CN115247552A - 煤炭地下气化井筒的密封方法 - Google Patents
煤炭地下气化井筒的密封方法 Download PDFInfo
- Publication number
- CN115247552A CN115247552A CN202110462514.9A CN202110462514A CN115247552A CN 115247552 A CN115247552 A CN 115247552A CN 202110462514 A CN202110462514 A CN 202110462514A CN 115247552 A CN115247552 A CN 115247552A
- Authority
- CN
- China
- Prior art keywords
- annulus
- gasification
- annular space
- water
- coal
- 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
- 238000002309 gasification Methods 0.000 title claims abstract description 108
- 239000003245 coal Substances 0.000 title claims abstract description 97
- 238000007789 sealing Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 154
- 238000002347 injection Methods 0.000 claims abstract description 82
- 239000007924 injection Substances 0.000 claims abstract description 82
- 238000006243 chemical reaction Methods 0.000 claims abstract description 53
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000000446 fuel Substances 0.000 claims abstract description 27
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000001301 oxygen Substances 0.000 claims abstract description 17
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims description 36
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 230000002706 hydrostatic effect Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000005065 mining Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000003034 coal gas Substances 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- 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
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/243—Combustion in situ
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
-
- 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
- E21B43/166—Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
- E21B43/168—Injecting a gaseous medium
-
- 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
- E21B43/295—Gasification of minerals, e.g. for producing mixtures of combustible gases
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
Description
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110462514.9A CN115247552B (zh) | 2021-04-27 | 2021-04-27 | 煤炭地下气化井筒的密封方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110462514.9A CN115247552B (zh) | 2021-04-27 | 2021-04-27 | 煤炭地下气化井筒的密封方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN115247552A true CN115247552A (zh) | 2022-10-28 |
CN115247552B CN115247552B (zh) | 2024-06-25 |
Family
ID=83697062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110462514.9A Active CN115247552B (zh) | 2021-04-27 | 2021-04-27 | 煤炭地下气化井筒的密封方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN115247552B (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114704236A (zh) * | 2021-12-28 | 2022-07-05 | 中国石油天然气集团有限公司 | 煤炭地下气化用点火燃烧器及点火方法 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0030430A1 (en) * | 1979-11-28 | 1981-06-17 | The University Of Newcastle Research Associates Limited | Underground gasification of coal |
CN1169501A (zh) * | 1996-06-27 | 1998-01-07 | 柴兆喜 | 换管注气点后退式煤层气化方法 |
CN102094615A (zh) * | 2010-12-17 | 2011-06-15 | 中国石油集团长城钻探工程有限公司 | 煤层气水平井热力筛管完井方法 |
CN103993852A (zh) * | 2014-05-15 | 2014-08-20 | 中国石油天然气股份有限公司 | 气井不压井液封气井口防喷系统 |
WO2014186823A1 (en) * | 2013-05-23 | 2014-11-27 | Linc Energy Ltd | Oxidant and water injection apparatus |
CN104653166A (zh) * | 2014-12-24 | 2015-05-27 | 新奥气化采煤有限公司 | 煤炭地下气化过程中汇水量控制方法及煤炭地下气化方法 |
CN106121617A (zh) * | 2016-08-24 | 2016-11-16 | 中为(上海)能源技术有限公司 | 用于煤炭地下气化工艺的余热回收产品井系统及操作方法 |
CN106150472A (zh) * | 2016-08-28 | 2016-11-23 | 中为(上海)能源技术有限公司 | 用于煤炭地下气化工艺的接合管注入系统及操作方法 |
WO2018212674A1 (ru) * | 2017-05-18 | 2018-11-22 | Владимир Георгиевич КИРЯЧЕК | Способ добычи углеводородов из нефтекерогенсодержащих пластов и технологический комплекс |
-
2021
- 2021-04-27 CN CN202110462514.9A patent/CN115247552B/zh active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0030430A1 (en) * | 1979-11-28 | 1981-06-17 | The University Of Newcastle Research Associates Limited | Underground gasification of coal |
CN1169501A (zh) * | 1996-06-27 | 1998-01-07 | 柴兆喜 | 换管注气点后退式煤层气化方法 |
CN102094615A (zh) * | 2010-12-17 | 2011-06-15 | 中国石油集团长城钻探工程有限公司 | 煤层气水平井热力筛管完井方法 |
WO2014186823A1 (en) * | 2013-05-23 | 2014-11-27 | Linc Energy Ltd | Oxidant and water injection apparatus |
CN103993852A (zh) * | 2014-05-15 | 2014-08-20 | 中国石油天然气股份有限公司 | 气井不压井液封气井口防喷系统 |
CN104653166A (zh) * | 2014-12-24 | 2015-05-27 | 新奥气化采煤有限公司 | 煤炭地下气化过程中汇水量控制方法及煤炭地下气化方法 |
CN106121617A (zh) * | 2016-08-24 | 2016-11-16 | 中为(上海)能源技术有限公司 | 用于煤炭地下气化工艺的余热回收产品井系统及操作方法 |
CN106150472A (zh) * | 2016-08-28 | 2016-11-23 | 中为(上海)能源技术有限公司 | 用于煤炭地下气化工艺的接合管注入系统及操作方法 |
WO2018212674A1 (ru) * | 2017-05-18 | 2018-11-22 | Владимир Георгиевич КИРЯЧЕК | Способ добычи углеводородов из нефтекерогенсодержащих пластов и технологический комплекс |
Non-Patent Citations (1)
Title |
---|
赵向阳等: "Y油田油套环空腐蚀环境分析与 环空保护液优化", 《腐蚀科学与防护技术》, vol. 29, no. 1, pages 92 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114704236A (zh) * | 2021-12-28 | 2022-07-05 | 中国石油天然气集团有限公司 | 煤炭地下气化用点火燃烧器及点火方法 |
CN114704236B (zh) * | 2021-12-28 | 2024-05-17 | 中国石油天然气集团有限公司 | 煤炭地下气化用点火燃烧器及点火方法 |
Also Published As
Publication number | Publication date |
---|---|
CN115247552B (zh) | 2024-06-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8333239B2 (en) | Apparatus and method for downhole steam generation and enhanced oil recovery | |
RU2422618C1 (ru) | Система (варианты) и способ добычи природного сырья с использованием инжекции нагретой текучей среды | |
US3982592A (en) | In situ hydrogenation of hydrocarbons in underground formations | |
RU2586561C2 (ru) | Огневой теплогенератор, система и способ повышения нефтеотдачи пласта | |
US4185692A (en) | Underground linkage of wells for production of coal in situ | |
CN102767354B (zh) | 用蒸汽和二氧化碳采出粘性烃的方法 | |
US9540916B2 (en) | Apparatus and methods for recovery of hydrocarbons | |
US4050515A (en) | Insitu hydrogenation of hydrocarbons in underground formations | |
US4099567A (en) | Generating medium BTU gas from coal in situ | |
US20160123128A1 (en) | Gas injection apparatus with controllable gas injection point, gas injection process, and gasification method | |
US8091626B1 (en) | Downhole combustion unit and process for TECF injection into carbonaceous permeable zones | |
WO2014186823A1 (en) | Oxidant and water injection apparatus | |
CN115247552B (zh) | 煤炭地下气化井筒的密封方法 | |
US9115579B2 (en) | Apparatus and method for downhole steam generation and enhanced oil recovery | |
RU2391497C1 (ru) | Способ разработки месторождения высоковязкой нефти | |
RU2403382C1 (ru) | Способ разработки месторождения высоковязкой нефти | |
RU2429346C1 (ru) | Способ разработки месторождения высоковязкой нефти с использованием внутрипластового горения | |
US4901796A (en) | Well packing system | |
CN103046908B (zh) | 火驱受效井同心式排气掺稀采油生产管柱 | |
CN102454386A (zh) | 地下加热装置 | |
US3713482A (en) | Gas flow regulator for wellbore catalytic heaters | |
US3223165A (en) | Method for heating or igniting well formations with pyrophoric materials | |
CN211598595U (zh) | 用于煤炭地下气化工艺的固井系统 | |
CN110714737B (zh) | 用于煤炭地下气化工艺的固井系统和方法 | |
CN206053927U (zh) | 用于煤炭地下气化过程的氧化剂注入设备 |
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 | ||
TA01 | Transfer of patent application right | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20221215 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Applicant after: CHINA NATIONAL PETROLEUM Corp. Applicant after: CNPC ENGINEERING TECHNOLOGY R & D Co.,Ltd. Applicant after: CNPC JIANGHAN MACHINERY RESEARCH INSTITUTE Co.,Ltd. Applicant after: BEIJING PETROLEUM MACHINERY Co.,Ltd. Address before: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Applicant before: CHINA NATIONAL PETROLEUM Corp. Applicant before: CNPC ENGINEERING TECHNOLOGY R & D Co.,Ltd. Applicant before: CNPC JIANGHAN MACHINERY RESEARCH INSTITUTE Co.,Ltd. |
|
GR01 | Patent grant |