CN110205109A - A kind of low-viscosity gel water shutoff agent of resisting high temperature, high salt - Google Patents
A kind of low-viscosity gel water shutoff agent of resisting high temperature, high salt Download PDFInfo
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- CN110205109A CN110205109A CN201910620042.8A CN201910620042A CN110205109A CN 110205109 A CN110205109 A CN 110205109A CN 201910620042 A CN201910620042 A CN 201910620042A CN 110205109 A CN110205109 A CN 110205109A
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- high temperature
- water shutoff
- shutoff agent
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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
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/5083—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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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
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/5086—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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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
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/512—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
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- Materials Engineering (AREA)
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- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention provides a kind of low-viscosity gel water shutoff agent of resisting high temperature, high salt, the water shutoff agent is by including that the raw material of following parts by weight is made: 1-5 parts of thixotropy component, 0.5-1.5 parts of cross-linking component, 10-20 parts of mineral material, 0.5-1.5 parts of initiator, 80-90 parts of water.The low viscosity characteristics (5-20mpa.S) of the low-viscosity gel water shutoff agent of resisting high temperature, high salt of the present invention, meet the requirement in deep, are demonstrated by the plugging function of preferable selectivity.
Description
Technical field
The invention belongs to oil fields, more particularly, to a kind of low-viscosity gel water shutoff agent of resisting high temperature, high salt.
Background technique
Desk research work for High Temperature Plugging Agent it has been reported that Canadian Navratil et al. with Acacia extract and
Sulfonation tannin extract and formaldehyde and phenol etc. have been mixed to prepare the gel that can be applied in high-temperature stratum water blockoff.Liu Chengjie et al. is utilized
The blocking agent that can be used for high temperature has been made in rubber tannin extract of sighing.But successful water plugging and profile controlling field test has not been reported.French petroleum is ground
Study carefully institute and developed a kind of micro gel with high injectability, micro gel is made of polymer and lactic acid mistake, solid
Determine under shear rate, polymer and second gelatinizing agent form the micro gel dispersed one by one.Control the size and suction of micro gel
Attached characteristic, but still in the desk research stage.Zhu Huaijiang etc. is introduced in the tannin molecule of larch bark by sulfonating reaction
Sulfonic group, so that modified mimosa extract has better water dispersible and salt tolerance, the water shutoff agent solution viscosity being made into is lower.?
Gelation time at 100-140 DEG C applies one clear water isolation slug of man-hour requirement, not easy to control in this way.The technology also stops at present
Conceptual phase indoors, practical filed application also need a process.In addition the cost of mimosa extract is relatively high, this is also one critically important
Restraining factors.Existing techniques of chemical water plugging is used to the thermal stability of chemical agent occur when 90 DEG C of > of oil reservoir, general
Long-term high pressure cannot be reached and wash away required intensity and water blockoff occur by not having selective blocking outlet capacity and gel strength when injection
Incessantly the problems such as.Its reason may have: oil well aquifer pressure is higher than formation pressure, and blocking agent easily enters oil reservoir when being directly injected into, and makes
At stifled oily not water blockoff；Polymerization species blocking agent cannot form stable gel after temperature is higher than 120 DEG C；Particulate species blocking agent is easily anti-
Row；Reverse phase gel-like blocking agent is difficult to large dosage of injection, after solidifying in oil-sand, because oil-sand sea surface oil slick there are reverse phase gel with
There are still gaps between oil-sand, cannot form stable water blockoff.The oilwell water shutoff of high temperature and high salt oil deposit will encounter following problem, 1. blocking agent
It is required steady in a long-term under high temperature and high salt environment；2. being discharged stressor layer when oilwell water shutoff is greater than oil-producing stressor layer, injection is caused
Blocking agent largely enters oil reservoir, causes stifled oil not water blockoff or the invalid phenomenon of water blockoff；3. being blocked up even if forming water blockoff in oil well water layer
Water layer is generally the lower material of intensity, can not resist washing away for a long time for high pressure formation water, be destroyed water shutoff material, and counter spits
Out.
Summary of the invention
In view of this, the present invention is directed to propose a kind of low-viscosity gel water shutoff agent of resisting high temperature, high salt, increases substantially stifled
The success rate of water.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of low-viscosity gel water shutoff agent of resisting high temperature, high salt, the water shutoff agent is by including that the raw material of following parts by weight is made:
The first aggressiveness of aggressiveness, acrylic acid and acrylamide copolymer at the beginning of further, the thixotropy group is divided into acrylamide,
At least one of the first aggressiveness of polyester, the first aggressiveness of polyethylene or the first polymers of Lauxite.
Further, the cross-linking component is two azos (N, N '-dimethyleneisobutyramide) dihydrochloride, two azos
(2- amidine propane) dihydrochloride, two azos [2- methyl-N- (2- ethylene glycol) propionamide], azo-compound or azo polymerization
At least one of object.
Further, the mineral material is by including that the component of following parts by weight is made: 30 parts of sulphur ferrite, aluminium sulfate
30 parts of mineral powder, 40 parts of calcium soil powder.
Further, the sulphur ferrite, sulphoaluminate phase powder, calcium soil powder partial size be all larger than equal to 800 mesh.
Further, the mineral material is made of the method including the following steps: by the sulphur ferrite, sulphur aluminic acid
Salt mineral powder, calcium soil powder uniformly mix, after then grinding to obtain the final product.
Further, the initiator is at least one of persulfate, peroxide or tert-butyl hydroperoxide.
Preferably, the initiator is at least one of potassium peroxydisulfate persulfuric acid, ammonium persulfate or sodium peroxide.
The preparation method of the low-viscosity gel water shutoff agent of the resisting high temperature, high salt, includes the following steps:
(1) thixotropy component is uniformly mixed with mineral material, obtains the first component after then grinding；
(2) cross-linking component is uniformly mixed to obtain the second component with initiator；
(3) by the first component, the second component and water after evenly mixing up to the low-viscosity gel of the resisting high temperature, high salt
Water shutoff agent.
Compared with the existing technology, the low-viscosity gel water shutoff agent of resisting high temperature, high salt of the present invention has the advantage that
(1) low viscosity characteristics (5-20mpa.S) of the low-viscosity gel water shutoff agent of resisting high temperature, high salt of the present invention, it is full
The requirement in sufficient deep is demonstrated by the plugging function of preferable selectivity；Water shutoff agent energy high temperature resistant and resistance to high salinity simultaneously have length
Phase thermal stability；There is the water-blocking layer that water shutoff agent is formed high pressure resistant water flooding to wash away required intensity for a long time, and material cost is opposite
It is lower, to reach the moisture content for reducing high temperature and high salt oil deposit oil recovery later period oil well, increases oil production, reduce the mesh of production cost
's.
(2) the low-viscosity gel water shutoff agent of resisting high temperature, high salt of the present invention can form high thixotropic water blockoff in the earth formation
Agent system is able to achieve being completely filled with for fracture hole, avoids the leakage of subsequent water shutoff agent；Low viscosity (5-20mpa.S) when beginning is easily infused
Enter, meet deep plugging adjustment requirement, microscopic checks and hole can be entered, there can be preferable presence in the earth formation.Water shutoff agent exists
Formation temperature effect is lower can to form high-intensitive gelinite, and can be formed has high temperature resistant, the good and halophilic gel of thermal stability,
To obtain stable water blockoff barrier.Applicable temperature range is 30-350 DEG C, by having after resident plastic in porous media
High pressure is held, the success rate of high temperature and high salt oil deposit oilwell water shutoff can be increased substantially.
Specific embodiment
In addition to being defined, technical term used in following embodiment has universal with those skilled in the art of the invention
The identical meanings of understanding.Test reagent used in following embodiment is unless otherwise specified conventional biochemical reagent；It is described
Experimental method is unless otherwise specified conventional method.
Below with reference to embodiment, the present invention will be described in detail.
Embodiment 1
A kind of low-viscosity gel water shutoff agent of resisting high temperature, high salt, the water shutoff agent is by including that the raw material of following parts by weight is made:
Acrylic acid and first 1 part of the aggressiveness of acrylamide copolymer, 0.5 part of two azos [2- methyl-N- (2- ethylene glycol) propionamide], persulfuric acid
0.5 part of potassium, 10 parts of mineral material, 88 parts of water.
The mineral material is by including that the component of following parts by weight is made: 30 parts of sulphur ferrite, sulphoaluminate phase powder
30 parts, 40 parts of calcium soil powder.
The preparation method of the first aggressiveness of the acrylic acid and acrylamide copolymer, include the following steps: 5 parts of acrylic acid,
10 parts of acrylamide, 1 part of potassium peroxydisulfate mixed with 84 parts of water after, 60 DEG C constant temperature 3 hours fluffy gelinite.Described is first
Aggressiveness is provided by engraving great (Beijing) petroleum technology Co., Ltd.
The preparation method of the low-viscosity gel water shutoff agent of the resisting high temperature, high salt, includes the following steps:
(1) thixotropy component is uniformly mixed with mineral material, obtains the first component after being then ground to 800 mesh；
(2) cross-linking component is uniformly mixed to obtain the second component with initiator；
(3) by the first component, the second component and water after evenly mixing up to the low-viscosity gel of the resisting high temperature, high salt
Water shutoff agent.
Laboratory core water blockoff is tested at 80 DEG C, has carried out water blockoff examination by water shutoff agent and to cementing quartz sand cylinder rock core
It tests, is tested by water plugging rate measurement experiment method: 1, preparing water shutoff agent；2, rock core makes: into the sand of different meshes, filling out
Water phase permeability is surveyed after substituting the bad for the good；3, it is placed in 80 DEG C of closed thermostatic containers after injecting water shutoff agent, plastic 48h, surveys water drive infiltration
Rate；4, rock core water plugging rate is calculated according to Darcy's law；5, displacing fluid uses 3%KCL.The blocking of two kinds of different permeability cores
Rate, breakthrough pressure measurement.Experimental data see the table below 1.
The water plugging property evaluation of water shutoff agent in different permeability sand packs at 80 DEG C of table 1.
Measuring the more a height of 2.3-3.3MPa/cm of breakthrough pressure after constant temperature 3d at 80 DEG C, water plugging rate is taller and bigger in 90%,
Can effective water blockoff, the percolation ability of rock core is greatly reduced.
Embodiment 2
A kind of low-viscosity gel water shutoff agent of resisting high temperature, high salt, the water shutoff agent is by including that the raw material of following parts by weight is made:
Acrylic acid and first 1 part of the aggressiveness of acrylamide copolymer, first 4 parts of the aggressiveness of Lauxite, two azos [2- methyl-N- (2- ethylene glycol)
Propionamide] 0.5 part, 0.5 part of potassium peroxydisulfate, 12 parts of mineral material, 82 parts of water.
The mineral material is by including that the component of following parts by weight is made: 30 parts of sulphur ferrite, sulphoaluminate phase powder
30 parts, 40 parts of calcium soil powder.
The preparation method of the first aggressiveness of the acrylic acid and acrylamide copolymer, include the following steps: 5 parts of acrylic acid,
10 parts of acrylamide, 1 part of potassium peroxydisulfate mixed with 84 parts of water after, 60 DEG C constant temperature 3 hours fluffy gelinite.Described is first
Aggressiveness is provided by engraving great (Beijing) petroleum technology Co., Ltd.
Just aggressiveness is 3-5 with phosphoric acid adjustment PH, is warmed to 60 by 70 parts of urea, 30 parts of formaldehyde to the Lauxite
Degree 1 hour, half an hour be warming up to 85 degree of constant temperature half an hour obtain just aggressiveness through filtration drying crush and obtain.
The preparation method of the low-viscosity gel water shutoff agent of the resisting high temperature, high salt, includes the following steps:
(1) thixotropy component is uniformly mixed with mineral material, obtains the first component after being then ground to 800 mesh；
(2) cross-linking component is uniformly mixed to obtain the second component with initiator；
(3) by the first component, the second component and water after evenly mixing up to the low-viscosity gel of the resisting high temperature, high salt
Water shutoff agent.
Water breakthrough carried out water blockoff field test after two mouthfuls of well fracturings of Shengli Oil Field Lu Ming company, carried out in December, 2015
The site operation of water blockoff.Data are shown in Table 2, Liang Koujing and all achieve water-control oil-increasing effect, have reached the effect of water breakthrough channel water blockoff
Fruit improves water injection well effect and extends the exploitation effect of oil well.
Table 2 is at 150 DEG C, water blockoff test result of the gel to cementing quartz sand rock core
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of low-viscosity gel water shutoff agent of resisting high temperature, high salt, it is characterised in that: the water shutoff agent is by including following parts by weight
Raw material is made:
2. the low-viscosity gel water shutoff agent of resisting high temperature, high salt according to claim 1, it is characterised in that: the thixotropy
Group is divided into the acrylamide just first aggressiveness of aggressiveness, acrylic acid and acrylamide copolymer, the first aggressiveness of polyester, the first aggressiveness of polyethylene or urea
At least one of first polymers of urea formaldehyde.
3. the low-viscosity gel water shutoff agent of resisting high temperature, high salt according to claim 1, it is characterised in that: the crosslinking group
It is divided into two azos (N, N '-dimethyleneisobutyramide) dihydrochloride, two azos (2- amidine propane) dihydrochloride, two occasionally
At least one of nitrogen [2- methyl-N- (2- ethylene glycol) propionamide], azo-compound or azobenzene polymer.
4. the low-viscosity gel water shutoff agent of resisting high temperature, high salt according to claim 1, it is characterised in that: the mineral material
Material is by including that the component of following parts by weight is made: 30 parts of sulphur ferrite, 30 parts of sulphoaluminate phase powder, and 40 parts of calcium soil powder.
5. the low-viscosity gel water shutoff agent of resisting high temperature, high salt according to claim 4, it is characterised in that: the sulphur ferrous acid
Salt, sulphoaluminate phase powder, calcium soil powder partial size be all larger than equal to 800 mesh.
6. the low-viscosity gel water shutoff agent of resisting high temperature, high salt according to claim 5, it is characterised in that: the mineral material
Material is made of the method including the following steps: the sulphur ferrite, sulphoaluminate phase powder, calcium soil powder uniformly being mixed, so
After grinding afterwards to obtain the final product.
7. the low-viscosity gel water shutoff agent of resisting high temperature, high salt according to claim 1, it is characterised in that: the initiator
For at least one of persulfate, peroxide or tert-butyl hydroperoxide.
8. the low-viscosity gel water shutoff agent of resisting high temperature, high salt according to claim 7, it is characterised in that: the initiator
For at least one of potassium peroxydisulfate persulfuric acid, ammonium persulfate or sodium peroxide.
9. the preparation method of the low-viscosity gel water shutoff agent of resisting high temperature, high salt of any of claims 1-8, feature
It is: includes the following steps:
(1) thixotropy component is uniformly mixed with mineral material, obtains the first component after then grinding；
(2) cross-linking component is uniformly mixed to obtain the second component with initiator；
(3) by the first component, the second component and water after evenly mixing up to the low-viscosity gel water blockoff of the resisting high temperature, high salt
Agent.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111635748A (en) * | 2020-06-08 | 2020-09-08 | 天津益创能源科技有限公司 | Viscoelastic particle oil displacement agent with water plugging function |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6431280B2 (en) * | 1998-12-21 | 2002-08-13 | Geoffrey Stanley Bayliss | Method for placement of blocking gels or polymers at specific depths of penetration into oil and gas, and water producing formations |
| US20060234871A1 (en) * | 2005-01-24 | 2006-10-19 | Halliburton Energy Services, Inc. | Sealant composition comprising a gel system and a reduced amount of cement for a permeable zone downhole |
| CN104073228A (en) * | 2014-06-20 | 2014-10-01 | 武汉工程大学 | Method for preparing environmental-friendly type gel profile control agent |
| CN104403053A (en) * | 2014-11-14 | 2015-03-11 | 天津大港油田滨港集团博弘石油化工有限公司 | Polymer water-plugging precrosslinked oil displacement profile control agent for oil recovery and preparation method thereof |
| CN104449618A (en) * | 2015-01-06 | 2015-03-25 | 西南石油大学 | Temperature-resisting salt-tolerant high-temperature self-cross-linking onsite polymerization water plugging gel |
| CN104629697A (en) * | 2015-01-19 | 2015-05-20 | 中国石油大学(华东) | Temperature-resistant jelly |
| CN105111343A (en) * | 2015-09-23 | 2015-12-02 | 山东聚鑫化工有限公司 | Preparation method of salt-resistant low molecular weight polyacrylamide |
| CN105885811A (en) * | 2016-05-04 | 2016-08-24 | 长江大学 | High-strength high-thixotropy horizontal well annular chemical packer material and preparation process thereof |
| CN106350049A (en) * | 2016-07-29 | 2017-01-25 | 中国海洋石油总公司 | Method for improving polymer flooding effect, and polymer flooding composition and application thereof |
| CN107652953A (en) * | 2017-09-13 | 2018-02-02 | 中国石油天然气股份有限公司 | High-temperature-resistant high-salt-resistant slug type chemical water plugging agent |
| CN107858141A (en) * | 2017-11-22 | 2018-03-30 | 烟台智本知识产权运营管理有限公司 | A kind of coal-fired waste residue profile control agent and profile control method |
| CN109370552A (en) * | 2018-10-22 | 2019-02-22 | 中国海洋石油集团有限公司 | A method of delaying the uncrosslinked gel solution rate in the plugging agent of oil field |
| CN109868126A (en) * | 2017-12-01 | 2019-06-11 | 中国石油天然气股份有限公司 | Water plugging agent and preparation method and application thereof |
-
2019
- 2019-07-10 CN CN201910620042.8A patent/CN110205109A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6431280B2 (en) * | 1998-12-21 | 2002-08-13 | Geoffrey Stanley Bayliss | Method for placement of blocking gels or polymers at specific depths of penetration into oil and gas, and water producing formations |
| US20060234871A1 (en) * | 2005-01-24 | 2006-10-19 | Halliburton Energy Services, Inc. | Sealant composition comprising a gel system and a reduced amount of cement for a permeable zone downhole |
| CN104073228A (en) * | 2014-06-20 | 2014-10-01 | 武汉工程大学 | Method for preparing environmental-friendly type gel profile control agent |
| CN104403053A (en) * | 2014-11-14 | 2015-03-11 | 天津大港油田滨港集团博弘石油化工有限公司 | Polymer water-plugging precrosslinked oil displacement profile control agent for oil recovery and preparation method thereof |
| CN104449618A (en) * | 2015-01-06 | 2015-03-25 | 西南石油大学 | Temperature-resisting salt-tolerant high-temperature self-cross-linking onsite polymerization water plugging gel |
| CN104629697A (en) * | 2015-01-19 | 2015-05-20 | 中国石油大学(华东) | Temperature-resistant jelly |
| CN105111343A (en) * | 2015-09-23 | 2015-12-02 | 山东聚鑫化工有限公司 | Preparation method of salt-resistant low molecular weight polyacrylamide |
| CN105885811A (en) * | 2016-05-04 | 2016-08-24 | 长江大学 | High-strength high-thixotropy horizontal well annular chemical packer material and preparation process thereof |
| CN106350049A (en) * | 2016-07-29 | 2017-01-25 | 中国海洋石油总公司 | Method for improving polymer flooding effect, and polymer flooding composition and application thereof |
| CN107652953A (en) * | 2017-09-13 | 2018-02-02 | 中国石油天然气股份有限公司 | High-temperature-resistant high-salt-resistant slug type chemical water plugging agent |
| CN107858141A (en) * | 2017-11-22 | 2018-03-30 | 烟台智本知识产权运营管理有限公司 | A kind of coal-fired waste residue profile control agent and profile control method |
| CN109868126A (en) * | 2017-12-01 | 2019-06-11 | 中国石油天然气股份有限公司 | Water plugging agent and preparation method and application thereof |
| CN109370552A (en) * | 2018-10-22 | 2019-02-22 | 中国海洋石油集团有限公司 | A method of delaying the uncrosslinked gel solution rate in the plugging agent of oil field |
Non-Patent Citations (4)
| Title |
|---|
| 何天白: "《功能高分子与新技术》", 31 January 2001 * |
| 水谷久一: "《聚合与解聚合反应》", 30 November 1964, 上海科学技术出版社 * |
| 蒲万芬等: "XN-PP调剖堵水体系的研究及性能评价", 《钻井液与完井液》 * |
| 黄正详: "新型低分子选择性堵水剂性能与应用研究", 《中外能源》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111635748A (en) * | 2020-06-08 | 2020-09-08 | 天津益创能源科技有限公司 | Viscoelastic particle oil displacement agent with water plugging function |
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