The low concentration slick water of claim 1 or 2, wherein said initiator comprises dimethyl azodiisobutyrate.
7. The low concentration slick water of claim 1 or 2, wherein the drainage aid comprises one or more of alcohol ether sulfate, octylphenol polyoxyethylene ether, glycerol pentaerythritol, ethylene glycol and isopropanol.
8. The low concentration slick water of claim 1 or 2, wherein the clay stabilizer comprises one or more of polydimethyldiallylammonium chloride, potassium chloride and cationic polyacrylamide.
9. A process for the preparation of low concentration slick water as claimed in any one of claims 1 to 8 comprising: sequentially adding the drag reducer, the cleanup additive and the clay stabilizer into water, and uniformly mixing to obtain the low-concentration slick water.
10. Use of the low concentration slickwater of any one of claims 1 to 8 or prepared by the method of preparation of claim 9 in the production of oil and gas field reservoirs.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102977877A (en) * | 2012-12-04 | 2013-03-20 | 西南石油大学 | Drag reducer for shale gas fracture and preparation method of drag reducer |
| CN103602329A (en) * | 2013-12-04 | 2014-02-26 | 黑龙江勇峰化工添加剂有限公司 | Drag reducer for fracturing |
| 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 |
| CN107603586A (en) * | 2017-10-24 | 2018-01-19 | 中石化石油工程技术服务有限公司 | Low temperature Low Damage shale gas slippery water fracturing fluid and preparation method thereof |
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2023
- 2023-02-20 CN CN202310140493.8A patent/CN116103030A/en active Pending
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|---|---|---|---|---|
| CN102977877A (en) * | 2012-12-04 | 2013-03-20 | 西南石油大学 | Drag reducer for shale gas fracture and preparation method of drag reducer |
| 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 |
| CN103602329A (en) * | 2013-12-04 | 2014-02-26 | 黑龙江勇峰化工添加剂有限公司 | Drag reducer for fracturing |
| CN107603586A (en) * | 2017-10-24 | 2018-01-19 | 中石化石油工程技术服务有限公司 | Low temperature Low Damage shale gas slippery water fracturing fluid and preparation method thereof |
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| Title |
|---|
| 张文龙等: "乳液型压裂液降阻剂的合成及其性能", 《石油化工》, vol. 44, no. 5, pages 608 * |
| 赵福麟主编: "《油田化学》", vol. 1, 石油大学出版社, pages: 210 * |
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