CN109988550A - A kind of instant crosslinked fracturing fluid system of methanol-based and its preparation method and application - Google Patents
A kind of instant crosslinked fracturing fluid system of methanol-based and its preparation method and application Download PDFInfo
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- CN109988550A CN109988550A CN201910388591.7A CN201910388591A CN109988550A CN 109988550 A CN109988550 A CN 109988550A CN 201910388591 A CN201910388591 A CN 201910388591A CN 109988550 A CN109988550 A CN 109988550A
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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
- C09K8/665—Compositions based on water or polar solvents containing inorganic compounds
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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
- 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
- C09K8/70—Compositions for forming crevices or fractures characterised by their form or by the form of their components, e.g. foams
- C09K8/703—Foams
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Abstract
The present invention provides instant crosslinked fracturing fluid systems of a kind of methanol-based and its preparation method and application, belong to oil gas well drilling exploitation field.In the present invention, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride can be dissolved in methanol.Embodiment statistics indicate that, the instant crosslinked fracturing fluid system of methanol-based provided by the invention can be realized in 10s it is instant, in 130 DEG C, 170s‑1Viscosity is maintained at 50mPas or more after shearing 1h, can satisfy the industrial application of high water sensitive formation oil gas well drilling exploitation.
Description
Technical field
The present invention relates to oil gas well drilling production technique field more particularly to a kind of instant crosslinked fracturing fluid systems of methanol-based
And its preparation method and application.
Background technique
In recent years, with the adjustment of national energy structure, storage capacity is huge, to the environmentally friendly unconventional oil and gas being affected
Important component-coal bed gas is increasingly becoming one of the key object of exploration and the exploitation of China's unconventional petroleum resources.
Storage environment, storage state of coal bed gas etc. determine that pressing crack construction is to realize that coal bed gas is quickly increased production and effectively opened
The important way of hair.There are water insensitive problems for fracturing fluid system used in the prior art.
Summary of the invention
In consideration of it, the purpose of the present invention is to provide instant crosslinked fracturing fluid system of a kind of methanol-based and preparation method thereof and
Using.The instant crosslinked fracturing fluid system of methanol-based provided by the invention can be used for high water sensitive stratum to water sensitive.
In order to achieve the above-mentioned object of the invention, the present invention the following technical schemes are provided:
A kind of instant crosslinked fracturing fluid system of methanol-based, the component including following mass fraction: 2- acrylamide -2- methyl
Propane sulfonic acid 2~5%, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride 50~80%, methanol aqueous solution 15~50% and surplus
Acrylamide.
Preferably, the concentration of methanol is 60~90wt% in the methanol aqueous solution.
Preferably, the instant crosslinked fracturing fluid system of the methanol-based further includes liquid CO2。
Preferably, the liquid CO2Mass fraction be 2~5%.
The present invention also provides the preparation method of the instant crosslinked fracturing fluid system of methanol-based described in above-mentioned technical proposal, packets
Include following steps:
By 2- acrylamide-2-methyl propane sulfonic, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, methanol aqueous solution and
Acrylamide mixing, obtains the instant crosslinked fracturing fluid system of the methanol-based.
The present invention also provides described in above-mentioned technical proposal the instant crosslinked fracturing fluid system of methanol-based or above-mentioned technical side
Application of the instant crosslinked fracturing fluid system of methanol-based made from preparation method described in case in field of oilfield exploitation.
The present invention provides a kind of instant crosslinked fracturing fluid system of methanol-based, the components including following mass fraction: 2- third
Acrylamide -2- methyl propane sulfonic acid 2~5%, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride 50~80%, methanol aqueous solution 15~
50% and surplus acrylamide.In the present invention, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride can be dissolved in methanol.Implement
Example statistics indicate that, the instant crosslinked fracturing fluid system of methanol-based provided by the invention can be realized in 10s it is instant, 130 DEG C,
170s-1Viscosity is maintained at 50mPas or more after shearing 1h, can satisfy the industry of high water sensitive formation oil gas well drilling exploitation
Using.
Further, the instant crosslinked fracturing fluid system of methanol-based provided by the invention further includes liquid carbon dioxide, addition
After liquid carbon dioxide, the instant crosslinked fracturing fluid system of obtained methanol-based is capable of forming certain foam when being pumped into, according to
The difference for the water added when being pumped into, available foam crosslinked gel transport not when being more advantageous to oil gas well drilling exploitation
With in the stratum of depth.
Specific embodiment
The present invention provides a kind of instant crosslinked fracturing fluid system of methanol-based, the components including following mass fraction: 2- third
Acrylamide -2- methyl propane sulfonic acid 2~5%, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride 50~80%, methanol aqueous solution 15~
50% and surplus acrylamide.
The instant crosslinked fracturing fluid system of methanol-based provided by the invention preferably includes the 2- acrylamide-of 3% mass fraction
2- methyl propane sulfonic acid (AMPS).
The instant crosslinked fracturing fluid system of methanol-based provided by the invention preferably includes the methyl-prop of 55~75% mass fractions
Alkene acyloxyethyl trimethyl ammonium chloride (DMC), more preferably 60~65%.In the present invention, the methylacryoyloxyethyl
Trimethyl ammonium chloride can be dissolved in methanol.
The instant crosslinked fracturing fluid system of methanol-based provided by the invention preferably includes the methanol-water of 20~40% mass fractions
Solution, more preferably 15~35%.In the present invention, the concentration of methanol is preferably 60~90wt% in the methanol aqueous solution,
More preferably 70~80wt%.
In the present invention, it is also preferable to include liquid CO for the instant crosslinked fracturing fluid system of the methanol-based2, the liquid CO2's
Mass fraction is preferably 2~5%.In the present invention, after adding liquid carbon dioxide, the instant crosslinked fracturing fluid of obtained methanol-based
System is capable of forming certain foam when being pumped into, and according to the difference for the water added when being pumped into, available foam crosslinking is frozen
Glue transports in the stratum of different depth when being more advantageous to oil gas well drilling exploitation.
The present invention also provides the preparation method of the instant crosslinked fracturing fluid system of methanol-based described in above-mentioned technical proposal, packets
Include following steps:
By 2- acrylamide-2-methyl propane sulfonic, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, methanol aqueous solution and
Acrylamide mixing, obtains the instant crosslinked fracturing fluid system of the methanol-based.
The present invention does not have special restriction to the addition sequence of the hybrid mode and each raw material, using art technology
Scheme known to personnel.
When the instant crosslinked fracturing fluid system of the methanol-based contains liquid carbon dioxide, preparation method of the present invention is excellent
It is selected under conditions of liquid is presented in carbon dioxide and carries out.
The present invention also provides described in above-mentioned technical proposal the instant crosslinked fracturing fluid system of methanol-based or above-mentioned technical side
Application of the instant crosslinked fracturing fluid system of methanol-based made from preparation method described in case in field of oilfield exploitation.
Below with reference to embodiment to a kind of instant crosslinked fracturing fluid system of methanol-based provided by the invention and preparation method thereof
It is described in detail with application, but they cannot be interpreted as limiting the scope of the present invention.
Embodiment 1
A kind of instant crosslinked fracturing fluid system of methanol-based, the component including following mass fraction: 2- acrylamide -2- methyl
Propane sulfonic acid 2%, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride 80%, methanol aqueous solution 15%, wherein first in methanol aqueous solution
The concentration of alcohol is the acrylamide of 90wt% and surplus.
The present invention is water-soluble by 2- acrylamide-2-methyl propane sulfonic, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, methanol
Liquid and acrylamide mixing, obtain the instant crosslinked fracturing fluid system of the methanol-based.
Performance test:
Rheometer heating temperature is tested: installed fracturing fluid and set using III HTHP rheometer of MAS-, uses table
It sees viscosity and changes over time the shear stability that trend determines fracturing fluid system, in 130 DEG C, 170s-1Viscosity is kept after shearing 1h
In 50mPas or more.
Through detecting, (methanol-based speed is instantly dissolved in water in the instant crosslinked fracturing fluid system 10s of methanol-based made from the present embodiment
Molten crosslinked fracturing fluid system and the volume ratio of water are 1:1).
Embodiment 2
A kind of instant crosslinked fracturing fluid system of methanol-based, the component including following mass fraction: 2- acrylamide -2- methyl
Propane sulfonic acid 8%, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride 50%, methanol aqueous solution 15%, wherein first in methanol aqueous solution
The concentration of alcohol is the acrylamide of 90wt% and surplus.
The present invention is water-soluble by 2- acrylamide-2-methyl propane sulfonic, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, methanol
Liquid and acrylamide mixing, obtain the instant crosslinked fracturing fluid system of the methanol-based.
The performance test methods of the instant crosslinked fracturing fluid system of methanol-based are same as Example 1, as a result as follows:
In 130 DEG C, 170s-1Viscosity is maintained at 50mPas or more after shearing 1h.
Through detecting, (methanol-based speed is instantly dissolved in water in the instant crosslinked fracturing fluid system 10s of methanol-based made from the present embodiment
Molten crosslinked fracturing fluid system and the volume ratio of water are 1:2).
Embodiment 3
A kind of instant crosslinked fracturing fluid system of methanol-based, the component including following mass fraction: 2- acrylamide -2- methyl
Propane sulfonic acid 3%, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride 50%, methanol aqueous solution 15%, wherein first in methanol aqueous solution
The concentration of alcohol is 70wt%, liquid CO22% and surplus acrylamide.
The present invention is water-soluble by 2- acrylamide-2-methyl propane sulfonic, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, methanol
Liquid, liquid CO2And acrylamide mixing, preparation carry out under conditions of liquid is presented in carbon dioxide, obtain the methanol-based
Instant crosslinked fracturing fluid system.
The performance test methods of the instant crosslinked fracturing fluid system of methanol-based are same as Example 1, as a result as follows:
In 130 DEG C, 170s-1Viscosity is maintained at 50mPas or more after shearing 1h.
What the instant crosslinked fracturing fluid system of methanol-based made from the present embodiment obtained after mixing with water is foam crosslinked gel,
It is transported in the stratum of different depth when being more advantageous to oil gas well drilling exploitation.
Through detecting, (methanol-based speed is instantly dissolved in water in the instant crosslinked fracturing fluid system 10s of methanol-based made from the present embodiment
Molten crosslinked fracturing fluid system and the volume ratio of water are 1:4).
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of instant crosslinked fracturing fluid system of methanol-based, which is characterized in that the component including following mass fraction: 2- acryloyl
Amine -2- methyl propane sulfonic acid 2~5%, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride 50~80%, methanol aqueous solution 15~50%
And the acrylamide of surplus.
2. the instant crosslinked fracturing fluid system of methanol-based according to claim 1, which is characterized in that in the methanol aqueous solution
The concentration of methanol is 60~90wt%.
3. the instant crosslinked fracturing fluid system of methanol-based according to claim 1, which is characterized in that the instant friendship of methanol-based
Joining fracturing fluid system further includes liquid CO2。
4. the instant crosslinked fracturing fluid system of methanol-based according to claim 3, which is characterized in that the liquid CO2Quality
Score is 2~5%.
5. the preparation method of the instant crosslinked fracturing fluid system of the described in any item methanol-baseds of Claims 1 to 4, which is characterized in that
The following steps are included:
By 2- acrylamide-2-methyl propane sulfonic, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, methanol aqueous solution and propylene
Amide mixing, obtains the instant crosslinked fracturing fluid system of the methanol-based.
6. preparation side described in the instant crosslinked fracturing fluid system of the described in any item methanol-baseds of Claims 1 to 4 or claim 5
Application of the instant crosslinked fracturing fluid system of methanol-based made from method in field of oilfield exploitation.
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| CN201910388591.7A CN109988550A (en) | 2019-05-10 | 2019-05-10 | A kind of instant crosslinked fracturing fluid system of methanol-based and its preparation method and application |
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| CN1696241A (en) * | 2005-06-17 | 2005-11-16 | 甘肃省庆阳长庆井下化工厂 | Alcohol-base fracturing fluid |
| CN101412906A (en) * | 2008-12-05 | 2009-04-22 | 河南省科学院高新技术研究中心 | Acid fracturing thickening agent and preparation thereof |
| CN102277149A (en) * | 2010-06-11 | 2011-12-14 | 中国石油天然气股份有限公司 | Low-permeability oil field surfactant oil displacement agent |
| CN102492414A (en) * | 2011-12-05 | 2012-06-13 | 北京希涛技术开发有限公司 | Synthesis of thickening agent for methanol-based fracturing fluid |
| CN103554288A (en) * | 2013-10-11 | 2014-02-05 | 北京国海能源技术研究院 | Instant guar gum and preparation method thereof |
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| CN104974308A (en) * | 2014-04-10 | 2015-10-14 | 中国石油化工股份有限公司 | Resistance reducing agent for fracture and preparation method thereof |
| CN105001373A (en) * | 2015-06-05 | 2015-10-28 | 中海油能源发展股份有限公司工程技术分公司 | Seawater base quick-dissolving type temperature-resistance fracturing fluid system |
| CN107880212A (en) * | 2017-11-02 | 2018-04-06 | 中国石油集团渤海钻探工程有限公司 | A kind of water-in-water type emulsion for acid fracturing and preparation method thereof |
-
2019
- 2019-05-10 CN CN201910388591.7A patent/CN109988550A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1696241A (en) * | 2005-06-17 | 2005-11-16 | 甘肃省庆阳长庆井下化工厂 | Alcohol-base fracturing fluid |
| CN101412906A (en) * | 2008-12-05 | 2009-04-22 | 河南省科学院高新技术研究中心 | Acid fracturing thickening agent and preparation thereof |
| CN102277149A (en) * | 2010-06-11 | 2011-12-14 | 中国石油天然气股份有限公司 | Low-permeability oil field surfactant oil displacement agent |
| CN102492414A (en) * | 2011-12-05 | 2012-06-13 | 北京希涛技术开发有限公司 | Synthesis of thickening agent for methanol-based fracturing fluid |
| CN103554288A (en) * | 2013-10-11 | 2014-02-05 | 北京国海能源技术研究院 | Instant guar gum and preparation method thereof |
| CN104974308A (en) * | 2014-04-10 | 2015-10-14 | 中国石油化工股份有限公司 | Resistance reducing agent for fracture and preparation method thereof |
| CN104194765A (en) * | 2014-08-28 | 2014-12-10 | 中国石油集团渤海钻探工程有限公司 | Continuously blended liquefied polymer thickener for fracturing construction |
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