CN108276981A - A kind of fracturing liquid rubber-breaking accelerating agent, fracturing fluid system and their preparation method - Google Patents
A kind of fracturing liquid rubber-breaking accelerating agent, fracturing fluid system and their preparation method Download PDFInfo
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- CN108276981A CN108276981A CN201810123536.0A CN201810123536A CN108276981A CN 108276981 A CN108276981 A CN 108276981A CN 201810123536 A CN201810123536 A CN 201810123536A CN 108276981 A CN108276981 A CN 108276981A
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- fracturing fluid
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- 239000012530 fluid Substances 0.000 title claims abstract description 162
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 title description 12
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims abstract description 40
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 24
- 150000003863 ammonium salts Chemical class 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000011790 ferrous sulphate Substances 0.000 claims abstract description 21
- 235000003891 ferrous sulphate Nutrition 0.000 claims abstract description 21
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims abstract description 21
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims abstract description 21
- 235000010265 sodium sulphite Nutrition 0.000 claims abstract description 20
- 239000008367 deionised water Substances 0.000 claims abstract description 16
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 16
- 239000003002 pH adjusting agent Substances 0.000 claims abstract description 15
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical group Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 230000003750 conditioning effect Effects 0.000 claims description 5
- 239000003945 anionic surfactant Substances 0.000 claims description 3
- 150000003242 quaternary ammonium salts Chemical group 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims 2
- 229920000642 polymer Polymers 0.000 claims 1
- 229910052938 sodium sulfate Inorganic materials 0.000 claims 1
- 235000011152 sodium sulphate Nutrition 0.000 claims 1
- 239000003292 glue Substances 0.000 abstract description 21
- 239000000654 additive Substances 0.000 abstract description 4
- 230000000996 additive effect Effects 0.000 abstract description 2
- 239000003245 coal Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium peroxydisulfate Substances [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 5
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 5
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000002562 thickening agent Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- VAZSKTXWXKYQJF-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)OOS([O-])=O VAZSKTXWXKYQJF-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000008240 homogeneous mixture Substances 0.000 description 2
- SHFJWMWCIHQNCP-UHFFFAOYSA-M hydron;tetrabutylazanium;sulfate Chemical compound OS([O-])(=O)=O.CCCC[N+](CCCC)(CCCC)CCCC SHFJWMWCIHQNCP-UHFFFAOYSA-M 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- -1 oxonium ion Chemical class 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 241000271566 Aves Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000003444 phase transfer catalyst Substances 0.000 description 1
- 238000012667 polymer degradation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
- C09K8/60—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
- C09K8/66—Compositions based on water or polar solvents
- C09K8/68—Compositions based on water or polar solvents containing organic compounds
- C09K8/685—Compositions based on water or polar solvents containing organic compounds containing cross-linking agents
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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)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses a kind of fracturing fluid broken promoter for rubber, fracturing fluid system and their preparation methods.The fracturing fluid includes with broken promoter for rubber：Organic ammonium salt, ferrous sulfate, sodium sulfite, deionized water and pH adjusting agent, the organic ammonium salt, ferrous sulfate, sodium sulfite, deionized water and pH adjusting agent mass ratio be 37：1‑3：1‑6：83.5‑94.9：0.1 0.5, the fracturing fluid system includes：The broken promoter for rubber of fracturing fluid base fluid, crosslinking agent and the fracturing fluid.Fracturing fluid in the present invention can be used for modified polyacrylamide Type of Collective object fracturing fluid with broken promoter for rubber, at a lower temperature, completely broken glue in seeking time, and do not injure the fracturing fluid additive in coal seam.
Description
Technical field
The present invention relates to a kind of oil and gas reservoir, the additive of coalbed methane reservoir transformation fracturing fluid, more particularly to a kind of pressures
Split liquid broken promoter for rubber, fracturing fluid system and their preparation method.
Background technology
In recent years, it with the increase of the demand of petroleum gas, also begins to cause people's less than 1000m bed gas reservoirs
Pay attention to, these bed gas reservoir temperature are universal relatively low (20 DEG C or so), belong to low temperature oil-gas reservoir.For proved reserves, reservoir is transformed,
Production capacity is sought, most effective measure is exactly fracturing reform, and to the fracturing effect obtained, not requiring nothing more than fracturing fluid has well
Rheology is new, outstanding grittiness, drop consider and lose property etc., it is necessary to there is good broken glue hydrability, since the delay of fracturing fluid can be to storage
Layer damages, and fracturing fluid must thoroughly break glue and return row as early as possible, and the row of returning for improving fracturing fluid leads, to reduce the injury to reservoir,
Therefore, it is one of the key link for determining pressure break success or not that can fracturing fluid, which in time, thoroughly break glue and return row,.
Existing fracturing fluid passes through heat point with the strong oxidizer that broken promoter for rubber is usually persulfate one kind, persulfate
Solution generates free radical, so that the oxonium ion in hydrone is aoxidized and releases oxygen and make polymer degradation, achievees the purpose that brokenly glue,
But when temperature is less than 48 DEG C, the speed that persulfate decomposes release free radical is slowed or stopped, the effect for the glue that do not recur brokenly,
Slow, the broken glue of glue is then shown as brokenly in fracturing fluid is not thorough or even returns glue.Therefore, existing fracturing fluid exists with promoter for rubber is broken
Low temperature breaks the halfway problem of glue.
Invention content
In view of the problems existing in the prior art, the present invention provides a kind of fracturing fluid broken promoter for rubber, fracturing fluid systems
And their preparation methods.
According to an aspect of the invention, there is provided a kind of fracturing fluid is promoted with promoter for rubber, the fracturing fluid is broken with glue is broken
Include into agent：Organic ammonium salt, ferrous sulfate, sodium sulfite, deionized water and pH adjusting agent.
Optionally, the mass ratio of the organic ammonium salt, ferrous sulfate, sodium sulfite, deionized water and PH conditioning agents is 3-
7：1-3：1-6：83.5-94.9：0.1-0.5.
Optionally, the pH adjusting agent is hydrochloric acid, and the organic ammonium salt is quaternary ammonium salt.
According to another aspect of the present invention, a kind of fracturing fluid preparation method for breaking promoter for rubber, the method are provided
Include the following steps：
Organic ammonium salt, ferrous sulfate, sodium sulfite are weighed according to mass ratio；
The organic ammonium salt, ferrous sulfate, sodium sulfite finished will be weighed to be add to deionized water, after mixing, added
Enter pH adjusting agent, continues stirring to the solution for forming clear, the fracturing fluid is made with broken promoter for rubber；Wherein, organic
Ammonium salt, ferrous sulfate, sodium sulfite, deionized water and pH adjusting agent mass ratio be 3-7：1-3：1-6：83.5-94.9：0.1-
0.5。
According to a further aspect of the invention, a kind of fracturing fluid system is provided, the fracturing fluid system includes：Fracturing fluid
The broken promoter for rubber of base fluid, crosslinking agent and fracturing fluid described above.
Optionally, the fracturing fluid base fluid is formulated using modified polyacrylamide Type of Collective object as host agent, the crosslinking
Agent is anion surfactant.
According to a further aspect of the invention, a kind of preparation method of fracturing fluid system described above, the party are provided
Method includes：
Modified polyacrylamide Type of Collective object is dissolved in for host agent in clear water and is configured to fracturing fluid base fluid；
Crosslinking agent, fracturing fluid are added to broken promoter for rubber in the fracturing fluid base fluid, are uniformly mixed.
Optionally, the crosslinking agent accounts for the 0.2~0.5% of the fracturing fluid system gross mass, the broken glue of the fracturing fluid
Accelerating agent accounts for the 0.2~0.5% of the fracturing fluid system gross mass.
According to a further aspect of the invention, a kind of preparation method of fracturing fluid system described above, the party are provided
Method includes：
Modified polyacrylamide Type of Collective object is dissolved in for host agent in clear water and is configured to fracturing fluid base fluid；
By crosslinking agent and fracturing fluid with broken promoter for rubber according to 1:1 after mixing, is added in the fracturing fluid base fluid.
Optionally, crosslinking agent and fracturing fluid account for the fracturing fluid system gross mass with the broken mixed mixed liquor of promoter for rubber
0.4~1.0%.
In conclusion the present invention is by the way that organic ammonium salt, ferrous sulfate and sodium sulfite to be added to according to a certain percentage
Ionized water after forming homogeneous mixture solotion, adjusts the solution that mixed solution forms clear with pH adjusting agent, fracturing fluid is made
With broken promoter for rubber, which can mix interworkings with the various liquid additives of fracturing fluid system with promoter for rubber is broken, not influence
Each performance of former fracturing fluid system；And at low temperatures, fracturing fluid system can be accelerated thoroughly to break glue.The present invention is gone back simultaneously
It is prepared for a kind of fracturing fluid system using fracturing liquid rubber-breaking accelerating agent, which, which has, is widely used, free from environmental pollution
The characteristics of.
Description of the drawings
Fig. 1 is a kind of fracturing fluid preparation method flow chart for breaking promoter for rubber that the embodiment of the present invention provides；
Fig. 2 is a kind of preparation method flow chart for fracturing fluid system that the embodiment of the present invention provides；
Fig. 3 is a kind of fracturing fluid system another kind preparation method flow chart that the embodiment of the present invention provides.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
In one embodiment of the invention, the broken promoter for rubber of a kind of fracturing fluid, including：Organic ammonium salt, ferrous sulfate,
Sodium sulfite, deionized water and pH adjusting agent.
Wherein, pH adjusting agent is hydrochloric acid；Organic ammonium salt is quaternary ammonium salt.Such as hydrogen sulfate tetrabutylammonium, it should be noted that
Hydrogen sulfate tetrabutylammonium is that phase transfer catalyst promotes after fracturing fluid can be made to be added in fracturing fluid system with broken promoter for rubber
With the ferrous sulfate and sodium sulfite broken in promoter for rubber with persulfate redox reaction occurs for fracturing fluid, makes it in low temperature
Lower release free oxygen, to destroy gelled fracturing fluid system, so as to make fracturing liquid tie up to stratum, quickly broken glue returns row.
In one embodiment of the invention, organic ammonium salt, ferrous sulfate, sodium sulfite, deionized water and PH conditioning agents
Mass ratio be 3-7：1-3：1-6：83.5-94.9：0.1-0.5.
For example, organic ammonium salt, ferrous sulfate, sodium sulfite, deionized water and PH conditioning agents mass ratio be 5:2:3:
89.9:0.1。
Fig. 1 is a kind of fracturing fluid preparation method flow chart for breaking promoter for rubber that the embodiment of the present invention provides.Such as Fig. 1
Shown, a kind of fracturing fluid preparation method for breaking promoter for rubber, this approach includes the following steps：
Step S101 weighs organic ammonium salt, ferrous sulfate and sodium sulfite according to mass ratio；
Step S102 will weigh the organic ammonium salt, ferrous sulfate and sodium sulfite finished and be add to deionized water, mixing
After uniformly, addition pH adjusting agent continues stirring to the solution for forming clear, the fracturing fluid is made with broken promoter for rubber；
Wherein, the mass ratio of organic ammonium salt, ferrous sulfate, sodium sulfite, deionized water and pH adjusting agent is 5:2:3:89.9:0.1.
It should be noted that the fracturing fluid is reducing substances with broken promoter for rubber main component, can make at 20 DEG C or so
Ammonium persulfate accelerated decomposition, while a large amount of heat is released, return row so as to make fracturing fluid quickly break glue on stratum；Low
Under temperature, there are a small amount of ammonium persulfate in fracturing fluid, after the broken promoter for rubber of fracturing fluid prepared as shown in Figure 1 is added, by drawing
Hair peroxide makes it discharge free oxygen at low temperature, to destroy gelled fracturing fluid structure, makes macromolecules degradation, chemical equation
It is as follows：[SO3-O-O-SO3]-+2(-APS)-→[-O-SO3]-+(-APS)2SO4, wherein APS is that fracturing fluid is promoted with glue is broken
Agent.
In one embodiment of the invention, a kind of fracturing fluid system, including：Fracturing fluid base fluid, crosslinking agent and among the above
Fracturing fluid with break promoter for rubber.
Wherein, crosslinking agent is common chemical industry material in oil-gas field development, for improving fracturing fluid base fluid viscosity and raising
The solid-carrying performance of fracturing fluid is anion surfactant；Fracturing fluid base fluid is using modified polyacrylamide Type of Collective object as host agent
It is formulated.
Fig. 2 is a kind of preparation method flow chart for fracturing fluid system that the embodiment of the present invention provides.As shown in Fig. 2, one
The preparation method of kind fracturing fluid system, this method include：
Modified polyacrylamide Type of Collective object is dissolved in for host agent in clear water and is configured to fracturing fluid base fluid by step S201；
Crosslinking agent and fracturing fluid are added to broken promoter for rubber in fracturing fluid base fluid by step S202, are uniformly mixed.
It should be noted that can according to requirements such as fracturing fluid viscosity, well temperature, using different proportionings by crosslinking agent and
Fracturing fluid is added to broken promoter for rubber in fracturing fluid base fluid, wherein fracturing fluid is a concentration of with the use for breaking promoter for rubber
0.2%, the use a concentration of 0.2% of crosslinking agent, but can be adjusted according to fracturing fluid gelatinizer usage amount and formation temperature, it can
Know, thickening agent is common chemical industry material in oil-gas field development, is used for the host agent of preparing fracturing fluid base fluid, birdss of the same feather flock together for polyacrylamide
Close object；Thickening agent is higher using concentration ratio, formation temperature is lower, and fracturing fluid is higher with the use concentration for breaking promoter for rubber, can
Know, thickening agent accounts for the 0.2~0.5% of fracturing fluid system gross mass, and adjust fracturing fluid according to the ratio of thickening agent is promoted with glue is broken
The ratio of agent and crosslinking agent, fracturing fluid account for the 0.2~0.5% of fracturing fluid system gross mass with broken promoter for rubber；Crosslinking agent accounts for pressure
Split the 0.2~0.5% of liquid system gross mass.
It should be noted that fracturing fluid after breaking gel can be used as prepad fluid or load fluid is used alone, whole can also use,
It is sequentially injected into according to prepad fluid, load fluid, displacement fluid.
Fig. 3 is a kind of fracturing fluid system another kind preparation method flow chart that the embodiment of the present invention provides.Such as Fig. 3 institutes
Show, a kind of preparation method of fracturing fluid system, this method includes：Step S301, based on modified polyacrylamide Type of Collective object
Agent, which is dissolved in clear water, is configured to fracturing fluid base fluid；
Step S302, by crosslinking agent and fracturing fluid with broken promoter for rubber according to 1:1 after mixing, is added to pressure break liquid-based
In liquid.
It should be noted that fracturing fluid is added it to according to construction site condition in crosslinking agent with promoter for rubber is broken,
It is uniformly mixed, add crosslinking agent and fracturing fluid in proportion to fracturing fluid base fluid by fracturing blender truck in pressing crack construction is promoted with glue is broken
Agent mixed liquor forms the fracturing fluid system that glue can be thoroughly broken under low temperature formation；Wherein, crosslinking agent and fracturing liquid rubber-breaking accelerating agent
Mixed mixed liquor accounts for the 0.4~1.0% of the fracturing fluid system gross mass.
It should be noted that fracturing fluid after breaking gel can be used as prepad fluid or load fluid is used alone, whole can also use,
It is sequentially injected into according to prepad fluid, load fluid, displacement fluid.
The present invention by being added to deionized water, shape according to a certain percentage by organic ammonium salt, ferrous sulfate and sodium sulfite
After homogeneous mixture solotion, the solution that mixed solution forms clear is adjusted with pH adjusting agent, fracturing fluid is made and is promoted with glue is broken
Into agent, which can mix interworkings with promoter for rubber is broken with the various liquid additives of fracturing fluid system, not influence former fracturing fluid
Each performance of system；And at low temperatures, fracturing fluid system can be accelerated thoroughly to break glue.The present invention also applies pressure break simultaneously
Liquid breaks promoter for rubber and is prepared for a kind of fracturing fluid system, which, which has, is widely used, feature free from environmental pollution.
The above description is merely a specific embodiment, under the above-mentioned introduction of the present invention, those skilled in the art
Other improvement or deformation can be carried out on the basis of the above embodiments.It will be understood by those skilled in the art that above-mentioned tool
Body description only preferably explains that the purpose of the present invention, protection scope of the present invention should be subject to the protection scope in claims.
Claims (10)
1. a kind of fracturing fluid is with breaking promoter for rubber, which is characterized in that the fracturing fluid includes with broken promoter for rubber：Organic ammonium salt,
Ferrous sulfate, sodium sulfite, deionized water and pH adjusting agent.
2. the broken promoter for rubber of fracturing fluid as described in claim 1, which is characterized in that the organic ammonium salt, ferrous sulfate, Asia
The mass ratio of sodium sulphate, deionized water and PH conditioning agents is 3-7：1-3：1-6：83.5-94.9：0.1-0.5.
3. the broken promoter for rubber of fracturing fluid as described in claim 1, which is characterized in that the pH adjusting agent is hydrochloric acid, described
Organic ammonium salt is quaternary ammonium salt.
4. a kind of fracturing fluid preparation method for breaking promoter for rubber, which is characterized in that the described method comprises the following steps：
Organic ammonium salt, ferrous sulfate, sodium sulfite are weighed according to mass ratio；
The organic ammonium salt, ferrous sulfate, sodium sulfite finished will be weighed to be add to deionized water, after mixing, pH is added
Conditioning agent continues stirring to the solution for forming clear, the fracturing fluid is made with broken promoter for rubber；Wherein, organic ammonium salt,
Ferrous sulfate, sodium sulfite, deionized water and pH adjusting agent mass ratio be 3-7：1-3：1-6：83.5-94.9：0.1-0.5.
5. a kind of fracturing fluid system, which is characterized in that the fracturing fluid system includes：Fracturing fluid base fluid, crosslinking agent and such as right
It is required that the broken promoter for rubber of 1-3 any one of them fracturing fluids.
6. fracturing fluid system as claimed in claim 5, which is characterized in that the fracturing fluid base fluid is with modified polyacrylamide class
Polymer is formulated for host agent, and the crosslinking agent is anion surfactant.
7. a kind of preparation method of the fracturing fluid system described in claim 5, which is characterized in that this method includes：
Modified polyacrylamide Type of Collective object is dissolved in for host agent in clear water and is configured to fracturing fluid base fluid；
Crosslinking agent, fracturing fluid are added to broken promoter for rubber in the fracturing fluid base fluid, are uniformly mixed.
8. the method for claim 7, which is characterized in that
The crosslinking agent accounts for the 0.2~0.5% of the fracturing fluid system gross mass, and the fracturing fluid is accounted for described with broken promoter for rubber
The 0.2~0.5% of fracturing fluid system gross mass.
9. a kind of preparation method of the fracturing fluid system described in claim 5, which is characterized in that this method includes：
Modified polyacrylamide Type of Collective object is dissolved in for host agent in clear water and is configured to fracturing fluid base fluid；
By crosslinking agent and fracturing fluid with broken promoter for rubber according to 1:1 after mixing, is added in the fracturing fluid base fluid.
10. method as claimed in claim 9, which is characterized in that
Crosslinking agent and fracturing fluid with the broken mixed mixed liquor of promoter for rubber account for the fracturing fluid system gross mass 0.4~
1.0%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810123536.0A CN108276981A (en) | 2018-02-07 | 2018-02-07 | A kind of fracturing liquid rubber-breaking accelerating agent, fracturing fluid system and their preparation method |
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| CN201810123536.0A CN108276981A (en) | 2018-02-07 | 2018-02-07 | A kind of fracturing liquid rubber-breaking accelerating agent, fracturing fluid system and their preparation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109536153A (en) * | 2018-11-23 | 2019-03-29 | 中国石油集团渤海钻探工程有限公司 | Low temperature breaks colloid system and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102757776A (en) * | 2011-04-27 | 2012-10-31 | 克拉玛依新科澳石油天然气技术股份有限公司 | Low-temperature rubber crushing accelerator for well fracturing |
| US20130123149A1 (en) * | 2006-09-05 | 2013-05-16 | University Of Kansas | Polyelectrolyte Complexes for Oil and Gas Applications |
-
2018
- 2018-02-07 CN CN201810123536.0A patent/CN108276981A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130123149A1 (en) * | 2006-09-05 | 2013-05-16 | University Of Kansas | Polyelectrolyte Complexes for Oil and Gas Applications |
| CN102757776A (en) * | 2011-04-27 | 2012-10-31 | 克拉玛依新科澳石油天然气技术股份有限公司 | Low-temperature rubber crushing accelerator for well fracturing |
Non-Patent Citations (1)
| Title |
|---|
| 汪焱刚主编: "《现代有机合成导论》", 31 December 1999, 华中师范大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109536153A (en) * | 2018-11-23 | 2019-03-29 | 中国石油集团渤海钻探工程有限公司 | Low temperature breaks colloid system and preparation method thereof |
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Application publication date: 20180713 |