CN108587594A - A kind of processing method of fracturing outlet liquid and its application - Google Patents
A kind of processing method of fracturing outlet liquid and its application Download PDFInfo
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- CN108587594A CN108587594A CN201810342459.8A CN201810342459A CN108587594A CN 108587594 A CN108587594 A CN 108587594A CN 201810342459 A CN201810342459 A CN 201810342459A CN 108587594 A CN108587594 A CN 108587594A
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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
- C09K8/685—Compositions based on water or polar solvents containing organic compounds containing cross-linking agents
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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
- C09K8/84—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
- C09K8/887—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
Abstract
The invention belongs to acidification of oil field fracturing technique fields, and in particular to a kind of processing method of fracturing outlet liquid and its application.The processing method of the fracturing outlet liquid, includes the following steps：（1）The broken glue of depth is carried out to returning drain：Biological enzyme breaker is added into fracturing outlet liquid, 24 72h are stood after stirring；（2）Ferrous ion precipitates：Oxidant is added, stirring adds sodium hydroxide, stirs；（3）Calcium ions and magnesium ions are complexed：Calcium ions and magnesium ions complexing agent, stirring is added；（4）The flocculation of suspended matter and bacterium：Polyacrylamide, stirring is added；（5）Filtering, filtrate are treated fracturing outlet liquid.Meanwhile the invention also discloses the applications that treated fracturing outlet liquid is used to configure guanidine gum fracturing fluid.The processing method of fracturing outlet liquid provided by the invention, dissociating after processing, calcium ions and magnesium ions salinity is small, and ferrous ion concentration is small, and organic impurity content is few, and treated returns the water quality requirement that drain conforms to preparation guanidine gum fracturing fluid.
Description
Technical field
The invention belongs to acidification of oil field fracturing technique fields, and in particular to a kind of processing method of fracturing outlet liquid and its answer
With.
Background technology
Hydraulic fracturing effectively increases production Steady product technique measure and is widely used to extend oil field before bringing in a well as one kind,
Especially shale gas horizontal well volume fracturing pattern is paid more and more attention in recent years, and exploitation scale increases, average each well water consumption 1-3
Ten thousand m3, therefore bring many technical barriers to oil field：Extend oil field first and is located in hills or mountain area, it is populous near well site,
Surface water is short, and water source is mainly tap water and river water, such as extensive progress volume fracturing operation strong by seasonal effect, pressure
It splits construction water to be bound to generate imbalance between supply and demand with local life, industrial water, to constrain the exploitation of oil-gas reservoir.Secondly with
The gradual increase of pressing crack construction well time being on the increase with scope of construction item, the lifting rate that returns of generation increases year by year, such as basis
The row of returning for returning drain leads variation（10%~70%）, every mouthful of horizontal flat shale gas well fracturing outlet liquid of saliva is about in 2000m3Left and right, pressure break
Return that drain component is very complicated, natural plant gum and residue containing a large amount of not broken glue be outstanding, float or gelling agent, bacterium, antisludging agent, drop
The chemical addition agents such as resist, polyfunctional surfactant, a large amount of spent acid and inorganic salts.In these chemical addition agents sometimes
Containing there are many toxic and be difficult to biodegradable macromolecule organic, some also contain the heavy metal substances such as chromium, zirconium.Therefore, if
Processing or mishandling not in time, can cause the pollution of construction area surface water, or even can destroy ecological environment, can not also recycle profit
With.
On the other hand, fracturing outlet liquid is compared with fresh water, although with oil content height, high organic content, pH change greatly,
The features such as suspension content is high, salinity is high, and there are a large amount of iron bacteria, sulfate reduction microbial inoculum, saprophytic bacterias, but this high mine
The drain of returning of change degree not only can be good with stratum compatible, and can prevent clay swell.If fracturing outlet liquid is through physical chemistry side
Method processing can reach water filling or prepare requirement of the fracturing technology to water quality, drain preparing fracturing fluid is returned with treated compared with clear water
More it is beneficial to the protection to reservoir, reduce pollution and reduces development cost.
Extend calcium ions and magnesium ions salinity in the fracturing outlet liquid of oil field Chang-6 reservoir and is both greater than 3000ppm substantially.Currently, pressure
Split that return the processing mode of drain be mainly outer row and three kinds of modes of reuse after re-injection, processing.In the prior art, polymeric aluminum is mostly used
Processing, then by post-processings such as filterings, still, the removing object of this processing mode is mainly solid suspension, microorganism
And bacterium, calcium ions and magnesium ions salinity can not be changed, although the technical indicator of oil-field flooding can be met, cannot be directly used to
Prepare guanidine gum fracturing fluid.It is existing the study found that inorganic salt content is affected to the dissolubility of guanidine glue, preparing fracturing fluid,
Increase the risk of pressing crack construction failure.Meanwhile being handled using polymeric aluminum, certain aluminium ion can be remained in fracturing outlet liquid,
Aluminum ions presence can cause the fracturing fluid for much polymerizeing species that can not prepare.
Invention content
In view of the drawbacks of the prior art, the present invention provides a kind of processing method of fracturing outlet liquid, while providing the pressure break
The application of drain is returned, i.e., after treatment by fracturing outlet liquid, for configuring fracturing fluid.
A kind of processing method of fracturing outlet liquid, includes the following steps：
（1）The broken glue of depth is carried out to returning drain：Biological enzyme breaker is added into fracturing outlet liquid according to the dosage of 5-20ppm,
30 min are stirred, 24-72h is then allowed to stand；
（2）Ferrous ion precipitates：According to the dosage of 0.01-0.5% to step（1）Oxygen is added in processed fracturing outlet liquid
Agent stirs 10-30min, and sodium hydroxide is added according still further to the dosage of 0.005-0.03%, stirs 30 min；
（3）Calcium ions and magnesium ions are complexed：According to the dosage of 0.005-0.5% to step（2）Calcium and magnesium is added in processed fracturing outlet liquid
Ionic complexing agent stirs 30 min；
（4）The flocculation of suspended matter and bacterium：According to the dosage of 0.001-0.02% to step（3）In processed fracturing outlet liquid
Polyacrylamide is added, stirs 40 min；
（5）Filtering, filtrate is treated fracturing outlet liquid, spare；
Wherein, the calcium ions and magnesium ions complexing agent is any one in methylenephosphonic acid salt, sodium citrate, sodium tripolyphosphate or sodium oxalate
Kind.
Preferably, the methylenephosphonic acid salt is ethylene diamine tetra methylene phosphonic acid sodium, diethylene triamine pentamethylene phosphonic salt or amine
Any one in three methene phosphonates.
Preferably, the oxidant is any one in ammonium persulfate, potassium peroxydisulfate, sodium peroxydisulfate or hydrogen peroxide.
Preferably, the biological enzyme breaker is SUN-Y600 biologies enzyme breaker or enzyme doctor.
Preferably, the polyacrylamide is cationic polyacrylamide or anionic polyacrylamide.
Preferably, the molecular weight of the polyacrylamide is between 3,000,000-800 ten thousand, degree of hydrolysis 25-35%.
A kind of application of fracturing outlet liquid, the application are to handle to press using claim 1-6 any one of them methods
It splits and returns drain, fracturing outlet liquid is used to configure guanidine gum fracturing fluid by treated.
Preferably, the guanidine gum fracturing fluid is prepared obtain by the following method：
（a）Prepare base fluid：To potassium chloride, guanidine rubber powder, cleanup additive, glutaraldehyde is sequentially added in treated fracturing outlet liquid, stir
Mixing is mixed, it is 5.5-7.5 to adjust pH using pH adjusting agent, stands 2-3h, obtains base fluid；The pH adjusting agent be NaOH,
Na2CO3, citric acid, hydrochloric acid；
（b）Preparing fracturing fluid：Organic borate cross-linker is added into base fluid, is stirred under the rotating speed of 100-500rpm, you can；
Wherein, it is described treated return discharge fracturing fluid and potassium chloride, guanidine rubber powder, cleanup additive, glutaraldehyde mass ratio be 100：
0.2:0.35:0.2:0.005；
The mass ratio of the base fluid and organic borate cross-linker is 100:0.4.
Preferably, the cleanup additive is cleanup additive BD-3078.
Preferably, the organic borate cross-linker is YTB-03 type organic borate cross-linkers.
Heretofore described dosage refers to account for the mass ratio of untreated fracturing outlet liquid.
The broken glue of depth is carried out to returning drain fracturing fluid so that the guanidine glue residue words in drain is returned, convenient at subsequent flocculation
Reason.
Advantages of the present invention：
The processing method of fracturing outlet liquid provided by the invention, it is influential on guanidine gum fracturing fluid without introducing in processing procedure
Aluminium ion, calcium ions and magnesium ions salinity of dissociating after processing are less than 3000mg/L, and ferrous ion concentration is less than 0.3 mg/L, organic impurities
Content is few, and treated returns the water quality requirement that drain conforms to preparation guanidine gum fracturing fluid, and processing method is simple, can be live to pressure break
It returns drain to be handled, storage can be concentrated after processing, can be used to prepare guanidine gum fracturing fluid.
Specific implementation mode
The raw material fracturing outlet liquid of use, which is derived from, extends oil field A wells, and water analysis data are as follows：
。
Embodiment 1
1. a kind of processing method of fracturing outlet liquid, includes the following steps：
（1）The broken glue of depth is carried out to returning drain：SUN-Y600 biological enzyme is added into fracturing outlet liquid according to the dosage of 5ppm to break
Jelly, stirring, is then allowed to stand for 24 hours；
（2）Ferrous ion precipitates：According to 0.01% dosage to step（1）Oxidant is added in processed fracturing outlet liquid
Ammonium persulfate stirs 10min, and sodium hydroxide, stirring is added according still further to 0.005% dosage；
（3）Calcium ions and magnesium ions are complexed：According to 0.005% dosage to step（2）Calcium ions and magnesium ions are added in processed fracturing outlet liquid
Complexing agent, stirring；The calcium ions and magnesium ions complexing agent is ethylene diamine tetra methylene phosphonic acid sodium；
（4）The flocculation of suspended matter and bacterium：According to 0.001% dosage to step（3）Sun is added in processed fracturing outlet liquid
Cationic polyacrylamide, stirring；Between 3,000,000-800 ten thousand, degree of hydrolysis is the molecular weight of the cationic polyacrylamide
25%；
（5）Filtering, filtrate is treated fracturing outlet liquid, spare.
2. the above method treated fracturing outlet liquid will be used for configuring guanidine gum fracturing fluid, the guanidine gum fracturing fluid
It prepares and obtains by the following method：
（a）Prepare base fluid：To sequentially adding potassium chloride, guanidine rubber powder, cleanup additive BD-3078, penta in treated fracturing outlet liquid
Dialdehyde is stirred, and it is 7.5 to adjust pH using NaOH, stands 2h, obtains base fluid；It is wherein, described that treated returns discharge fracturing fluid
Mass ratio with potassium chloride, guanidine rubber powder, cleanup additive BD-3078, glutaraldehyde is 100：0.2:0.35:0.2:0.005；
（b）Preparing fracturing fluid：YTB-03 type organic borate cross-linkers are added into base fluid, are stirred under the rotating speed of 100rpm,
；The mass ratio of the base fluid and YTB-03 type organic borate cross-linkers is 100:0.4.
Embodiment 2
1. a kind of processing method of fracturing outlet liquid, includes the following steps：
（1）The broken glue of depth is carried out to returning drain：Enzyme doctor is added into fracturing outlet liquid according to the dosage of 20ppm, stirs, then
Stand 72h；
（2）Ferrous ion precipitates：According to 0.5% dosage to step（1）Oxidant mistake is added in processed fracturing outlet liquid
Potassium sulfate stirs 30min, and sodium hydroxide, stirring is added according still further to 0.03% dosage；
（3）Calcium ions and magnesium ions are complexed：According to 0.5% dosage to step（2）Calcium ions and magnesium ions network is added in processed fracturing outlet liquid
Mixture, stirring；The calcium ions and magnesium ions complexing agent is sodium citrate；
（4）The flocculation of suspended matter and bacterium：According to 0.02% dosage to step（3）It is added in processed fracturing outlet liquid cloudy
Cationic polyacrylamide, stirring；Between 3,000,000-800 ten thousand, degree of hydrolysis is the molecular weight of the anionic polyacrylamide
35%；
（5）Filtering, filtrate is treated fracturing outlet liquid, spare.
2. the above method treated fracturing outlet liquid will be used for configuring guanidine gum fracturing fluid, the guanidine gum fracturing fluid
It prepares and obtains by the following method：
（a）Prepare base fluid：To sequentially adding potassium chloride, guanidine rubber powder, cleanup additive BD-3078, penta in treated fracturing outlet liquid
Dialdehyde is stirred, and uses Na2CO3It is 7.0 to adjust pH, stands 3h, obtains base fluid；It is wherein, described that treated returns row pressure and split
The mass ratio of liquid and potassium chloride, guanidine rubber powder, cleanup additive BD-3078, glutaraldehyde is 100：0.2:0.35:0.2:0.005；
（b）Preparing fracturing fluid：YTB-03 type organic borate cross-linkers are added into base fluid, are stirred under the rotating speed of 500rpm,
；The mass ratio of the base fluid and YTB-03 type organic borate cross-linkers is 100:0.4.
Embodiment 3
1. a kind of processing method of fracturing outlet liquid, includes the following steps：
（1）The broken glue of depth is carried out to returning drain：SUN-Y600 biological enzyme is added into fracturing outlet liquid according to the dosage of 10ppm to break
Jelly, stirring, is then allowed to stand 36h；
（2）Ferrous ion precipitates：According to 0.1% dosage to step（1）Oxidant mistake is added in processed fracturing outlet liquid
Sodium sulphate stirs 18min, and sodium hydroxide, stirring is added according still further to 0.01% dosage；
（3）Calcium ions and magnesium ions are complexed：According to 0.1% dosage to step（2）Calcium ions and magnesium ions network is added in processed fracturing outlet liquid
Mixture, stirring；The calcium ions and magnesium ions complexing agent is sodium tripolyphosphate；
（4）The flocculation of suspended matter and bacterium：According to 0.008% dosage to step（3）Sun is added in processed fracturing outlet liquid
Cationic polyacrylamide, stirring；Between 3,000,000-800 ten thousand, degree of hydrolysis is the molecular weight of the cationic polyacrylamide
28%；
（5）Filtering, filtrate is treated fracturing outlet liquid, spare.
2. the above method treated fracturing outlet liquid will be used for configuring guanidine gum fracturing fluid, the guanidine gum fracturing fluid
It prepares and obtains by the following method：
（a）Prepare base fluid：To sequentially adding potassium chloride, guanidine rubber powder, cleanup additive BD-3078, penta in treated fracturing outlet liquid
Dialdehyde is stirred, and the use of lemon acid for adjusting pH is 6.0, is stood 2.5h, obtain base fluid；Wherein, treated the row of returning
The mass ratio of fracturing fluid and potassium chloride, guanidine rubber powder, cleanup additive BD-3078, glutaraldehyde is 100：0.2:0.35:0.2:0.005；
（b）Preparing fracturing fluid：YTB-03 type organic borate cross-linkers are added into base fluid, are stirred under the rotating speed of 300rpm,
；The mass ratio of the base fluid and YTB-03 type organic borate cross-linkers is 100:0.4.
Embodiment 4
1. a kind of processing method of fracturing outlet liquid, includes the following steps：
（1）The broken glue of depth is carried out to returning drain：SUN-Y600 biological enzyme is added into fracturing outlet liquid according to the dosage of 15ppm to break
Jelly, stirring, is then allowed to stand 48h；
（2）Ferrous ion precipitates：According to 0.3% dosage to step（1）It is double that oxidant is added in processed fracturing outlet liquid
Oxygen water stirs 25min, and sodium hydroxide, stirring is added according still further to 0.02% dosage；
（3）Calcium ions and magnesium ions are complexed：According to 0.3% dosage to step（2）Calcium ions and magnesium ions network is added in processed fracturing outlet liquid
Mixture, stirring；The calcium ions and magnesium ions complexing agent is sodium oxalate；
（4）The flocculation of suspended matter and bacterium：According to 0.015% dosage to step（3）It is added in processed fracturing outlet liquid cloudy
Cationic polyacrylamide, stirring；Between 3,000,000-800 ten thousand, degree of hydrolysis is the molecular weight of the anionic polyacrylamide
32%；
（5）Filtering, filtrate is treated fracturing outlet liquid, spare.
2. the above method treated fracturing outlet liquid will be used for configuring guanidine gum fracturing fluid, the guanidine gum fracturing fluid
It prepares and obtains by the following method：
（a）Prepare base fluid：To sequentially adding potassium chloride, guanidine rubber powder, cleanup additive BD-3078, penta in treated fracturing outlet liquid
Dialdehyde is stirred, and the use of salt acid for adjusting pH is 5.5, is stood 2.5h, obtain base fluid；It is wherein, described that treated returns row pressure
The mass ratio for splitting liquid and potassium chloride, guanidine rubber powder, cleanup additive BD-3078, glutaraldehyde is 100：0.2:0.35:0.2:0.005；
（b）Preparing fracturing fluid：YTB-03 type organic borate cross-linkers are added into base fluid, are stirred under the rotating speed of 300rpm,
；The mass ratio of the base fluid and YTB-03 type organic borate cross-linkers is 100:0.4.
Comparative example
The method that fracturing outlet liquid is handled using typical polymerization aluminium, it is specific as follows：
Carry out following steps respectively into 1000mL fracturing outlet liquids：1mg sodium hydroxides are added in a（Chip solid）, that 4mg is added is poly-
Close aluminium chloride（It is powdered）, stir 1min and be mixed：200mg polyacrylamide solutions are added in b（Polyacrylamide solution concentration
It is 1%, molecular weight is 8,000,000）；C stirs 1min to fracturing outlet liquid with 800 turns/min, by supernatant after quiescent settling 10min
Drain treatment fluid is returned as the processing of typical polymerization aluminium method, for preparing guanidine gum fracturing fluid.
2. will use it is above-mentioned using typical polymerization aluminium treated fracturing outlet liquid for configuring guanidine gum fracturing fluid, configure
The method of guanidine gum fracturing fluid is the same as embodiment 4.
One, performance detections
1. the water quality after detecting fracturing outlet liquid before treatment, the results are shown in Table 1.With no processed raw material fracturing outlet liquid
As blank control.
1 water analysis of table
2. the performance for the guanidine gum fracturing fluid that each embodiment of detection is prepared
Reflect its anti-degradation capability with the viscosity of base fluid after static placement 48h, viscosity is higher, and its anti-degradation capability is better；To match
The guanidine gum fracturing fluid that makes stands 15min and crosses whether 20-40 mesh quartz sand is layered or sand setting amount reflects sand suspension ability, sinks
Sand amount is the smaller the better；Reflect that its shears temperature resistant capability at 50 DEG C with rotational speed rate 170-s shearing 1h viscosity with guanidine gum fracturing fluid,
The higher the better；Degree is hung to be crosslinked the glass bar after 1min and reacts its frozen glue viscoplasticity, the viscoelastic for showing frozen glue can be hung
Property it is qualified；Show the crosslinking uniformity coefficient of fracturing fluid gel with the size of crosslinking time, smaller, crosslinking degree is more uneven
Even, when less than 5s, crosslinking agent can form crosslinking block in fracturing fluid, and fracturing fluid gel is made not have prop-carrying capacity, general to hand over
It is proper in 20-90s to join the time.
Using no processed raw material fracturing outlet liquid according to embodiment 4 preparation method prepare guanidine gum fracturing fluid as
Blank control 1, the guanidine gum fracturing fluid prepared using clear water according to the preparation method of embodiment 4 the results are shown in Table 2 as blank control 2.
The performance detection of 2 guanidine gum fracturing fluid of table
The processing method for using this patent as can be seen from Table 2 can make the fracturing fluid for returning drain preparation meet the water base pressure in scene
To the requirement of fracturing fluid during splitting.
Claims (10)
1. a kind of processing method of fracturing outlet liquid, it is characterised in that：Include the following steps：
（1）The broken glue of depth is carried out to returning drain：Biological enzyme breaker is added into fracturing outlet liquid according to the dosage of 5-20ppm,
30 min are stirred, 24-72h is then allowed to stand；
（2）Ferrous ion precipitates：According to the dosage of 0.01-0.5% to step（1）Oxygen is added in processed fracturing outlet liquid
Agent stirs 10-30min, and sodium hydroxide is added according still further to the dosage of 0.005-0.03%, stirs 30 min；
（3）Calcium ions and magnesium ions are complexed：According to the dosage of 0.005-0.5% to step（2）Calcium and magnesium is added in processed fracturing outlet liquid
Ionic complexing agent stirs 30 min；
（4）The flocculation of suspended matter and bacterium：According to the dosage of 0.001-0.02% to step（3）In processed fracturing outlet liquid
Polyacrylamide is added, stirs 40 min；
（5）Filtering, filtrate is treated fracturing outlet liquid, spare；
Wherein, the calcium ions and magnesium ions complexing agent is any one in methylenephosphonic acid salt, sodium citrate, sodium tripolyphosphate or sodium oxalate
Kind.
2. the processing method of fracturing outlet liquid according to claim 1, it is characterised in that：The methylenephosphonic acid salt is second two
Any one in three methene phosphonate of four methene Alendronate of amine, diethylene triamine pentamethylene phosphonic salt or amine.
3. the processing method of fracturing outlet liquid according to claim 1, it is characterised in that：The oxidant is persulfuric acid
Any one in ammonium, potassium peroxydisulfate, sodium peroxydisulfate or hydrogen peroxide.
4. the processing method of fracturing outlet liquid according to claim 1, it is characterised in that：It is described biology enzyme breaker be
SUN-Y600 biologies enzyme breaker or enzyme doctor.
5. the processing method of fracturing outlet liquid according to claim 1, it is characterised in that：The polyacrylamide be sun from
Sub- polyacrylamide or anionic polyacrylamide.
6. the processing method of fracturing outlet liquid according to claim 5, it is characterised in that：The molecule of the polyacrylamide
Amount is between 3,000,000-800 ten thousand, degree of hydrolysis 25-35%.
7. a kind of application of fracturing outlet liquid, it is characterised in that：Pressure break is handled using claim 1-6 any one of them methods
Drain is returned, fracturing outlet liquid is used to configure guanidine gum fracturing fluid by treated.
8. the application of fracturing outlet liquid according to claim 7, it is characterised in that：The guanidine gum fracturing fluid is by following
What method was prepared：
（a）Prepare base fluid：To potassium chloride, guanidine rubber powder, cleanup additive, glutaraldehyde is sequentially added in treated fracturing outlet liquid, stir
Mixing is mixed, it is 5.5-7.5 to adjust pH using pH adjusting agent, stands 2-3h, obtains base fluid；The pH adjusting agent be NaOH,
Na2CO3, citric acid, hydrochloric acid；
（b）Preparing fracturing fluid：Organic borate cross-linker is added into base fluid, is stirred under the rotating speed of 100-500rpm, you can；
Wherein, it is described treated return discharge fracturing fluid and potassium chloride, guanidine rubber powder, cleanup additive, glutaraldehyde mass ratio be 100：
0.2:0.35:0.2:0.005；
The mass ratio of the base fluid and organic borate cross-linker is 100:0.4.
9. the application of fracturing outlet liquid according to claim 8, it is characterised in that：The cleanup additive is cleanup additive BD-
3078。
10. the application of fracturing outlet liquid according to claim 8, it is characterised in that：The organic borate cross-linker is YTB-
03 type organic borate cross-linker.
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| CN109574394A (en) * | 2018-12-21 | 2019-04-05 | 陕西延长油田压裂材料有限公司 | A kind of fracturing outlet liquid processing method |
| CN109852365A (en) * | 2018-12-17 | 2019-06-07 | 中国石油天然气股份有限公司 | Prepare method, the guanidine gum fracturing fluid by this method preparation and its application of guanidine gum fracturing fluid |
| CN111704263A (en) * | 2020-05-19 | 2020-09-25 | 陕西省石油化工研究设计院 | Resource utilization method of water-based fracturing flowback fluid |
| CN112483026A (en) * | 2020-11-06 | 2021-03-12 | 核工业北京化工冶金研究院 | Mechanical and chemical combined well flushing method for ground-leaching U-shaped horizontal well |
| CN113563862A (en) * | 2021-08-16 | 2021-10-29 | 三桶油环保科技(宜兴)有限公司 | Method for preparing fracturing fluid by using fracturing flowback fluid |
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| CN109852365A (en) * | 2018-12-17 | 2019-06-07 | 中国石油天然气股份有限公司 | Prepare method, the guanidine gum fracturing fluid by this method preparation and its application of guanidine gum fracturing fluid |
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| CN109574394B (en) * | 2018-12-21 | 2021-09-28 | 陕西延长油田压裂材料有限公司 | Fracturing flowback fluid treatment method |
| CN111704263A (en) * | 2020-05-19 | 2020-09-25 | 陕西省石油化工研究设计院 | Resource utilization method of water-based fracturing flowback fluid |
| CN112483026A (en) * | 2020-11-06 | 2021-03-12 | 核工业北京化工冶金研究院 | Mechanical and chemical combined well flushing method for ground-leaching U-shaped horizontal well |
| CN113563862A (en) * | 2021-08-16 | 2021-10-29 | 三桶油环保科技(宜兴)有限公司 | Method for preparing fracturing fluid by using fracturing flowback fluid |
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