CN109957386A - Fracturing fluid of a kind of oil field extracted water preparation and preparation method thereof and its application - Google Patents
Fracturing fluid of a kind of oil field extracted water preparation and preparation method thereof and its application Download PDFInfo
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- CN109957386A CN109957386A CN201711400745.7A CN201711400745A CN109957386A CN 109957386 A CN109957386 A CN 109957386A CN 201711400745 A CN201711400745 A CN 201711400745A CN 109957386 A CN109957386 A CN 109957386A
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- 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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- 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
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
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Abstract
The present invention discloses fracturing fluid of a kind of oil field extracted water preparation and preparation method thereof and its application, is related to technical field of petroleum extraction.Specifically, which includes thickening agent, cosolvent, deoxygenation synergist, cleanup additive and oil field extracted water；Wherein, the thickening agent is xanthan gum.Fracturing fluid provided in an embodiment of the present invention passes through the network molecular structure and its stability using xanthan gum itself, improve the temperature resistant capability of prepared fracturing fluid, it avoids using crosslinking agent, and then oil field extracted water is eliminated to the adverse effect of fracturing fluid, it is prepared by the oil field extracted water that different quality can be used, and the fracturing fluid being prepared has good heat resistance, can meet fracturing technique requirement.In addition, the additive component of fracturing fluid use provided in an embodiment of the present invention is few, dosage is few, preparation process is simple, can effectively lower preparation cost.
Description
Technical field
The present invention relates to technical field of petroleum extraction, in particular to the fracturing fluid of a kind of oil field extracted water preparation and its preparation
Method and its application.
Background technique
On the one hand, as China, oil field, part enters middle and later periods exploitation, the moisture content of Produced Liquid constantly rises, part oil field
Thus even up to 80%-90% generates a large amount of oil field extracted waters；On the other hand, large-scale industrialized pressure break has been widely used
In oil-gas mining, individual well fracturing fluid dosage is up to thousands of sides to tens of thousands of sides, and water consumption is huge, and many regional freshwater resources in China
Scarcity is not able to satisfy massive hydraulic fracture water requirements.In conjunction with oil field development status and production at present is practical, and utilization is oil field produced
Water preparing fracturing fluid can effectively realize extraction water reuse, reduce the demand to freshwater resources.
Currently, domestic some technical staff have also carried out the research that recovered water prepares fracturing fluid, for example, Patent No.
The Chinese patent literature of CN201110126850.2 is disclosed a kind of simulated formation recovered water or is directly matched using stratum recovered water
The fracturing fluid of system provides the fracturing fluid for using a kind of simulated formation recovered water or directly utilizing the preparation of stratum recovered water, the pressure
Liquid is split to be made of base fluid and crosslinked fluid, base fluid mainly by account for total share of entire base fluid 91%~98.9% water, 1%~
8% inorganic salts and 0.1%~1.0% thickener composition.
Designer discovery in the prior art the prior art has at least the following problems:
It needs to add crosslinking agent in recovered water fracturing fluid process for preparation in the prior art, to form cross-linking reaction, Jin Erti
The temperature resistant capability of high fracturing fluid；And contain various metals ion and antisludging agent in the water quality due to preparing oil field extracted water used
Etc. the substance that can destroy cross-linking agents reaction, and the water quality of different oil field extracted water is different, using different oil field produced
Water often makes the temperature resistant capability of fracturing fluid decline to a great extent, and is unable to satisfy the needs of pressing crack construction, thus limits to different water
The application of the oil field extracted water of matter.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of prepared by oil field extracted water and not by oil field produced
Fracturing fluid of water quality limitation of water and preparation method thereof and its application.
Specifically, including technical solution below:
In a first aspect, provide a kind of fracturing fluid of oil field extracted water preparation, the fracturing fluid include thickening agent, cosolvent,
Deoxygenation synergist, cleanup additive and oil field extracted water；
Wherein, the thickening agent is xanthan gum.
In a kind of possible design, the oil field extracted water is the aqueous or oil field stratum water of the Produced Liquid in production,
Or drain is returned after the fracturing liquid rubber-breaking.
In a kind of possible design, the cosolvent is glycerine.
In a kind of possible design, the deoxygenation synergist is sodium thiosulfate.
In a kind of possible design, the cleanup additive is fluorocarbon surfactant.
It is in terms of 100 parts by the quality of the fracturing fluid, the quality of the thickening agent is 0.2- in a kind of possible design
0.8 part, the quality of the cosolvent is 1.0-5.0 parts, and the quality of the deoxygenation synergist is 0.03-0.3 parts, the cleanup additive
Quality be 0.05-0.1 parts, surplus is oil field extracted water.
Second aspect provides a kind of method for preparing above-mentioned fracturing fluid, comprising the following steps:
It adds water in container first, cosolvent, thickening agent, deoxygenation synergy is then successively added into the container
Agent, cleanup additive, stirring；
Wherein, the thickening agent is xanthan gum.
It is in terms of 100 parts by the quality of the fracturing fluid, the quality of the thickening agent is 0.2- in a kind of possible design
0.8 part, the quality of the cosolvent is 1.0-5.0 parts, and the quality of the deoxygenation synergist is 0.03-0.3 parts, the cleanup additive
Quality be 0.05-0.1 parts, surplus is oil field extracted water.The third aspect, provide it is a kind of about above-mentioned fracturing fluid in oil-gas reservoir
Application in fracturing reform.
Technical solution provided in an embodiment of the present invention the utility model has the advantages that
Fracturing fluid provided in an embodiment of the present invention, by utilizing the network molecular structure and its stability of xanthan gum itself,
The temperature resistant capability for improving prepared fracturing fluid is avoided using crosslinking agent, and then eliminates oil field extracted water to the unfavorable of fracturing fluid
It influencing, the fracturing fluid that the oil field extracted water that different quality can be used is prepared, and is prepared has good heat resistance,
Fracturing technique requirement can be met.
In addition, the additive component of fracturing fluid use provided in an embodiment of the present invention is few, dosage is few, preparation process is simple,
Preparation cost can effectively be lowered.
Specific embodiment
To keep technical solution of the present invention and advantage clearer, embodiment of the present invention will be made below further detailed
Thin description.Unless otherwise defined, all technical terms used in the embodiment of the present invention all have usual with those skilled in the art
The identical meaning understood.
On the one hand, the embodiment of the present invention provides a kind of fracturing fluid of oil field extracted water preparation, the fracturing fluid include thickening agent,
Cosolvent, deoxygenation synergist, cleanup additive and oil field extracted water；
Wherein, thickening agent is xanthan gum.
Fracturing fluid provided in an embodiment of the present invention is mentioned by network molecular structure and its stability using xanthan gum itself
The temperature resistant capability of fracturing fluid prepared by height is avoided using crosslinking agent, and then eliminates oil field extracted water to the unfavorable shadow of fracturing fluid
It rings, prepared by the oil field extracted water that different quality can be used, and prepare resulting fracturing fluid and have good heat resistance, can
Meet fracturing technique requirement.
The oil field extracted water that different quality can be used in the fracturing fluid of the embodiment of the present invention prepares fracturing fluid, reduces pressure break work
Demand of the industry to fresh water, protects freshwater resources, efficiently solves pressure break in oily area and is adopted with liquid with shortage of fresh water and oil field
Water yield is big and intractable contradiction.
Fracturing fluid provided in an embodiment of the present invention is not limited by the water quality of oil field extracted water, and illustratively, oil field extracted water is
Drain is returned from after the water or oil field stratum water or fracturing liquid rubber-breaking isolated in Produced Liquid in production.
It can be understood that " from the water isolated in Produced Liquid in production " is the aqueous of Produced Liquid in true long production；
" returning drain after fracturing liquid rubber-breaking " is to be back on ground, return drain after simple filtration after fracturing liquid rubber-breaking.
In addition, in the prior art, when regarding the fracturing outlet liquid containing crosslinking agent as recovered water again with liquid, need pair
It returns drain and carries out special process, to eliminate the influence of crosslinking agent, this complex treatment process and with high costs；With this phase
Than in the present invention, when fracturing outlet liquid being used as to recovered water again with liquid, it is only necessary to can be used as producing by simple filtration
Water is used again with liquid, reduces the cost of recycling.
It is understood that thickening agent is used to increase the viscosity of fracturing fluid, the temperature resistant capability of fracturing fluid, institute of the present invention are improved
The thickening agent of use is xanthan gum, since the tertiary structure of xanthan gum is bar-like the spiral being combined between double helix by non-covalent bond
Complex, the structure can make main chain from external environment such as: the destruction of acid, alkali, enzyme and temperature and other ions, to keep
The stability of xanthan gum, in the fracturing fluid, can effectively overcome various ion pair fracturing fluids in oil field extracted water to generate not
Benefit influences.The present invention, which is also not excluded for other, simultaneously has the substance for stablizing network molecular structure as thickening agent, for example, can be
Any one in modified polyacrylamide, polyvinyl alcohol copolymer etc..
It is non-uniform existing to avoid the occurrence of dispersion for improving dispersibility of the thickening agent in oil field extracted water for cosolvent
As, and then the viscosity (can be improved 40% or more) of recovered water fracturing fluid can be effectively improved, it is not tight to the specific choice of cosolvent
Lattice limit, and can be ethylene glycol, glycerine or the two mixture；Further, safe, dosage is used since glycerine has
Low characteristic, and for the viscosity of fracturing fluid can be effectively improved in the fracturing fluid, thickening agent dosage is reduced, fracturing fluid is improved
Clean-up performance, therefore, the cosolvent in the embodiment of the present invention are preferably glycerine, and glycerine used selection is sold on the market
Technical grade product.
Deoxygenation synergist is used to improve the heat resistance of fracturing fluid, is mainly used for consuming the oxygen in fracturing fluid, and in view of sulphur
The characteristics such as sodium thiosulfate is safe with using, and dosage is few, and storage facilitates, and for fracturing fluid can be effectively improved in the fracturing fluid
Temperature resistant capability, therefore, the deoxygenation synergist in the embodiment of the present invention is preferably sodium thiosulfate, and sodium thiosulfate used
Select the technical grade product sold on the market.Meanwhile the embodiment of the present invention does not limit yet and makes to other deoxygenation synergist
With.
Cleanup additive improves return row ability of the fracturing fluid in low-pressure stratum for reducing the surface and interface tension of fracturing fluid, right
The no considered critical of the specific choice of cleanup additive can be fluorocarbon surfactant, any in alkyl glycoside surfactant etc.
It is a kind of；Further, it is had excellent performance since fluorocarbon surfactant has, the characteristics such as dosage is low, and in the fracturing fluid, it can
The surface and interface tension of fracturing fluid is greatly reduced, improves return row of the fracturing fluid in low-pressure stratum and leads, therefore, in the embodiment of the present invention
Cleanup additive be preferably fluorocarbon surfactant, and fluorocarbon surfactant used selects the technical grade product sold on the market
?.
In above-mentioned fracturing fluid, there is no considered critical to the content of each component in fracturing fluid, it can be according to specific reality
Depending on situation.The present invention is evaluated and is tested by the performance to prepared fracturing fluid, preferably following proportions out: with pressure break
The quality of liquid is 100 parts of meters, and the quality of thickening agent can be 0.2-0.8 parts, and the quality of cosolvent can be 1.0-5.0 parts, and deoxygenation increases
The quality for imitating agent can be 0.03-0.3 parts, and the quality of cleanup additive can be 0.05-0.1 parts, and surplus is oil field extracted water.Meanwhile this
Inventive embodiments are also not excluded for the possibility of other proportions.
In the related art, in order to eliminate influence of the stratum recovered water to crosslinking agent, chelating agent is also added in fracturing fluid
Or the additives such as screener, for example, publication No. be CN104861954A Chinese patent literature disclose it is a kind of with oil field produced
Water prepares the thickening method of guanidine gum fracturing fluid, includes chelating agent, stabilizer, polyalcohol, again using fracturing fluid prepared by this method
Metallic compound, hydroxypropyl guar, sodium carbonate, sodium tetraborate crosslinking agent etc., in contrast to this, technical solution of the present invention does not need to add
Add chelating agent or screener etc., additive component is few, and dosage is few, and preparation process is simple, and preparation cost can be effectively reduced.
On the other hand, the embodiment of the present invention also provides a kind of method for preparing above-mentioned fracturing fluid, comprising the following steps: first
Oil field extracted water is added in container, cosolvent, thickening agent, deoxygenation synergist, cleanup additive are then successively added into container,
Stirring.
When preparing recovered water fracturing fluid, oil field extracted water is first added in a reservoir, opens stirring；Then again by hydrotropy
Agent, thickening agent, deoxygenation synergist, cleanup additive are successively added in container, why use this order of addition, are because first adding
Enter cosolvent, add thickening agent, deoxygenation synergist can make thickening agent preferably disperse, be swollen, is eventually adding cleanup additive energy
Foam generation is effectively reduced, foam overflow container is avoided and pollutes operating environment.
This uses the fracturing fluid of oil field extracted water preparation, and preparing process is simple, and use is safe.
To be uniformly mixed convenient for each component during the preparation process, settable used container is mixed tune device.
In addition, thickening agent preferably selects xanthan gum, concrete reason is same as above, and details are not described herein.
As described above, following proportion preferably can be used in a kind of possible embodiment: being with the quality of fracturing fluid
100 parts of meters, with graduated cylinder weigh 93.8-98.72 part oil field extracted waters be added it is mixed adjust in devices, adjust the mixed voltage for adjusting device for 50V~
55V is added cosolvent 1.0-5.0 parts, sequentially adds 0.2-0.8 parts of thickening agents, and 0.03-0.3 parts of deoxygenation synergist, cleanup additive
It 0.05-0.1 parts, adjusts device high speed to stir 3min mixed, obtains the fracturing fluid of oil field extracted water preparation.
In another aspect, the embodiment of the present invention also provides a kind of application of fracturing fluid in oil-gas reservoir fracturing reform.It will be above-mentioned
Fracturing fluid is applied in oil-gas reservoir fracturing reform, for carrying out pressing crack construction to oil-gas Layer.
Technical effect caused by the fracturing fluid of embodiment in order to further illustrate the present invention, combined with specific embodiments below
It is described as follows:
Embodiment 1
It is in terms of 100 parts by the quality of fracturing fluid, in which: the quality of thickening agent accounts for 0.8 part, and the quality of cosolvent accounts for 5.0 parts,
The quality of deoxygenation synergist accounts for 0.3 part, and the quality of cleanup additive accounts for 0.1 part, remaining is oil field extracted water (i.e. 93.8 parts)；
Wherein, thickening agent is xanthan gum, using technical grade product；
Cosolvent is glycerine, using technical grade product；
Deoxygenation synergist is sodium thiosulfate, using technical grade product；
Cleanup additive is fluorocarbon surfactant, using technical grade product；
Gel breaker is ammonium persulfate, using technical grade product.
When preparing fracturing fluid, 93.8 parts of oil field extracted waters are weighed with graduated cylinder and are added in mixed tune device, voltage 50V~55V is adjusted, adds
Enter 5.0 parts of cosolvent, sequentially adds 0.8 part of thickening agent, 0.3 part of deoxygenation synergist, 0.1 portion of cleanup additive adjusts height in device mixed
Speed stirring 3min.
In terms of 100 parts of total solution quality of the fracturing fluid prepared by gained oil field extracted water, addition accounts for 0.2 part of total solution quality
Gel breaker, be placed in insulating box, constant temperature 480min under the conditions of 140 DEG C of temperature, make the fracturing fluid at a constant temperature break glue.Measurement
Its performance indicator is as shown in table 1 below, and table 1 is performance indicator of the fracturing fluid of oil field extracted water preparation under the conditions of 140 DEG C.
140 DEG C of performance indicators of fracturing fluid that 1 oil field extracted water of table is prepared
From table 1 it follows that under conditions of 140 DEG C, using the indices of the fracturing fluid of the method for the present invention preparation
Professional standard can be reached, wherein matrix permeability of rock core loss ratio is better than SY/T5107-2016 " water-based fracturing less than 20%
Liquid method of evaluating performance " as defined in 30%；Residue content 206mg/L after breaking gel, better than the 600mg/L in professional standard；It is broken
Glue anti-dilative 95.2%, better than the 85% of professional standard.Thus can illustrate, each property of fracturing fluid prepared using the method for the present invention
Can preferably, application effect is obvious.
Embodiment 2
It is in terms of 100 parts by the quality of fracturing fluid, in which: the quality of thickening agent accounts for 0.3 part, and the quality of cosolvent accounts for 1.0 parts,
The quality of deoxygenation synergist accounts for 0.01 part, and the quality of cleanup additive accounts for 0.08 part, remaining mass parts is oil field extracted water (i.e. 98.61
Part)；
Wherein, thickening agent is xanthan gum, using technical grade product；
Cosolvent is glycerine, using technical grade product；
Deoxygenation synergist is sodium thiosulfate, using technical grade product；
Cleanup additive is fluorocarbon surfactant, using technical grade product；
Gel breaker is ammonium persulfate, using technical grade product.
When preparing fracturing fluid, 98.61 parts of oil field extracted waters are weighed with graduated cylinder and are added in mixed tune device, voltage 50V~55V is adjusted,
1.0 parts of cosolvent are added, sequentially adds 0.3 part of thickening agent, 0.01 part of deoxygenation synergist, 0.08 portion of cleanup additive adjusts device mixed
High speed stirs 3min.
In terms of 100 parts of total solution quality of the fracturing fluid prepared by gained oil field extracted water, addition accounts for 0.1 part of total solution quality
Gel breaker, be placed in insulating box, constant temperature 600min under the conditions of 60 DEG C of temperature, make the fracturing fluid at a constant temperature break glue.Measurement
Its performance indicator is as shown in table 2 below, and table 2 is performance indicator of the fracturing fluid of oil field extracted water preparation under the conditions of 60 DEG C.
60 DEG C of performance indicators of fracturing fluid that 2 oil field extracted water of table is prepared
From Table 2, it can be seen that the indices using the fracturing fluid of the method for the present invention preparation are equal under conditions of 60 DEG C
Professional standard can be reached, wherein matrix permeability of rock core loss ratio is 15.9%, is better than SY/T5107-2016 " aqueous fracturing fluid
Method of evaluating performance " as defined in 30%；Residue content 163mg/L after breaking gel, better than the 600mg/L in professional standard；Broken glue
Liquid anti-dilative 91.9%, better than the 85% of professional standard.Thus can illustrate, each performance of fracturing fluid prepared using the method for the present invention
Preferably, application effect is obvious.
Embodiment 3
It is in terms of 100 parts by the quality of fracturing fluid, in which: the quality of thickening agent accounts for 0.5 part, and the quality of cosolvent accounts for 3.0 parts,
The quality of deoxygenation synergist accounts for 0.05 part, and the quality of cleanup additive accounts for 0.1 part, remaining is oil field extracted water (i.e. 96.35 parts)；
Wherein, thickening agent is xanthan gum, using technical grade product；
Cosolvent is glycerine, using technical grade product；
Deoxygenation synergist is sodium thiosulfate, using technical grade product；
Cleanup additive is fluorocarbon surfactant, using technical grade product；
Gel breaker is ammonium persulfate, using technical grade product.
When preparing fracturing fluid, 96.35 parts of oil field extracted waters are weighed with graduated cylinder and are added in mixed tune device, voltage 50V~55V is adjusted,
3.0 parts of cosolvent are added, sequentially adds 0.5 part of thickening agent, 0.05 part of deoxygenation synergist, 0.1 portion of cleanup additive is adjusted in device mixed
High-speed stirred 3min.
In terms of 100 parts of total solution quality of the fracturing fluid prepared by gained oil field extracted water, addition accounts for total solution quality 0.12
The gel breaker of part, is placed in insulating box, constant temperature 480min under the conditions of 110 DEG C of temperature, and the fracturing fluid is made to break glue at a constant temperature.It surveys
Its fixed performance indicator is as shown in table 3 below, and table 3 is performance indicator of the fracturing fluid of oil field extracted water preparation under the conditions of 110 DEG C.
110 DEG C of performance indicators of fracturing fluid that 3 oil field extracted water of table is prepared
From table 3 it is observed that under conditions of 110 DEG C, using the indices of the fracturing fluid of the method for the present invention preparation
Professional standard can be reached, wherein matrix permeability of rock core loss ratio 17.1% is better than SY/T5107-2016 " aqueous fracturing fluid
Method of evaluating performance " as defined in 30%；Residue content 164mg/L after breaking gel, better than the 600mg/L in professional standard；Broken glue
Liquid anti-dilative 93.9%, better than the 85% of professional standard.Thus can illustrate, each performance of fracturing fluid prepared using the method for the present invention
Preferably, application effect is obvious.
Embodiment 4
Field test, test well (Dagang Oilfield, G78-52 well) pressure break well section are carried out using the fracturing fluid of above-described embodiment 3
In 2954.7m-3004m, pump note fracturing fluid 267.9m3, proppant 24.4m3, operational discharge capacity 3.2m3/min.Measure pressure break front and back
Yield using fracturing fluid prepared by the present invention and conventional fracturing fluid is as shown in table 4.
Table 4 applies different fracturing fluid Contrast on effect tables of data with block offset well
As can be seen from Table 4, which presses day before yesterday oil-producing 1.9m3/ d, initial stage day oil-producing 11.7m after well pressure3/ d, comparison are normal
Fracturing fluid is advised, fracturing effect is obvious.
Further, the fracturing fluid recovery (backflow) liquid of above-mentioned test well is used as to fracturing fluid system after physical method desanding, oil removing
When spare water reuses, according to pressure break liquid and preparation method thereof preparing fracturing fluid in embodiment 3, its viscosity temperature characteristic such as 5 institute of table is measured
Show.
5 different quality of table prepares 110 DEG C of recovered water fracturing fluid viscous warm tables of data
As can be seen from Table 5, using the fracturing fluid viscosity temperature characteristic and former recovered water pressure break fluidity for returning the preparation of drain filtrate
It can be consistent；Further, constant temperature 480min under the conditions of 110 DEG C of temperature, after breaking gel breaking glue solution viscosity 1.57mPas, residue
Content 185.6mg/L, the fracturing fluid that slightly better than former recovered water is prepared.
The experiment results show that oil field extracted water preparation method provided in an embodiment of the present invention, can pass through fracturing fluid recovery (backflow) liquid
It is reused directly as fracturing fluid preparation with water after simple filtration, and it is excellent to prepare resulting fracturing fluid property.
The above is merely for convenience of it will be understood by those skilled in the art that technical solution of the present invention, not to limit
The present invention.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of invention.
Claims (9)
1. a kind of fracturing fluid of oil field extracted water preparation, which is characterized in that the fracturing fluid includes thickening agent, cosolvent, deoxygenation
Synergist, cleanup additive and oil field extracted water；
Wherein, the thickening agent is xanthan gum.
2. fracturing fluid according to claim 1, which is characterized in that the oil field extracted water is to divide from Produced Liquid in production
Drain is returned after the water or oil field stratum water that separate out or the fracturing liquid rubber-breaking.
3. fracturing fluid according to claim 1, which is characterized in that the cosolvent is glycerine.
4. fracturing fluid according to claim 1, which is characterized in that the deoxygenation synergist is sodium thiosulfate.
5. fracturing fluid according to claim 1, which is characterized in that the cleanup additive is fluorocarbon surfactant.
6. fracturing fluid according to claim 1, which is characterized in that by the quality of the fracturing fluid be 100 parts in terms of, it is described thick
The quality of agent is 0.2-0.8 parts, and the quality of the cosolvent is 1.0-5.0 parts, and the quality of the deoxygenation synergist is 0.03-
0.3 part, the quality of the cleanup additive is 0.05-0.1 parts, and surplus is oil field extracted water.
7. a kind of method for preparing fracturing fluid described in any one of claims 1-6, which comprises the following steps:
It adds water in container first, cosolvent is then sequentially added into the container, thickening agent, deoxygenation synergist, is helped
Arrange agent, stirring；
Wherein, the thickening agent is xanthan gum.
8. the method according to the description of claim 7 is characterized in that being the thickening in terms of 100 parts by the quality of the fracturing fluid
The quality of agent is 0.2-0.8 parts, and the quality of the cosolvent is 1.0-5.0 parts, and the quality of the deoxygenation synergist is 0.03-
0.3 part, the quality of the cleanup additive is 0.05-0.1 parts, and surplus is oil field extracted water.
9. a kind of application of fracturing fluid described in any one of claims 1-6 in oil-gas reservoir fracturing reform.
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| CN118005840A (en) * | 2024-04-08 | 2024-05-10 | 西南石油大学 | Thermal thickening self-breaking fracturing fluid thickener, and preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101970598A (en) * | 2007-08-10 | 2011-02-09 | 哈利伯顿能源服务公司 | Treatment fluids comprising clarified xanthan and associated methods |
| CN103275691A (en) * | 2013-06-03 | 2013-09-04 | 深圳市百勤石油技术有限公司 | Reusable slippery water fracturing fluid for shale oil and gas reservoir |
| CN103666437A (en) * | 2012-09-18 | 2014-03-26 | 中国石油天然气股份有限公司 | Fracturing fluid |
| CN103740355A (en) * | 2014-01-08 | 2014-04-23 | 中国石油天然气股份有限公司 | High-salinity water-based modified xanthan gum fracturing fluid and preparation method thereof |
| CN104797680A (en) * | 2013-01-14 | 2015-07-22 | 巴斯夫欧洲公司 | Method of fracturing subterranean formations |
| WO2016102126A1 (en) * | 2014-12-22 | 2016-06-30 | Tougas Oilfield Solutions Gmbh | Method for reducing the viscosity of viscosified fluids for applications in natural gas and oil fields |
-
2017
- 2017-12-22 CN CN201711400745.7A patent/CN109957386A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101970598A (en) * | 2007-08-10 | 2011-02-09 | 哈利伯顿能源服务公司 | Treatment fluids comprising clarified xanthan and associated methods |
| CN103666437A (en) * | 2012-09-18 | 2014-03-26 | 中国石油天然气股份有限公司 | Fracturing fluid |
| CN104797680A (en) * | 2013-01-14 | 2015-07-22 | 巴斯夫欧洲公司 | Method of fracturing subterranean formations |
| CN103275691A (en) * | 2013-06-03 | 2013-09-04 | 深圳市百勤石油技术有限公司 | Reusable slippery water fracturing fluid for shale oil and gas reservoir |
| CN103740355A (en) * | 2014-01-08 | 2014-04-23 | 中国石油天然气股份有限公司 | High-salinity water-based modified xanthan gum fracturing fluid and preparation method thereof |
| WO2016102126A1 (en) * | 2014-12-22 | 2016-06-30 | Tougas Oilfield Solutions Gmbh | Method for reducing the viscosity of viscosified fluids for applications in natural gas and oil fields |
Non-Patent Citations (2)
| Title |
|---|
| 明华: "黄原胶压裂液特性与应用前景分析", 《精细石油化工》 * |
| 许明标: "《现代储层保护技术》", 31 December 2016, 中国地质大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118005840A (en) * | 2024-04-08 | 2024-05-10 | 西南石油大学 | Thermal thickening self-breaking fracturing fluid thickener, and preparation method and application thereof |
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