CN108690595A - 一种油气井自生气泡沫增能提高采收率的方法 - Google Patents
一种油气井自生气泡沫增能提高采收率的方法 Download PDFInfo
- Publication number
- CN108690595A CN108690595A CN201810245921.2A CN201810245921A CN108690595A CN 108690595 A CN108690595 A CN 108690595A CN 201810245921 A CN201810245921 A CN 201810245921A CN 108690595 A CN108690595 A CN 108690595A
- Authority
- CN
- China
- Prior art keywords
- oil
- gas
- ammonium
- recovery ratio
- energization
- 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
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000011084 recovery Methods 0.000 title claims abstract description 14
- 239000006260 foam Substances 0.000 title claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 239000004088 foaming agent Substances 0.000 claims abstract description 14
- 239000007864 aqueous solution Substances 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 5
- GDDNTTHUKVNJRA-UHFFFAOYSA-N 3-bromo-3,3-difluoroprop-1-ene Chemical compound FC(F)(Br)C=C GDDNTTHUKVNJRA-UHFFFAOYSA-N 0.000 claims description 6
- PQUCIEFHOVEZAU-UHFFFAOYSA-N Diammonium sulfite Chemical compound [NH4+].[NH4+].[O-]S([O-])=O PQUCIEFHOVEZAU-UHFFFAOYSA-N 0.000 claims description 5
- 239000002280 amphoteric surfactant Substances 0.000 claims description 5
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims description 4
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 4
- YOWAEZWWQFSEJD-UHFFFAOYSA-N quinoxalin-2-amine Chemical compound C1=CC=CC2=NC(N)=CN=C21 YOWAEZWWQFSEJD-UHFFFAOYSA-N 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 3
- AOSFMYBATFLTAQ-UHFFFAOYSA-N 1-amino-3-(benzimidazol-1-yl)propan-2-ol Chemical compound C1=CC=C2N(CC(O)CN)C=NC2=C1 AOSFMYBATFLTAQ-UHFFFAOYSA-N 0.000 claims description 2
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 claims description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims description 2
- 239000001099 ammonium carbonate Substances 0.000 claims description 2
- 239000004202 carbamide Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000002360 explosive Substances 0.000 abstract description 7
- 239000000203 mixture Substances 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 3
- 239000000047 product Substances 0.000 abstract description 3
- 239000004215 Carbon black (E152) Substances 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 239000007795 chemical reaction product Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 229930195733 hydrocarbon Natural products 0.000 abstract description 2
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 2
- -1 inflammable Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 25
- 239000003921 oil Substances 0.000 description 20
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003129 oil well Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 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
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/584—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 surfactants
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
本发明公开了一种油气井自生气泡沫增能提高采收率的方法，该方法是向地层中注入一定量的含有30～50％产气剂及0.1～0.2％起泡剂的水溶液，在地层条件下产气剂中几种组分相互反应，放出热量，产生大量气体，气体与起泡剂作用，产生大量泡沫，通过“胀”、“穿”等作用诱发非动用油藏，促进油层流体连通，从而提高油气采收率。并且所产气物均属于非易燃、易爆品，相互接触、混合、反应生成产物也无易燃、易爆现象，整个反应过程不存在安全隐患，反应产物属于非易燃、易爆物，与地层油气接触也不会发生易燃、易爆现象，安全环保。
Description
技术领域
本发明涉及一种油气井自生气泡沫增能提高采收率的方法，属于油田增产技术领域。
背景技术
伴随重复压裂理论和实践发展，近些年人们发现油田投入开发后，随着开采时间的增长，会不断地消耗油层本身的能量，油层压力不断下降，地下原油不断地脱气，粘度增加使得油井产量大大减少，甚至停喷停产，造成地下残留大量的死油采不出来。为了弥补原油采出后所造成的地下亏空，保持油层的压力，实现油井稳产高产，必须在重复压裂前对施工井进行人工增能，将地层压力恢复至一定程度，确保重复压裂增产措施的有效性，同时减小压裂液对地层的伤害、提高返排率、缩短排液见产周期。目前重复压裂前主要的人工增能方式有注二氧化碳/氮气、注水、地层自生气增能三大方式。
发明内容
本发明的目的在于提供一种油气井自生气泡沫增能提高采收率的方法，该方法不仅能提高油气采收率，而且安全环保。
一种油气井自生气泡沫增能提高采收率的方法，向地层中注入含有30～50％产气剂及0.1～0.2％起泡剂的水溶液，其中，所述起泡剂为孪链两性表面活性剂，其化学结构式为：
化学结构式中：R为C13-C21的支链或支链烷基，n为3～6，p为2～4。
进一步地，所述产气剂为尿素、氨基甲酸铵、碳酸氨、碳酸氢氨、亚硝酸铵、亚硫酸铵、亚硫酸氢铵、硝酸铵、过氯酸铵中的一种或几种组合。
本发明向地层中注入产气剂及发泡剂，在地层条件下产气剂中几种组分相互反应，放出热量，产生大量气体，气体与起泡剂作用，产生大量泡沫，通过“胀”、“穿”等作用诱发非动用油藏，促进油层流体连通，从而提高油气采收率。并且所产气物均属于非易燃、易爆品，相互接触、混合、反应生成产物也无易燃、易爆现象，整个反应过程不存在安全隐患，反应产物属于非易燃、易爆物，与地层油气接触也不会发生易燃、易爆现象，安全环保。
具体实施方式
实施例1
本实施例提供的油气井自生气泡沫增能提高采收率的方法是指向地层中注入30％的产气剂水溶液及0.2％的起泡剂，其中，所述起泡剂为孪链两性表面活性剂，其化学结构式为：
所述产气剂为氨基甲酸铵和亚硝酸胺的混合物，氨基甲酸铵和亚硝酸胺的摩尔比为2:8。
将本实施例方法应用于某油田27-310油井，该井日产液比之前增加60方，最高日增油28吨，累计生产205天，产油1850吨，产水3012方。
实施例2
本实施例提供的油气井自生气泡沫增能提高采收率的方法是指向地层中注入50％的产气剂水溶液及0.1％的起泡剂，其中，所述起泡剂为孪链两性表面活性剂，其化学结构式为：
所述产气剂为过氯酸铵和亚硫酸胺的混合物，过氯酸铵和亚硫酸胺的摩尔比为3:7。
将本实施例方法应用于某油田52—10气井，实施后，日产气比措施前增加15800方，最高日产气量达26500方，累计生产265天，增气量达500万方。
实施例3
本实施例提供的油气井自生气泡沫增能提高采收率的方法是指向地层中注入40％的产气剂水溶液及0.1％的起泡剂，其中，所述起泡剂为孪链两性表面活性剂，其化学结构式为：
所述产气剂为过氯酸铵和亚硫酸胺的混合物，过氯酸铵和亚硫酸胺的摩尔比为2:8。
将本实施例方法应用于某油田52—10气井，实施后，稳定后日产气比措施前增加15800方，最高日产气量达26500方，累计生产265天，增气量达500万方。
以上所述仅是本发明优选的实施方式，但本发明的保护范围并不局限于此，任何基于本发明所提供的技术方案和发明构思进行的改造和替换都应涵盖在本发明的保护范围内。
Claims (2)
1.一种油气井自生气泡沫增能提高采收率的方法，其特征在于：向地层中注入含有30～50％产气剂及0.1～0.2％起泡剂的水溶液，其中，所述起泡剂为孪链两性表面活性剂，其化学结构式为：
式中：R为C13-C21的支链或支链烷基，n为3～6，p为2～4。
2.根据权利要求1所述的油气井自生气泡沫增能提高采收率的方法，其特征在于：所述产气剂为尿素、氨基甲酸铵、碳酸氨、碳酸氢氨、亚硝酸铵、亚硫酸铵、亚硫酸氢铵、硝酸铵、过氯酸铵中的一种或几种的组合。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810245921.2A CN108690595B (zh) | 2018-03-23 | 2018-03-23 | 一种油气井自生气泡沫增能提高采收率的方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810245921.2A CN108690595B (zh) | 2018-03-23 | 2018-03-23 | 一种油气井自生气泡沫增能提高采收率的方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108690595A true CN108690595A (zh) | 2018-10-23 |
| CN108690595B CN108690595B (zh) | 2021-02-26 |
Family
ID=63844556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810245921.2A Active CN108690595B (zh) | 2018-03-23 | 2018-03-23 | 一种油气井自生气泡沫增能提高采收率的方法 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108690595B (zh) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020236132A1 (en) * | 2019-05-17 | 2020-11-26 | Multi-Chem Group, L.L.C. | Low-dosage hydrate inhibitors |
| WO2021015837A1 (en) * | 2019-07-24 | 2021-01-28 | Saudi Arabian Oil Company | Methods for treating a subterranean formation with a foamed acid system |
| US10927291B2 (en) | 2019-07-24 | 2021-02-23 | Saudi Arabian Oil Company | Compositions for treating a subterranean formation with a foamed system and corresponding methods |
| US10961833B2 (en) | 2019-05-15 | 2021-03-30 | Saudi Arabian Oil Company | Sandstone stimulation using in-situ mud acid generation |
| US10961440B2 (en) | 2019-05-15 | 2021-03-30 | Saudi Arabian Oil Company | Sandstone stimulation using in-situ mud acid generation |
| US20220127521A1 (en) * | 2019-02-12 | 2022-04-28 | Innospec Limited | Treatment of subterranean formations |
| US20220127520A1 (en) * | 2019-02-12 | 2022-04-28 | Innospec Limited | Treatment of subterranean formations |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1346395A (zh) * | 1998-12-31 | 2002-04-24 | 阿克佐诺贝尔公司 | 阳离子双结构和相关的多亲水/憎水官能化合物及其作为表面活性剂的应用 |
| CN1927993A (zh) * | 2006-09-29 | 2007-03-14 | 山东大学 | 高温地层自生泡沫组合物及其在稠油开采中的应用 |
| CN101365767A (zh) * | 2005-11-07 | 2009-02-11 | 斯蒂潘公司 | 多阳离子粘弹性组合物 |
| CN102061158A (zh) * | 2010-11-26 | 2011-05-18 | 华鼎鸿基采油技术服务（北京）有限公司 | 一种泡沫增强聚合物驱油剂及驱油方法 |
| CN102838978A (zh) * | 2012-09-18 | 2012-12-26 | 济南大学 | 一种井下自生气泡沫复合驱油剂的制备方法及应用 |
| CN103711467A (zh) * | 2013-12-25 | 2014-04-09 | 东营盛世石油科技有限责任公司 | 一种用于自生co2提高采收率的配方 |
| CN103820093A (zh) * | 2012-11-19 | 2014-05-28 | 中国石油化工股份有限公司 | 一种活性防膨缩膨剂及其应用 |
| CN106567698A (zh) * | 2016-11-07 | 2017-04-19 | 中国石油大学(北京) | 一种聚驱后自生二氧化碳体系提高石油采收率的方法 |
| CN106634922A (zh) * | 2016-09-13 | 2017-05-10 | 中国海洋石油总公司 | 一种自生气泡沫驱油剂液及其应用和增注增产方法 |
| CN106928945A (zh) * | 2017-03-13 | 2017-07-07 | 西南石油大学 | 一种自生泡沫压井液及其制备方法以及自生泡沫组合物 |
| CN106946743A (zh) * | 2017-05-02 | 2017-07-14 | 中国科学技术大学 | 一种双子阳离子表面活性剂及其制备方法和压裂液 |
-
2018
- 2018-03-23 CN CN201810245921.2A patent/CN108690595B/zh active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1346395A (zh) * | 1998-12-31 | 2002-04-24 | 阿克佐诺贝尔公司 | 阳离子双结构和相关的多亲水/憎水官能化合物及其作为表面活性剂的应用 |
| CN101365767A (zh) * | 2005-11-07 | 2009-02-11 | 斯蒂潘公司 | 多阳离子粘弹性组合物 |
| CN1927993A (zh) * | 2006-09-29 | 2007-03-14 | 山东大学 | 高温地层自生泡沫组合物及其在稠油开采中的应用 |
| CN102061158A (zh) * | 2010-11-26 | 2011-05-18 | 华鼎鸿基采油技术服务（北京）有限公司 | 一种泡沫增强聚合物驱油剂及驱油方法 |
| CN102838978A (zh) * | 2012-09-18 | 2012-12-26 | 济南大学 | 一种井下自生气泡沫复合驱油剂的制备方法及应用 |
| CN103820093A (zh) * | 2012-11-19 | 2014-05-28 | 中国石油化工股份有限公司 | 一种活性防膨缩膨剂及其应用 |
| CN103711467A (zh) * | 2013-12-25 | 2014-04-09 | 东营盛世石油科技有限责任公司 | 一种用于自生co2提高采收率的配方 |
| CN106634922A (zh) * | 2016-09-13 | 2017-05-10 | 中国海洋石油总公司 | 一种自生气泡沫驱油剂液及其应用和增注增产方法 |
| CN106567698A (zh) * | 2016-11-07 | 2017-04-19 | 中国石油大学(北京) | 一种聚驱后自生二氧化碳体系提高石油采收率的方法 |
| CN106928945A (zh) * | 2017-03-13 | 2017-07-07 | 西南石油大学 | 一种自生泡沫压井液及其制备方法以及自生泡沫组合物 |
| CN106946743A (zh) * | 2017-05-02 | 2017-07-14 | 中国科学技术大学 | 一种双子阳离子表面活性剂及其制备方法和压裂液 |
Non-Patent Citations (7)
| Title |
|---|
| ANANT K.等: "Synthesis and Antibacterial Activity of Novel Amido-Amine-Based Cationic Gemini Surfactants", 《J SURFACT DETERG 》 * |
| 刘祥等: "十二烷基多季铵盐Gemini型阳离子表面活性剂的合成", 《上海化工》 * |
| 李刚森等: "反应型双子表面活性剂的合成及性能研究", 《精细与专用化学品》 * |
| 武俊文等: "阳离子型双子表面活性剂在制备耐高温、高矿化度泡排剂中的应用", 《石油钻采工艺》 * |
| 段明等: "含酰胺基Gemini阳离子表面活性剂的合成", 《应用化学》 * |
| 池田功等: "新型Gemini阳离子表面活性剂的合成和性能(3)――在烷基链中引入易水解基团促进生物降解", 《日用化学工业》 * |
| 韩力挥等: "Gemini季铵盐阳离子表面活性剂的合成及性能研究", 《化学与生物工程》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220127521A1 (en) * | 2019-02-12 | 2022-04-28 | Innospec Limited | Treatment of subterranean formations |
| US20220127520A1 (en) * | 2019-02-12 | 2022-04-28 | Innospec Limited | Treatment of subterranean formations |
| US11987751B2 (en) * | 2019-02-12 | 2024-05-21 | Innospec Limited | Treatment of subterranean formations |
| US10961833B2 (en) | 2019-05-15 | 2021-03-30 | Saudi Arabian Oil Company | Sandstone stimulation using in-situ mud acid generation |
| US10961440B2 (en) | 2019-05-15 | 2021-03-30 | Saudi Arabian Oil Company | Sandstone stimulation using in-situ mud acid generation |
| US11555145B2 (en) | 2019-05-15 | 2023-01-17 | Saudi Arabian Oil Company | Sandstone stimulation using in-situ mud acid generation |
| WO2020236132A1 (en) * | 2019-05-17 | 2020-11-26 | Multi-Chem Group, L.L.C. | Low-dosage hydrate inhibitors |
| WO2021015837A1 (en) * | 2019-07-24 | 2021-01-28 | Saudi Arabian Oil Company | Methods for treating a subterranean formation with a foamed acid system |
| US10927291B2 (en) | 2019-07-24 | 2021-02-23 | Saudi Arabian Oil Company | Compositions for treating a subterranean formation with a foamed system and corresponding methods |
| US10975293B2 (en) | 2019-07-24 | 2021-04-13 | Saudi Arabian Oil Company | Methods for treating a subterranean formation with a foamed acid system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108690595B (zh) | 2021-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108690595A (zh) | 一种油气井自生气泡沫增能提高采收率的方法 | |
| CN103333670B (zh) | 一种用于油水井解堵增能的层内自生气体系及其使用方法 | |
| CN104066812B (zh) | 利用原位氮气生成的致密气增产 | |
| US20140374108A1 (en) | Method for fracturing subterranean rock | |
| CN102391852B (zh) | 一种用于油气井酸化的自生气配方 | |
| CN102899012A (zh) | 自生酸、其制备方法和用途 | |
| NO328673B1 (no) | Bronnhulls-behandlingsfluid og fremgangsmate for a behandle en underjordisk formasjon som gjennomtrenges av et borehull | |
| CN104610954A (zh) | 一种适合陆相页岩气井压裂返排液处理水配制压裂液的配方及其制备方法 | |
| CN104312570B (zh) | 一种低腐蚀化学生热增压破胶剂及其制备方法 | |
| CN103711467A (zh) | 一种用于自生co2提高采收率的配方 | |
| CN103806885B (zh) | 一种注采系统的地层化学产热深部解堵方法 | |
| CN103114835B (zh) | 一种氮气辅助稠油地层乳化降粘开采方法 | |
| CN109762549A (zh) | 一种高效自产气泡沫压裂液及施工方法 | |
| CN105683330A (zh) | 用于非常规储层的使用固体酸的碳酸盐基浆料压裂 | |
| GB2582218A (en) | Treatment of subterranean formations | |
| MX2021004421A (es) | Proceso de fracturamiento de formaciones subterraneas. | |
| CN103670359A (zh) | 一种植物胶压裂液非降解性破胶的方法 | |
| CN105462573B (zh) | 一种油田注聚井增注用解堵剂 | |
| Altunina et al. | Enhanced oil recovery from Permian-Carboniferous deposit of high-viscosity oil in the Usinsk oilfield with physicochemical and complex technologies | |
| CN102977876A (zh) | 一种超低浓度瓜尔胶压裂液及低温煤层气井压裂方法 | |
| CN102838978B (zh) | 一种井下自生气泡沫复合驱油剂的制备方法及应用 | |
| GB1531142A (en) | Methods of reducing or suppressing aqueous penetration from underground formations into wells for oil and/or hydrocarbon gas production | |
| US20180127637A1 (en) | Methods of enhancing oil recovery | |
| GB2582217A (en) | Treatment of subterranean formations | |
| CN101319608A (zh) | 天然气井下脱除硫化氢的方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Room 1318, 13th floor, tianzijie commercial building, No.46, East 5th section of 1st ring road, Jinjiang District, Chengdu, Sichuan 610065 Applicant after: Jetbeton Petroleum Technology Group Co., Ltd Address before: 100102 room 2402, unit 1, building 302, Wangjing Shangjing new line, Chaoyang District, Beijing Applicant before: BEIJING GEPETTO OIL TECHNOLOGY Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |