CN104087280A - 一种低渗透油藏二氧化碳非混相驱抑窜封堵体系及封堵方法 - Google Patents
一种低渗透油藏二氧化碳非混相驱抑窜封堵体系及封堵方法 Download PDFInfo
- Publication number
- CN104087280A CN104087280A CN201410326290.9A CN201410326290A CN104087280A CN 104087280 A CN104087280 A CN 104087280A CN 201410326290 A CN201410326290 A CN 201410326290A CN 104087280 A CN104087280 A CN 104087280A
- Authority
- CN
- China
- Prior art keywords
- gas
- agent
- massfraction
- carbonic acid
- tensio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 230000005465 channeling Effects 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000000903 blocking effect Effects 0.000 title claims abstract description 13
- 230000035699 permeability Effects 0.000 title abstract description 13
- 239000001569 carbon dioxide Substances 0.000 title abstract description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 title abstract description 5
- 230000005764 inhibitory process Effects 0.000 title abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 30
- 239000002245 particle Substances 0.000 claims abstract description 24
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 19
- 239000011707 mineral Substances 0.000 claims abstract description 19
- 230000008569 process Effects 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 238000010793 Steam injection (oil industry) Methods 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 84
- 235000011089 carbon dioxide Nutrition 0.000 claims description 68
- 239000013543 active substance Substances 0.000 claims description 52
- 238000002347 injection Methods 0.000 claims description 51
- 239000007924 injection Substances 0.000 claims description 51
- 238000002156 mixing Methods 0.000 claims description 34
- 239000003795 chemical substances by application Substances 0.000 claims description 33
- 229940123973 Oxygen scavenger Drugs 0.000 claims description 27
- 239000000126 substance Substances 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 18
- PRPAGESBURMWTI-UHFFFAOYSA-N [C].[F] Chemical group [C].[F] PRPAGESBURMWTI-UHFFFAOYSA-N 0.000 claims description 16
- WYYQVWLEPYFFLP-UHFFFAOYSA-K chromium(3+);triacetate Chemical compound [Cr+3].CC([O-])=O.CC([O-])=O.CC([O-])=O WYYQVWLEPYFFLP-UHFFFAOYSA-K 0.000 claims description 16
- 229920003987 resole Polymers 0.000 claims description 16
- 229910019142 PO4 Inorganic materials 0.000 claims description 15
- 239000010452 phosphate Substances 0.000 claims description 15
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 15
- 239000000243 solution Substances 0.000 claims description 15
- 229920002635 polyurethane Polymers 0.000 claims description 12
- 239000004814 polyurethane Substances 0.000 claims description 12
- 239000012313 reversal agent Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 238000011049 filling Methods 0.000 claims description 10
- 230000002441 reversible effect Effects 0.000 claims description 10
- 229920002401 polyacrylamide Polymers 0.000 claims description 9
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical group [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 9
- 239000000080 wetting agent Substances 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 7
- ZNCPFRVNHGOPAG-UHFFFAOYSA-L sodium oxalate Chemical compound [Na+].[Na+].[O-]C(=O)C([O-])=O ZNCPFRVNHGOPAG-UHFFFAOYSA-L 0.000 claims description 7
- 229940039790 sodium oxalate Drugs 0.000 claims description 7
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 7
- 235000011152 sodium sulphate Nutrition 0.000 claims description 7
- HELHAJAZNSDZJO-OLXYHTOASA-L sodium L-tartrate Chemical group [Na+].[Na+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O HELHAJAZNSDZJO-OLXYHTOASA-L 0.000 claims description 6
- 239000001433 sodium tartrate Substances 0.000 claims description 6
- 229960002167 sodium tartrate Drugs 0.000 claims description 6
- 235000011004 sodium tartrates Nutrition 0.000 claims description 6
- 239000008399 tap water Substances 0.000 claims description 6
- 235000020679 tap water Nutrition 0.000 claims description 6
- 230000003750 conditioning effect Effects 0.000 claims description 5
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 claims description 5
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 claims description 5
- 239000010456 wollastonite Substances 0.000 claims description 5
- 229910052882 wollastonite Inorganic materials 0.000 claims description 5
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 12
- 229920000642 polymer Polymers 0.000 abstract description 6
- 239000004094 surface-active agent Substances 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000012071 phase Substances 0.000 description 21
- 230000008859 change Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000012452 mother liquor Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000001879 gelation Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 208000013201 Stress fracture Diseases 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 150000001768 cations Chemical group 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 210000000867 larynx Anatomy 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000005501 phase interface Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 229960001866 silicon dioxide Drugs 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- C09K8/594—Compositions used in combination with injected gas, e.g. CO2 orcarbonated gas
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Sealing Material Composition (AREA)
- Fireproofing Substances (AREA)
Abstract
Description
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410326290.9A CN104087280B (zh) | 2014-07-10 | 2014-07-10 | 一种低渗透油藏二氧化碳非混相驱抑窜封堵体系及封堵方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410326290.9A CN104087280B (zh) | 2014-07-10 | 2014-07-10 | 一种低渗透油藏二氧化碳非混相驱抑窜封堵体系及封堵方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN104087280A true CN104087280A (zh) | 2014-10-08 |
CN104087280B CN104087280B (zh) | 2016-09-28 |
Family
ID=51635046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410326290.9A Expired - Fee Related CN104087280B (zh) | 2014-07-10 | 2014-07-10 | 一种低渗透油藏二氧化碳非混相驱抑窜封堵体系及封堵方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN104087280B (zh) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104774604A (zh) * | 2014-10-29 | 2015-07-15 | 中国石油化工股份有限公司 | 一种含氟聚氨酯类co2气溶性发泡剂及其制备方法和用途 |
CN104929568A (zh) * | 2015-05-06 | 2015-09-23 | 中国石油化工股份有限公司 | 一种用于气藏控水的施工方法 |
CN106318345A (zh) * | 2016-08-18 | 2017-01-11 | 库尔勒同益工贸有限责任公司 | 一种钻井液用低荧光防塌封堵剂及其制备方法 |
CN106995689A (zh) * | 2017-05-24 | 2017-08-01 | 中国石油大学(北京) | 一种二氧化碳驱油用复合型防气窜剂 |
CN107435532A (zh) * | 2016-05-27 | 2017-12-05 | 中国石油化工股份有限公司 | 一种利用co2响应表面活性剂控制co2驱气窜的方法 |
CN108194072A (zh) * | 2018-01-19 | 2018-06-22 | 中国地质大学(北京) | 基于片状支撑剂和气润湿反转剂的储层压裂方法 |
CN109372478A (zh) * | 2018-12-21 | 2019-02-22 | 中国石油大学胜利学院 | 一种确定非混相气驱油开采方式的实验方法及装置 |
CN110043233A (zh) * | 2019-05-16 | 2019-07-23 | 中国石油化工股份有限公司 | 一种超高压注氮气的安全控制方法及装置 |
CN112063374A (zh) * | 2020-10-13 | 2020-12-11 | 中海油田服务股份有限公司 | 一种封堵剂 |
CN113494263A (zh) * | 2020-04-08 | 2021-10-12 | 中国石油化工股份有限公司 | 致密油藏油井水窜裂缝封堵方法、体积计算方法及装置 |
US11236264B2 (en) | 2020-06-08 | 2022-02-01 | Saudi Arabian Oil Company | Methods and compositions using a combination of zwitterionic surfactants and gemini surfactants as diversion agents |
CN114427375A (zh) * | 2020-09-21 | 2022-05-03 | 中国石油化工股份有限公司 | 一种溶洞油藏密度选择性堵水体系及其制备方法 |
CN114737924A (zh) * | 2022-04-20 | 2022-07-12 | 中国矿业大学(北京) | 一种水平井分段压裂煤体瓦斯抽采模拟装置及使用方法 |
CN114989796A (zh) * | 2021-03-02 | 2022-09-02 | 中国石油天然气股份有限公司 | 一种防气窜体系及其应用 |
US11959017B1 (en) | 2022-10-07 | 2024-04-16 | Saudi Arabian Oil Company | Methods and materials for wellbore fluid diversion using visco-elastic surfactants |
US12071838B2 (en) | 2022-10-07 | 2024-08-27 | Saudi Arabian Oil Company | Viscoelastic surfactants for acid diversion in downhole operations |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101712865A (zh) * | 2009-11-25 | 2010-05-26 | 中国石油天然气股份有限公司 | 一种粘弹性弱凝胶调驱剂 |
CN101775273A (zh) * | 2009-01-09 | 2010-07-14 | 中国石油化工股份有限公司 | 一种抗高温油气井固井用基液及制备方法和应用 |
CN102965088A (zh) * | 2012-11-20 | 2013-03-13 | 西南石油大学 | 一种环保延缓交联凝胶调剖剂及其制备方法 |
CN103396776A (zh) * | 2013-07-12 | 2013-11-20 | 西安石油大学 | 一种油水井自生泡沫解堵剂及解堵工艺 |
-
2014
- 2014-07-10 CN CN201410326290.9A patent/CN104087280B/zh not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101775273A (zh) * | 2009-01-09 | 2010-07-14 | 中国石油化工股份有限公司 | 一种抗高温油气井固井用基液及制备方法和应用 |
CN101712865A (zh) * | 2009-11-25 | 2010-05-26 | 中国石油天然气股份有限公司 | 一种粘弹性弱凝胶调驱剂 |
CN102965088A (zh) * | 2012-11-20 | 2013-03-13 | 西南石油大学 | 一种环保延缓交联凝胶调剖剂及其制备方法 |
CN103396776A (zh) * | 2013-07-12 | 2013-11-20 | 西安石油大学 | 一种油水井自生泡沫解堵剂及解堵工艺 |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104774604A (zh) * | 2014-10-29 | 2015-07-15 | 中国石油化工股份有限公司 | 一种含氟聚氨酯类co2气溶性发泡剂及其制备方法和用途 |
CN104774604B (zh) * | 2014-10-29 | 2017-09-29 | 中国石油化工股份有限公司 | 一种含氟聚氨酯类co2气溶性发泡剂及其制备方法和用途 |
CN104929568B (zh) * | 2015-05-06 | 2018-02-23 | 中国石油化工股份有限公司 | 一种用于气藏控水的施工方法 |
CN104929568A (zh) * | 2015-05-06 | 2015-09-23 | 中国石油化工股份有限公司 | 一种用于气藏控水的施工方法 |
CN107435532A (zh) * | 2016-05-27 | 2017-12-05 | 中国石油化工股份有限公司 | 一种利用co2响应表面活性剂控制co2驱气窜的方法 |
CN106318345A (zh) * | 2016-08-18 | 2017-01-11 | 库尔勒同益工贸有限责任公司 | 一种钻井液用低荧光防塌封堵剂及其制备方法 |
CN106995689A (zh) * | 2017-05-24 | 2017-08-01 | 中国石油大学(北京) | 一种二氧化碳驱油用复合型防气窜剂 |
CN108194072A (zh) * | 2018-01-19 | 2018-06-22 | 中国地质大学(北京) | 基于片状支撑剂和气润湿反转剂的储层压裂方法 |
CN109372478A (zh) * | 2018-12-21 | 2019-02-22 | 中国石油大学胜利学院 | 一种确定非混相气驱油开采方式的实验方法及装置 |
CN109372478B (zh) * | 2018-12-21 | 2021-02-09 | 中国石油大学胜利学院 | 一种确定非混相气驱油开采方式的实验方法及装置 |
CN110043233A (zh) * | 2019-05-16 | 2019-07-23 | 中国石油化工股份有限公司 | 一种超高压注氮气的安全控制方法及装置 |
CN113494263A (zh) * | 2020-04-08 | 2021-10-12 | 中国石油化工股份有限公司 | 致密油藏油井水窜裂缝封堵方法、体积计算方法及装置 |
US11236264B2 (en) | 2020-06-08 | 2022-02-01 | Saudi Arabian Oil Company | Methods and compositions using a combination of zwitterionic surfactants and gemini surfactants as diversion agents |
CN114427375A (zh) * | 2020-09-21 | 2022-05-03 | 中国石油化工股份有限公司 | 一种溶洞油藏密度选择性堵水体系及其制备方法 |
CN112063374A (zh) * | 2020-10-13 | 2020-12-11 | 中海油田服务股份有限公司 | 一种封堵剂 |
CN114989796A (zh) * | 2021-03-02 | 2022-09-02 | 中国石油天然气股份有限公司 | 一种防气窜体系及其应用 |
CN114989796B (zh) * | 2021-03-02 | 2024-05-28 | 中国石油天然气股份有限公司 | 一种防气窜体系及其应用 |
CN114737924A (zh) * | 2022-04-20 | 2022-07-12 | 中国矿业大学(北京) | 一种水平井分段压裂煤体瓦斯抽采模拟装置及使用方法 |
US11959017B1 (en) | 2022-10-07 | 2024-04-16 | Saudi Arabian Oil Company | Methods and materials for wellbore fluid diversion using visco-elastic surfactants |
US12071838B2 (en) | 2022-10-07 | 2024-08-27 | Saudi Arabian Oil Company | Viscoelastic surfactants for acid diversion in downhole operations |
Also Published As
Publication number | Publication date |
---|---|
CN104087280B (zh) | 2016-09-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104087280A (zh) | 一种低渗透油藏二氧化碳非混相驱抑窜封堵体系及封堵方法 | |
US6325147B1 (en) | Enhanced oil recovery process with combined injection of an aqueous phase and of at least partially water-miscible gas | |
CN103320105B (zh) | 可循环使用的微泡钻井液 | |
CN104927817B (zh) | 一种三相自生泡沫堵水剂 | |
CN105154055B (zh) | 一种超低界面张力泡沫驱油体系及其使用方法 | |
CN103834376B (zh) | 用油田回注水配制的自生气泡沫冻胶调剖剂及其制备方法与应用 | |
CN104213870B (zh) | 一种水驱稠油油藏人造泡沫油开采方法 | |
US10793763B2 (en) | Ultra-dry three-phase flue gas foam for oil-gas fields and preparation method thereof | |
CN110551493B (zh) | 一种凝胶泡沫携带改性二硫化钼体系的制备方法 | |
CN107652961A (zh) | 一种抗凝析油泡排剂及其制备方法和应用 | |
CN103834379B (zh) | 一种蠕虫状胶束泡沫体系以及用其提高采收率的方法 | |
CN104893702B (zh) | 一种用于含h2s气体的产水气井排水采气用的泡排剂 | |
CN106800921A (zh) | 广温高矿化度调堵用全能冻胶 | |
CN105156066B (zh) | 一种火烧油层开采过程中的熟石灰封堵方法 | |
CN105586022B (zh) | 一种抗高温油包水基钻井液及其制备方法 | |
CN102816558A (zh) | 一种深部调剖堵水用堵剂及其制备方法 | |
CN102434137A (zh) | 超低界面张力耦合式空气泡沫驱油方法 | |
CN110776899A (zh) | 一种高温高盐油藏原位乳化增黏体系及其应用 | |
CN102585788B (zh) | 一种过饱和氯化钠固井水泥浆体系 | |
CN105586020B (zh) | 一种全油基钻井液及其制备方法 | |
CN106947450A (zh) | 一种具有低初始粘度的深部调驱剂及其制备方法 | |
CN107739599A (zh) | 一种高温用低密度堵水剂及其制备方法和现场使用方法 | |
CN108531153A (zh) | 一种耐高温石油树脂分散体堵剂及其制备方法与应用 | |
CN110467910A (zh) | 驱油剂组合物及其制备方法和稠油降粘吞吐开采方法 | |
CN100489053C (zh) | 一种封堵大孔道的凝胶 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
CB03 | Change of inventor or designer information |
Inventor after: Pu Chunsheng Inventor after: He Yanlong Inventor after: Wu Feipeng Inventor after: Gu Xiaoyu Inventor after: Liu Hongzhi Inventor after: Zhang Lei Inventor after: Zheng Liming Inventor after: Liu Jing Inventor before: Pu Chunsheng Inventor before: He Yanlong Inventor before: Wu Feipeng Inventor before: Zhang Lei Inventor before: Gu Xiaoyu Inventor before: Zheng Liming |
|
COR | Change of bibliographic data | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 |