CN107794030A - A kind of imitative recyclable clean fracturing fluid of peptide type - Google Patents
A kind of imitative recyclable clean fracturing fluid of peptide type Download PDFInfo
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- CN107794030A CN107794030A CN201711203560.7A CN201711203560A CN107794030A CN 107794030 A CN107794030 A CN 107794030A CN 201711203560 A CN201711203560 A CN 201711203560A CN 107794030 A CN107794030 A CN 107794030A
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- fracturing fluid
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
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- 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
Abstract
The invention belongs to the fracturing fluid technical field of fracturing yield increasing in oilfield development process, and in particular to a kind of imitative recyclable clean fracturing fluid of peptide type, be made up of following component and its mass ratio：Thickening agent：1%~4%；Potassium chloride：0.5%~2%；Conditioning agent：0.1%~1.5%；Surplus is water, overcome existing fracturing fluid oil water interfacial tension big, return discharge opeing and can not effectively utilize in end, the problem of grave danger is caused to environment, while with pressing crack construction cost is reduced, can recycling, and end sewage can be used for transfer drive, with without residue, fragile glue, compatibility be good, low frictional resistance, Low Damage, low interfacial tension the characteristics of, can realize that continuous mixture sand fracturing is constructed using the imitative recyclable clean fracturing fluid of peptide type；After pressing crack construction terminates, return discharge opeing and can be reused for fracturing fluid and match somebody with somebody liquid, end sewage can be used for transfer drive, ensure the green production and sustainable development in oil field.
Description
Technical field
The invention belongs to the fracturing fluid technical field of fracturing yield increasing in oilfield development process, and in particular to a kind of imitative peptide type can
Reclaim clean fracturing fluid.
Background technology
Along with the issuing and implementation of new environmental law, site operation liquid utilizes fracturing fluid system using repeatable more, wherein,
Clean fracturing fluid has low frictional resistance, low residue, Low Damage, low cost and repeatable the characteristics of utilizing, and becomes oil field and transformed
One of key liquids in journey, but also generate simultaneously and largely return discharge opeing, focused on according to evaporation, burning or roping
Operation present situation adds field operation intensity and processing cost, and causes grave danger to surrounding environment.How effectively to utilize
Return the problem of discharge opeing turns into urgent need to resolve in end.
Based on this, developing low-cost, which imitates the recyclable clean fracturing fluid of peptide type, turns into an important directions of fracturing fluid development.
The content of the invention
The purpose of the present invention overcomes that existing fracturing fluid oil water interfacial tension is big, and end is returned discharge opeing and can not effectively utilized, to ring
Cause the problem of grave danger in border.
Therefore, the invention provides a kind of imitative recyclable clean fracturing fluid of peptide type, it is made up of following component and its mass ratio：
Thickening agent：1%~4%；Potassium chloride：0.5%~2%；Conditioning agent：0.1%~1.5%；Surplus is water.
Described thickening agent is made up of following component and its mass ratio：Erucyl amide diemethylamine hydroxypropyl sulfobetaines
Alkali or oleamide CAB：33%~52%；Coconut oil alkanolamide or fatty alcohol list amide：8%~28%；Hydrotropy
Agent：0.5%~10%；Surplus is water.
Described cosolvent is mixed by methanol and ethanol, and the mass ratio of methanol and ethanol is 1：0.3~1：1.
Described conditioning agent is mixed by formic acid and paratoluenesulfonic acid sodium salt, and the mass ratio of formic acid and paratoluenesulfonic acid sodium salt is
1：1~1：5.
Beneficial effects of the present invention：This imitative recyclable clean fracturing fluid of peptide type provided by the invention, applied reducing pressure break
While work cost, can recycling, and end sewage can be used for transfer drive, have without residue, fragile glue, compatibility are good,
The characteristics of low frictional resistance, Low Damage, low interfacial tension, it can realize that continuous mixture adds sand pressure using the imitative recyclable clean fracturing fluid of peptide type
Split construction；After pressing crack construction terminates, return discharge opeing and can be reused for fracturing fluid and match somebody with somebody liquid, end sewage can be used for transfer drive, ensure oil field
Green production and sustainable development.
Brief description of the drawings
The present invention is described in further details below with reference to accompanying drawing.
Fig. 1 is that the imitative peptide type that clear water is prepared cleans recyclable fracturing fluid rheological curve.
Fig. 2 is that fracturing outlet liquid prepares the recyclable fracturing fluid rheological curve of imitative peptide type cleaning again.
Embodiment
Embodiment 1：
A kind of imitative recyclable clean fracturing fluid of peptide type, is made up of following component and its mass ratio：Thickening agent：1%~4%；Potassium chloride：
0.5%~2%；Conditioning agent：0.1%~1.5%；Surplus is water.
Described thickening agent is made up of following component and its mass ratio：Erucyl amide diemethylamine hydroxypropyl sulfobetaines
Alkali or oleamide CAB：33%~52%；Coconut oil alkanolamide or fatty alcohol list amide：8%~28%；Hydrotropy
Agent：0.5%~10%；Surplus is water.
Described cosolvent is mixed by methanol and ethanol, and the mass ratio of methanol and ethanol is 1：0.3~1：1.
Described conditioning agent is mixed by formic acid and paratoluenesulfonic acid sodium salt, and the mass ratio of formic acid and paratoluenesulfonic acid sodium salt is
1：1~1：5.
The preparation method of the imitative recyclable clean fracturing fluid of peptide type is：
First 0.5%~10% cosolvent is dissolved in the water after stirring, is slow added into 33%~52% erucyl amide propyl group two
Methylamine hydroxypropyl sulfobetaines or the dissolving of oleamide CAB, stir；Add 8%~28% coconut oil alkanol
Acid amides or fatty alcohol list amide, the recyclable clean fracturing fluid thickening agent of imitative peptide type is formed after stirring 30min；By 0.5%~2%
Potassium chloride is added to the water, and adds 0.1%~1.5% conditioning agent, and stirring 30s can form the imitative recyclable clean fracturing fluid of peptide type.
Beneficial effects of the present invention：This imitative recyclable clean fracturing fluid of peptide type provided by the invention, applied reducing pressure break
While work cost, can recycling, and end sewage can be used for transfer drive, have without residue, fragile glue, compatibility are good,
The characteristics of low frictional resistance, Low Damage, low interfacial tension, it can realize that continuous mixture adds sand pressure using the imitative recyclable clean fracturing fluid of peptide type
Split construction；After pressing crack construction terminates, return discharge opeing and can be reused for fracturing fluid and match somebody with somebody liquid, end sewage can be used for transfer drive, ensure oil field
Green production and sustainable development.
Embodiment 2：
A kind of imitative recyclable clean fracturing fluid of peptide type, is made up of following component and its mass ratio：Thickening agent：1.5%；Potassium chloride：
1%；Conditioning agent：0.7%；Water：96.8%.
Described thickening agent is made up of following component and its mass ratio：39% erucyl amide diemethylamine hydroxypropyl sulfo group
Glycine betaine；15% fatty alcohol list amide；4.8% cosolvent；41.2% water.
Described cosolvent is mixed by methanol and ethanol, and the mass ratio of methanol and ethanol is 1：0.7.
Described conditioning agent is mixed by formic acid and paratoluenesulfonic acid sodium salt, and the mass ratio of formic acid and paratoluenesulfonic acid sodium salt is
1：2.5.
The preparation method of the imitative recyclable clean fracturing fluid of peptide type is：
First 4.8%% cosolvent is dissolved in the water after stirring, is slow added into 39% erucyl amide diemethylamine hydroxypropyl
Sulfobetaines dissolves, and stirs；15% fatty alcohol list amide is added, the imitative peptide type of formation is recyclable after stirring 30min
Clean fracturing fluid thickening agent；1% potassium chloride is added to the water, adds 0.7% conditioning agent, stirring 30s can form imitative peptide type can
Reclaim clean fracturing fluid.
Embodiment 3
A kind of imitative recyclable clean fracturing fluid of peptide type, is made up of following component and its mass ratio：Thickening agent：1%；Potassium chloride：
0.5%；Conditioning agent：0.1%；Water：98.4%.
Described thickening agent is made up of following component and its mass ratio：33% erucyl amide diemethylamine hydroxypropyl sulfo group
Glycine betaine；8% fatty alcohol list amide；0.5% cosolvent；58.5% water.
Described cosolvent is mixed by methanol and ethanol, and the mass ratio of methanol and ethanol is 1：0.3.
Described conditioning agent is mixed by formic acid and paratoluenesulfonic acid sodium salt, and the mass ratio of formic acid and paratoluenesulfonic acid sodium salt is
1：1.
The preparation method of the imitative recyclable clean fracturing fluid of peptide type is：
First 0.5% cosolvent is dissolved in the water after stirring, is slow added into 33% erucyl amide diemethylamine hydroxypropyl
Sulfobetaines dissolves, and stirs；8% fatty alcohol list amide is added, the imitative peptide type of formation is recyclable after stirring 30min
Clean fracturing fluid thickening agent；0.5% potassium chloride is added to the water, adds 0.1% conditioning agent, stirring 30s can form imitative peptide type
Recyclable clean fracturing fluid.
Embodiment 4：
A kind of imitative recyclable clean fracturing fluid of peptide type, is made up of following component and mass ratio：Thickening agent：4%；Potassium chloride：2%；Adjust
Save agent：1.5%；Water：92.5%.
Described thickener is made up of following component and mass ratio：52% oleamide CAB；28% fatty alcohol list
Amide；10% cosolvent；10% water.
Described cosolvent is mixed by methanol and ethanol, and the mass ratio of methanol and ethanol is 1：1.
Described conditioning agent is mixed by formic acid and paratoluenesulfonic acid sodium salt, and the mass ratio of formic acid and paratoluenesulfonic acid sodium salt is
1：5.
The preparation method of the imitative recyclable clean fracturing fluid of peptide type is：
First 10% cosolvent is dissolved in the water after stirring, is slow added into the dissolving of 52% oleamide CAB, stirs
Mix uniformly；28% fatty alcohol list amide is added, the recyclable clean fracturing fluid thickening agent of imitative peptide type is formed after stirring 30min；
2% potassium chloride is added to the water, adds 1.5% conditioning agent, stirring 30s can form the imitative recyclable clean fracturing fluid of peptide type.
Embodiment 5：
A kind of imitative recyclable clean fracturing fluid of peptide type, is made up of following component and mass ratio：Thickening agent：1%；Potassium chloride：0.5%；
Conditioning agent：0.1%；Water：98.4%.
Described thickener is made up of following component and mass ratio：33% oleamide CAB；8% fatty alcohol list second
Sour acid amides；0.5% cosolvent；58.5% water.
Described cosolvent is mixed by methanol and ethanol, and the mass ratio of methanol and ethanol is 1：0.3.
Described conditioning agent is mixed by formic acid and paratoluenesulfonic acid sodium salt, and the mass ratio of formic acid and paratoluenesulfonic acid sodium salt is
1：1.
The preparation method of the imitative recyclable clean fracturing fluid of peptide type is：
First 0.5% cosolvent is dissolved in the water after stirring, is slow added into the dissolving of 33% oleamide CAB, stirs
Mix uniformly；8% fatty alcohol list amide is added, the recyclable clean fracturing fluid thickening agent of imitative peptide type is formed after stirring 30min；
0.5% potassium chloride is added to the water, adds 0.1% conditioning agent, stirring 30s can form the imitative recyclable clean fracturing fluid of peptide type.
Embodiment 6：
A kind of imitative recyclable clean fracturing fluid of peptide type, is made up of following component and mass ratio：Thickening agent：1%；Potassium chloride：0.5%；
Conditioning agent：0.1%；Water：98.4%.
Described thickener is made up of following component and mass ratio：33% oleamide CAB；8% coconut oil alkanol
Acid amides；0.5% cosolvent；58.5% water.
Described cosolvent is mixed by methanol and ethanol, and the mass ratio of methanol and ethanol is 1：0.3.
Described conditioning agent is mixed by formic acid and paratoluenesulfonic acid sodium salt, and the mass ratio of formic acid and paratoluenesulfonic acid sodium salt is
1：1.
The preparation method of the imitative recyclable clean fracturing fluid of peptide type is：
First 0.5% cosolvent is dissolved in the water after stirring, is slow added into the dissolving of 33% oleamide CAB, stirs
Mix uniformly；8% coconut oil alkanolamide is added, the recyclable clean fracturing fluid thickening agent of imitative peptide type is formed after stirring 30min；Will
0.5% potassium chloride is added to the water, and adds 0.1% conditioning agent, and stirring 30s can form the imitative recyclable clean fracturing fluid of peptide type.
Embodiment 7：
A kind of imitative recyclable clean fracturing fluid of peptide type, is made up of following component and mass ratio：Thickening agent：1%；Potassium chloride：0.5%；
Conditioning agent：0.1%；Water：98.4%.
Described thickener is made up of following component and mass ratio：33% erucyl amide diemethylamine hydroxypropyl sulfo group sweet tea
Dish alkali；8% coconut oil alkanolamide；0.5% cosolvent；58.5% water.
Described cosolvent is mixed by methanol and ethanol, and the mass ratio of methanol and ethanol is 1：0.3.
Described conditioning agent is mixed by formic acid and paratoluenesulfonic acid sodium salt, and the mass ratio of formic acid and paratoluenesulfonic acid sodium salt is
1：1.
The preparation method of the imitative recyclable clean fracturing fluid of peptide type is：
First 0.5% cosolvent is dissolved in the water after stirring, is slow added into 33% erucyl amide diemethylamine hydroxypropyl
Sulfobetaines dissolves, and stirs；8% coconut oil alkanolamide is added, the imitative peptide type of formation is recyclable clear after stirring 30min
Clean fracturing fluid gelatinizer；0.5% potassium chloride is added to the water, adds 0.1% conditioning agent, stirring 30s can form imitative peptide type can
Reclaim clean fracturing fluid.
Embodiment 8：
A kind of imitative recyclable clean fracturing fluid of peptide type, is made up of following component and mass ratio：Thickening agent：4%；Potassium chloride：2%；Adjust
Save agent：1.5%；Water：92.5%.
Described thickener is made up of following component and mass ratio：52% oleamide CAB；28% coconut oil alkane
Alkylolamides；10% cosolvent；10% water.
Described cosolvent is mixed by methanol and ethanol, and the mass ratio of methanol and ethanol is 1：1.
Described conditioning agent is mixed by formic acid and paratoluenesulfonic acid sodium salt, and the mass ratio of formic acid and paratoluenesulfonic acid sodium salt is
1：5.
The preparation method of the imitative recyclable clean fracturing fluid of peptide type is：
First 10% cosolvent is dissolved in the water after stirring, is slow added into the dissolving of 52% oleamide CAB, stirs
Mix uniformly；28% coconut oil alkanolamide is added, the recyclable clean fracturing fluid thickening agent of imitative peptide type is formed after stirring 30min；Will
4% potassium chloride is added to the water, and adds 1.5% conditioning agent, and stirring 30s can form the imitative recyclable clean fracturing fluid of peptide type.
Embodiment 9：
A kind of imitative recyclable clean fracturing fluid of peptide type, is made up of following component and mass ratio：Thickening agent：4%；Potassium chloride：2%；Adjust
Save agent：1.5%；Water：92.5%.
Described thickener is made up of following component and mass ratio：52% erucyl amide diemethylamine hydroxypropyl sulfo group sweet tea
Dish alkali；28% coconut oil alkanolamide；10% cosolvent；10% water.
Described cosolvent is mixed by methanol and ethanol, and the mass ratio of methanol and ethanol is 1：1.
Described conditioning agent is mixed by formic acid and paratoluenesulfonic acid sodium salt, and the mass ratio of formic acid and paratoluenesulfonic acid sodium salt is
1：5.
The preparation method of the imitative recyclable clean fracturing fluid of peptide type is：
First 10% cosolvent is dissolved in the water after stirring, is slow added into 52% erucyl amide diemethylamine hydroxypropyl sulphur
Base glycine betaine dissolves, and stirs；28% coconut oil alkanolamide is added, the recyclable cleaning of imitative peptide type is formed after stirring 30min
Fracturing fluid gelatinizer；2% potassium chloride is added to the water, adds 1.5% conditioning agent, it is recyclable that stirring 30s can form imitative peptide type
Clean fracturing fluid.
Embodiment 10：
A kind of imitative recyclable clean fracturing fluid of peptide type, is made up of following component and mass ratio：Thickening agent：4%；Potassium chloride：2%；Adjust
Save agent：1.5%；Water：92.5%.
Described thickener is made up of following component and mass ratio：52% erucyl amide diemethylamine hydroxypropyl sulfo group sweet tea
Dish alkali；28% fatty alcohol list amide；10% cosolvent；10% water.
Described cosolvent is mixed by methanol and ethanol, and the mass ratio of methanol and ethanol is 1：1.
Described conditioning agent is mixed by formic acid and paratoluenesulfonic acid sodium salt, and the mass ratio of formic acid and paratoluenesulfonic acid sodium salt is
1：5.
The preparation method of the imitative recyclable clean fracturing fluid of peptide type is：
First 10% cosolvent is dissolved in the water after stirring, is slow added into 52% erucyl amide diemethylamine hydroxypropyl sulphur
Base glycine betaine, stirs；28% coconut oil alkanolamide is added, the recyclable clean fracturing of imitative peptide type is formed after stirring 30min
Liquid thickening agent；2% potassium chloride is added to the water, adds 1.5% conditioning agent, stirring 30s can form the imitative recyclable cleaning of peptide type
Fracturing fluid.
Embodiment 11：
A kind of imitative recyclable clean fracturing fluid of peptide type, is made up of following component and mass ratio：Thickening agent：1.5%；Potassium chloride：1%；
Conditioning agent：0.7%；Water：96.8%.
Described thickener is made up of following component and mass ratio：39% erucyl amide diemethylamine hydroxypropyl sulfo group sweet tea
Dish alkali；15% coconut oil alkanolamide；4.8% cosolvent；41.2% water.
Described cosolvent is mixed by methanol and ethanol, and the mass ratio of methanol and ethanol is 1：0.7.
Described conditioning agent is mixed by formic acid and paratoluenesulfonic acid sodium salt, and the mass ratio of formic acid and paratoluenesulfonic acid sodium salt is
1：2.5.
The preparation method of the imitative recyclable clean fracturing fluid of peptide type is：
First 4.8% cosolvent is dissolved in the water after stirring, is slow added into 39% erucyl amide diemethylamine hydroxypropyl
Sulfobetaines dissolves, and stirs；15% coconut oil alkanolamide is added, the imitative peptide type of formation is recyclable clear after stirring 30min
Clean fracturing fluid gelatinizer；1% potassium chloride is added to the water, adds 0.7% conditioning agent, stirring 30s, which can form imitative peptide type, to return
Receive clean fracturing fluid.
Embodiment 12：
A kind of imitative recyclable clean fracturing fluid of peptide type, is made up of following component and mass ratio：Thickening agent：1.5%；Potassium chloride：1%；
Conditioning agent：0.7%；Water：96.8%.
Described thickener is made up of following component and mass ratio：39% oleamide CAB；15% coconut oil alkane
Alkylolamides；4.8% cosolvent；41.2% water.
Described cosolvent is mixed by methanol and ethanol, and the mass ratio of methanol and ethanol is 1：0.7.
Described conditioning agent is mixed by formic acid and paratoluenesulfonic acid sodium salt, and the mass ratio of formic acid and paratoluenesulfonic acid sodium salt is
1：2.5.
The preparation method of the imitative recyclable clean fracturing fluid of peptide type is：
First 4.8% cosolvent is dissolved in the water after stirring, is slow added into the dissolving of 39% oleamide CAB, stirs
Mix uniformly；15% coconut oil alkanolamide is added, the recyclable clean fracturing fluid thickening agent of imitative peptide type is formed after stirring 30min；Will
1% potassium chloride is added to the water, and adds 0.7% conditioning agent, and stirring 30s can form the imitative recyclable clean fracturing fluid of peptide type.
Embodiment 13：
A kind of imitative recyclable clean fracturing fluid of peptide type, is made up of following component and mass ratio：Thickening agent：1.5%；Potassium chloride：1%；
Conditioning agent：0.7%；Water：96.8%.
Described thickener is made up of following component and mass ratio：39% oleamide CAB；15% fatty alcohol list
Amide；4.8% cosolvent；41.2% water.
Described cosolvent is mixed by methanol and ethanol, and the mass ratio of methanol and ethanol is 1：0.7.
Described conditioning agent is mixed by formic acid and paratoluenesulfonic acid sodium salt, and the mass ratio of formic acid and paratoluenesulfonic acid sodium salt is
1：2.5.
The preparation method of the imitative recyclable clean fracturing fluid of peptide type is：
First 4.8% cosolvent is dissolved in the water after stirring, is slow added into the dissolving of 39% oleamide CAB, stirs
Mix uniformly；15% fatty alcohol list amide is added, the recyclable clean fracturing fluid thickening agent of imitative peptide type is formed after stirring 30min；
1% potassium chloride is added to the water, adds 0.7% conditioning agent, stirring 30s can form the imitative recyclable clean fracturing fluid of peptide type.
Scene is mainly surfactant fracturing fluid with clean fracturing fluid, detects scene clean fracturing fluid and this hair respectively
The increment of clean fracturing breaking glue solution interfacial tension under reservoir conditions, recovery ratio and recovery ratio, is examined in bright embodiment 2-13
The interfacial tension after fracturing liquid rubber-breaking and recovery ratio are examined, as shown in table 1.
Table 1 often uses clean fracturing fluid and embodiment 2-13 clean fracturing breaking glue solutions
Interfacial tension, recovery ratio and recovery ratio increment under reservoir conditions
It will be seen from figure 1 that fracturing fluid continuous shear stress 60min at 87 DEG C, viscosity 30mPas, meets well in 3000m
Construction requirement.
Figure it is seen that using fracturing outlet liquid preparing fracturing fluid, the continuous shear stress 60min at 68 DEG C, viscosity 26
MPas, meet the construction requirement of well in 2500m.
It is exemplified as above be only to the present invention for example, do not form the limitation to protection scope of the present invention, it is all
It is to be belonged to the same or analogous design of the present invention within protection scope of the present invention.
Claims (4)
- A kind of 1. imitative recyclable clean fracturing fluid of peptide type, it is characterised in that：It is made up of following component and its mass ratio：Thickening agent：1%~4%；Potassium chloride：0.5%~2%；Conditioning agent：0.1%~1.5%；Surplus is water.
- 2. the recyclable clean fracturing fluid of imitative peptide type as claimed in claim 1, it is characterised in that：Described thickening agent is by such as the following group Divide and its mass ratio forms：Erucyl amide diemethylamine hydroxypropyl sulfobetaines or oleamide CAB：33%~52%；Coconut oil alkanolamide or fatty alcohol list amide：8%~28%；Cosolvent：0.5%~10%；Surplus is water.
- 3. the recyclable clean fracturing fluid of imitative peptide type as claimed in claim 2, it is characterised in that：Described cosolvent by methanol and Ethanol mixes, and the mass ratio of methanol and ethanol is 1：0.3~1：1.
- 4. the recyclable clean fracturing fluid of imitative peptide type as claimed in claim 3, it is characterised in that：Described conditioning agent by formic acid and Paratoluenesulfonic acid sodium salt mixes, and the mass ratio of formic acid and paratoluenesulfonic acid sodium salt is 1：1~1：5.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108707454A (en) * | 2018-06-05 | 2018-10-26 | 中国石油集团川庆钻探工程有限公司 | A kind of thickening agent and its application |
| CN108865100A (en) * | 2018-05-29 | 2018-11-23 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | One kind is reusable to drop the system that blocks water |
| CN109135713A (en) * | 2018-09-05 | 2019-01-04 | 安徽炎胜新材料科技有限公司 | A kind of clean fracturing fluid and preparation method thereof for high salinity recovered water |
| CN109337663A (en) * | 2018-11-19 | 2019-02-15 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Low permeability reservoir continuous mixed displacement of reservoir oil type fracturing fluid and its preparation method and application |
| US20200048990A1 (en) * | 2018-08-13 | 2020-02-13 | Saudi Arabian Oil Company | Systems and Methods for Treating Fluids in Oilfield Facilities |
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