CN105949505A - High-temperature-resistant and high-salt-resistant heat stabilizer for polymer used for oil flooding, and preparation method and application thereof - Google Patents
High-temperature-resistant and high-salt-resistant heat stabilizer for polymer used for oil flooding, and preparation method and application thereof Download PDFInfo
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- CN105949505A CN105949505A CN201610275241.6A CN201610275241A CN105949505A CN 105949505 A CN105949505 A CN 105949505A CN 201610275241 A CN201610275241 A CN 201610275241A CN 105949505 A CN105949505 A CN 105949505A
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- 229920000642 polymer Polymers 0.000 title claims abstract description 71
- 239000012760 heat stabilizer Substances 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 36
- LHJQIRIGXXHNLA-UHFFFAOYSA-N calcium peroxide Chemical compound [Ca+2].[O-][O-] LHJQIRIGXXHNLA-UHFFFAOYSA-N 0.000 claims abstract description 35
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 150000003839 salts Chemical class 0.000 claims abstract description 19
- 239000004343 Calcium peroxide Substances 0.000 claims abstract description 18
- 235000019402 calcium peroxide Nutrition 0.000 claims abstract description 18
- 235000019270 ammonium chloride Nutrition 0.000 claims abstract description 17
- 239000008367 deionised water Substances 0.000 claims abstract description 17
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 239000000243 solution Substances 0.000 claims description 37
- 238000006073 displacement reaction Methods 0.000 claims description 25
- 238000003756 stirring Methods 0.000 claims description 21
- 239000007864 aqueous solution Substances 0.000 claims description 14
- 229920002401 polyacrylamide Polymers 0.000 claims description 14
- GJCOSYZMQJWQCA-UHFFFAOYSA-N 9H-xanthene Chemical compound C1=CC=C2CC3=CC=CC=C3OC2=C1 GJCOSYZMQJWQCA-UHFFFAOYSA-N 0.000 claims description 7
- 230000002209 hydrophobic effect Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 229920001285 xanthan gum Polymers 0.000 claims description 7
- 230000014759 maintenance of location Effects 0.000 abstract description 9
- 238000004132 cross linking Methods 0.000 description 7
- 239000002994 raw material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 229940123973 Oxygen scavenger Drugs 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229920006037 cross link polymer Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012667 polymer degradation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/24—Homopolymers or copolymers of amides or imides
- C08L33/26—Homopolymers or copolymers of acrylamide or methacrylamide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
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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
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/588—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
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Abstract
The invention discloses a high-temperature-resistant and high-salt-resistant heat stabilizer for a polymer used for oil flooding, and a preparation method and application thereof. The heat stabilizer is composed of the following components in parts by weight: 3 to 5 parts of calcium peroxide, 20 to 30 parts of ammonium chloride, 2 to 3 parts of hydrogen peroxide and 900 to 1000 parts of deionized water. The heat stabilizer is prepared from the above-mentioned components by uniform mixing and used for polymer flooding in an oil field. The heat stabilizer provided by the invention has high viscosity retention rate under the conditions of high temperature and high salt; the use of the heat stabilizer greatly reduces the concentration of the polymer; and the preparation method provided by the invention is simple, has rapid preparation speed and low cost, and can well improve the strength and the stability of the polymer. Thus, the heat stabilizer can be extensively applied in a field test of polymer flooding in high-temperature and high-salt oil reservoir.
Description
Technical field
The present invention relates to a kind of Oilfield Chemicals and preparation method thereof, particularly relate to heat stabilizer of a kind of resisting high temperature, high salt Polymer Used For Oil Displacement and its preparation method and application.
Background technology
After polymeric system conventional in oilfield chemistry drives at present injects stratum, owing to wherein the general viscosity of polymer used is relatively low, molecular weight is relatively low, the most once polymer is affected by temperature degrades, the crosslinking degree of cross linked polymer can reduce, the space net structure concurrently formed is the loosest, causes cross-link intensity and stabilization time to be reduced so that profile control and water plugging effect is affected.In order to improve the stifled polymeric system heat stability that calls, raising cross-linking system cross-linking effect, increase the effective time of water plugging and profile controlling, invented cross-linking polymer system heat stabilizer for this.Patent name " a kind of blocking up calls cross-linking polymer system heat stabilizer and its preparation method and application ", the patent No. " 201310024354.5 ", providing a kind of stifled tune cross-linking polymer system heat stabilizer, this heat stabilizer is mainly made up of according to certain proportioning oxygen scavenger and complexation stabilizer.Which shortcoming and defect there is in the present invention: (1) heat-resistant salt-resistant poor performance；(2) concentration of polymeric system can not be effectively reduced；(3) cost is high, and preparation method energy consumption is high, preparation speed is slow；(4) formaldehyde has strong carcinogenic and tumor promotion, and health is worked the mischief by life-time service.The present invention mainly starts with from polymer degradation mechanisms, the generation of free radical in suppression degradation process, then coordinates oxidation deoxygenation so that this stabilizer has so that polymer more heat-resistant salt-resistant, cost are lower, and preparation is simpler, uses more easily beneficial effect.
Summary of the invention
It is an object of the invention to provide heat stabilizer of a kind of resisting high temperature, high salt Polymer Used For Oil Displacement and its preparation method and application, design for the feature of high temperature and high salt oil deposit Polymer Used For Oil Displacement, test proves that this heat stabilizer compound method is simple, the feature that use cost is relatively low, polymer stability under the conditions of high temperature and high salt oil deposit can be made to be greatly enhanced, the consumption of polymer can be made significantly to be reduced simultaneously.
The invention provides the heat stabilizer of a kind of resisting high temperature, high salt Polymer Used For Oil Displacement, the most described heat stabilizer is composed of the following components: calper calcium peroxide 3-5, ammonium chloride 20-30, hydrogen peroxide 2-3 and deionized water 900-1000.
The heat stabilizer of preferably described resisting high temperature, high salt Polymer Used For Oil Displacement, the most described heat stabilizer is composed of the following components: calper calcium peroxide 4, ammonium chloride 25, hydrogen peroxide 2.5 and deionized water 950.
The preparation method of the heat stabilizer of above-mentioned resisting high temperature, high salt Polymer Used For Oil Displacement, comprises and comprises the steps of:
At (a) 15-20 DEG C, calper calcium peroxide is added in deionized water, stirs under 50-100 rev/min, prepare water solution A；
Weigh ammonium chloride at (b) 15-20 DEG C and add solution A, stir under 100-150 rev/min, obtain solution B；
In solution B, add hydrogen peroxide at (c) 15-20 DEG C, stir 20-30 minute under mixing speed 300-500 rev/min, obtain product.
Above-mentioned heat stabilizer is in the field polymers displacement of reservoir oil；Described polymer includes polyacrylamide, hydrophobic association polyacrylamide and Xanthan gun.
The application process of described heat stabilizer, it is characterised in that: in the aqueous solutions of polymers prepared, it is initially charged heat stabilizer mix homogeneously uses.
The application of described heat stabilizer, described aqueous solutions of polymers concentration is 1000-3000mg/L, and heat stabilizer concentration is 50-100mg/L.
The most described heat stabilizer concentration is 80mg/L.
Present invention have the advantage that
The analysis of causes of existing Polymer Used For Oil Displacement aqueous stability difference: 1. containing trace ferrous iron in polymer solution preparation water so that depolymerization free radical is more active, accelerates depolymerization；2. the return water after solution preparation use water generally processes, the bacteria impurities contained is more, and experiment proof can reduce the stability of cross-linking polymer system.And the calper calcium peroxide of heat stabilizer of the present invention can make ferrous iron Quick Oxidation, hydrogen peroxide quick sterilization, so that polymer solution stability is preferably improved.
When the field polymers displacement of reservoir oil, according to design, the polymer prepared and heat stabilizer solution are pumped into stratum, the effect well improving recovery ratio can be played.Effective effect after interpolation heat stabilizer:
(1) polymer is under the conditions of temperature 90 DEG C and salinity 100000mg/L, after placing 6 months before adding stabilizer, viscosity retention ratio is 43%, after adding the heat stabilizer in Patent No. ZL201310024354.5, viscosity retention ratio has brought up to 62%, and after adding the heat stabilizer of the present invention, viscosity retention ratio brings up to more than 95%；
(2) at certain high temperature and high salt oil field block by the injection of polymer displacement of reservoir oil, add the polymer concentration after the heat stabilizer of the present invention and be reduced to 1320mg/L by 4200mg/L, be greatly saved the cost of polymer displacement of reservoir oil；
(3) compared with other stabilizer, having concentration low, preparation method energy consumption is low, prepare fireballing feature.
Detailed description of the invention
Embodiment 1
Precise raw material (kilogram): calper calcium peroxide 4, ammonium chloride 25, hydrogen peroxide 2.5 and deionized water 950.
Preparation method:
At (a) 15 DEG C, calper calcium peroxide is added in deionized water, stirs under 50 revs/min, prepare water solution A；
Weigh ammonium chloride at (b) 16 DEG C and add solution A, stir under 120 revs/min, obtain solution B；
In solution B, add hydrogen peroxide at (c) 18 DEG C, stir 25 minutes under mixing speed 420 revs/min, obtain product.
Embodiment 2
Precise raw material (kilogram): calper calcium peroxide 3, ammonium chloride 20, hydrogen peroxide 2 and deionized water 920.
Preparation method:
At (a) 16 DEG C, calper calcium peroxide is added in deionized water, stirs under 100 revs/min, prepare water solution A；
Weigh ammonium chloride at (b) 15 DEG C and add solution A, stir under 100 revs/min, obtain solution B；
In solution B, add hydrogen peroxide at (c) 16 DEG C, stir 20 minutes under mixing speed 300 revs/min, obtain product.
Embodiment 3
Precise raw material (kilogram): calper calcium peroxide 5, ammonium chloride 23, hydrogen peroxide 2.3 and deionized water 900.
Preparation method:
At (a) 20 DEG C, calper calcium peroxide is added in deionized water, stirs under 60 revs/min, prepare water solution A；
Weigh ammonium chloride at (b) 20 DEG C and add solution A, stir under 110 revs/min, obtain solution B；
In solution B, add hydrogen peroxide at (c) 15 DEG C, stir 23 minutes under mixing speed 350 revs/min, obtain product.
Embodiment 4
Precise raw material (kilogram): calper calcium peroxide 3.2, ammonium chloride 27, hydrogen peroxide 3 and deionized water 1000.
Preparation method:
At (a) 17 DEG C, calper calcium peroxide is added in deionized water, stirs under 70 revs/min, prepare water solution A；
Weigh ammonium chloride at (b) 19 DEG C and add solution A, stir under 150 revs/min, obtain solution B；
In solution B, add hydrogen peroxide at (c) 17 DEG C, stir 20-30 minute under mixing speed 460 revs/min, obtain product.
Embodiment 5
Precise raw material (kilogram): calper calcium peroxide 4.6, ammonium chloride 30, hydrogen peroxide 2.8 and deionized water 990.
Preparation method:
At (a) 18 DEG C, calper calcium peroxide is added in deionized water, stirs under 80 revs/min, prepare water solution A；
Weigh ammonium chloride at (b) 18 DEG C and add solution A, stir under 130 revs/min, obtain solution B；
In solution B, add hydrogen peroxide at (c) 20 DEG C, stir 30 minutes under mixing speed 500 revs/min, obtain product.
Embodiment 6
In one of embodiment 1-5 in the present invention, heat stabilizer is in the field polymers displacement of reservoir oil；Described polymer includes polyacrylamide, hydrophobic association polyacrylamide and Xanthan gun.
In the aqueous solutions of polymers prepared, it is initially charged heat stabilizer mix homogeneously use；Described aqueous solutions of polymers concentration is 2000mg/L, and heat stabilizer concentration is 72mg/L；Adding the polymer solution after described heat stabilizer under the conditions of temperature 90 DEG C and salinity 100000mg/L, the viscosity retention ratio after 6 months is 97.2%.
Embodiment 7
In one of embodiment 1-5 in the present invention, heat stabilizer is in the field polymers displacement of reservoir oil；Described polymer includes polyacrylamide, hydrophobic association polyacrylamide and Xanthan gun.
In the aqueous solutions of polymers prepared, it is initially charged heat stabilizer mix homogeneously use；Described aqueous solutions of polymers concentration is 1000mg/L, and heat stabilizer concentration is 50mg/L, adds the polymer solution after described heat stabilizer under the conditions of temperature 90 DEG C and salinity 100000mg/L, and the viscosity retention ratio after 6 months is 96.7%.
Embodiment 8
In one of embodiment 1-5 in the present invention, heat stabilizer is in the field polymers displacement of reservoir oil；Described polymer includes polyacrylamide, hydrophobic association polyacrylamide and Xanthan gun.
In the aqueous solutions of polymers prepared, it is initially charged heat stabilizer mix homogeneously use；Described aqueous solutions of polymers concentration is 3000mg/L, and heat stabilizer concentration is 100mg/L, adds the polymer solution after described heat stabilizer under the conditions of temperature 90 DEG C and salinity 100000mg/L, and the viscosity retention ratio after 6 months is 96.0%.
Embodiment 9
In one of embodiment 1-5 in the present invention, heat stabilizer is in the field polymers displacement of reservoir oil；Described polymer includes polyacrylamide, hydrophobic association polyacrylamide and Xanthan gun.
In the aqueous solutions of polymers prepared, it is initially charged heat stabilizer mix homogeneously use；Described aqueous solutions of polymers concentration is 1500mg/L, and heat stabilizer concentration is 62mg/L, adds the polymer solution after described heat stabilizer under the conditions of temperature 90 DEG C and salinity 100000mg/L, and the viscosity retention ratio after 6 months is 97.5%.Embodiment 10
In one of embodiment 1-5 in the present invention, heat stabilizer is in the field polymers displacement of reservoir oil；Described polymer includes polyacrylamide, hydrophobic association polyacrylamide and Xanthan gun.
In the aqueous solutions of polymers prepared, it is initially charged heat stabilizer mix homogeneously use；Described aqueous solutions of polymers concentration is 2500mg/L, and heat stabilizer concentration is 80mg/L, adds the polymer solution after described heat stabilizer under the conditions of temperature 90 DEG C and salinity 100000mg/L, and the viscosity retention ratio after 6 months is 98.3%.
Claims (6)
1. a heat stabilizer for resisting high temperature, high salt Polymer Used For Oil Displacement, the most described heat stabilizer is composed of the following components: calper calcium peroxide 3-5, ammonium chloride 20-30, hydrogen peroxide 2-3 and deionized water 900-1000；
Wherein, the preparation method of the heat stabilizer of described resisting high temperature, high salt Polymer Used For Oil Displacement, comprise the steps of:
At (a) 15-20 DEG C, calper calcium peroxide is added in deionized water, stirs under 50-100 rev/min, prepare water solution A；
Weigh ammonium chloride at (b) 15-20 DEG C and add solution A, stir under 100-150 rev/min, obtain solution B；
In solution B, add hydrogen peroxide at (c) 15-20 DEG C, stir 20-30 minute under mixing speed 300-500 rev/min, obtain product.
The heat stabilizer of resisting high temperature, high salt Polymer Used For Oil Displacement the most according to claim 1, heat stabilizer described by weight is composed of the following components: calper calcium peroxide 4, ammonium chloride 25, hydrogen peroxide 2.5 and deionized water 950.
The application of the heat stabilizer of resisting high temperature, high salt Polymer Used For Oil Displacement the most according to claim 1 and 2, described heat stabilizer is in the field polymers displacement of reservoir oil；Described polymer includes polyacrylamide, hydrophobic association polyacrylamide and Xanthan gun.
The application of the heat stabilizer of resisting high temperature, high salt Polymer Used For Oil Displacement the most according to claim 3, it is characterised in that be initially charged heat stabilizer mix homogeneously in the aqueous solutions of polymers prepared and use.
The application of the heat stabilizer of resisting high temperature, high salt Polymer Used For Oil Displacement the most according to claim 4, it is characterised in that described aqueous solutions of polymers concentration is 1000-3000mg/L, heat stabilizer concentration is 50-100mg/L.
The application of the heat stabilizer of resisting high temperature, high salt Polymer Used For Oil Displacement the most according to claim 5, it is characterised in that described heat stabilizer concentration is 80mg/L.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108865099A (en) * | 2018-06-08 | 2018-11-23 | 烟台智本知识产权运营管理有限公司 | A kind of oil field heat stabilizer and preparation method thereof |
| CN109207136A (en) * | 2018-10-23 | 2019-01-15 | 天津大港油田滨港集团博弘石油化工有限公司 | High salinity reservoirs displacement of reservoir oil compound surfactant composition |
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| CN103113702A (en) * | 2013-01-23 | 2013-05-22 | 中国石油化工股份有限公司 | Cross-linked polymer system heat stabilizer for water shutoff and profile control, and preparation method and application thereof |
| CN105086967A (en) * | 2015-05-22 | 2015-11-25 | 中国石油天然气股份有限公司 | Channeling preventing and plugging agent and construction method for controlling plugging and sealing channeling by utilizing channeling preventing and plugging agent |
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2016
- 2016-04-29 CN CN201610275241.6A patent/CN105949505B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1557088A1 (en) * | 2004-01-20 | 2005-07-27 | A-Dec, Inc. | Sustained water treatment in dental equipment |
| CN102766863A (en) * | 2012-07-13 | 2012-11-07 | 东莞市东辉贸易有限公司 | Rusting agent, preparation method thereof and rusting method |
| CN103113702A (en) * | 2013-01-23 | 2013-05-22 | 中国石油化工股份有限公司 | Cross-linked polymer system heat stabilizer for water shutoff and profile control, and preparation method and application thereof |
| CN105086967A (en) * | 2015-05-22 | 2015-11-25 | 中国石油天然气股份有限公司 | Channeling preventing and plugging agent and construction method for controlling plugging and sealing channeling by utilizing channeling preventing and plugging agent |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108865099A (en) * | 2018-06-08 | 2018-11-23 | 烟台智本知识产权运营管理有限公司 | A kind of oil field heat stabilizer and preparation method thereof |
| CN109207136A (en) * | 2018-10-23 | 2019-01-15 | 天津大港油田滨港集团博弘石油化工有限公司 | High salinity reservoirs displacement of reservoir oil compound surfactant composition |
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Inventor after: Ding Qian Inventor after: Xu Qiushi Inventor after: Liu Lin Inventor after: Ma Jinglu Inventor after: Yang Huihai Inventor after: Lian Yangyang Inventor after: Xia Wei Inventor after: Sun Yanxia Inventor after: Xu Congcong Inventor after: Zou Xiaodong Inventor after: Zhong Wei Inventor after: Wang Zhenli Inventor before: Liu Qin |
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Denomination of invention: The invention relates to a heat stabilizer of polymer for high temperature and high salt displacement and a preparation method and application thereof Effective date of registration: 20211207 Granted publication date: 20180629 Pledgee: Yantai financing guarantee Group Co.,Ltd. Pledgor: YANTAI ZHIBEN INTELLECTUAL PROPERTY MANAGEMENT Co.,Ltd. Registration number: Y2021980014167 |
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Effective date of registration: 20221215 Address after: 451100 west side of national highway 107, Longhu Town, Xinzheng City, Zhengzhou City, Henan Province Patentee after: HENAN ZHENGJIA GREEN ENERGY Co.,Ltd. Address before: 264000 housing 1, 108 Shengtai Road, Zhaoyuan, Yantai, Shandong Patentee before: YANTAI ZHIBEN INTELLECTUAL PROPERTY MANAGEMENT Co.,Ltd. |
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