CN203847071U - Downhole safety valve - Google Patents
Downhole safety valve Download PDFInfo
- Publication number
- CN203847071U CN203847071U CN201420266823.4U CN201420266823U CN203847071U CN 203847071 U CN203847071 U CN 203847071U CN 201420266823 U CN201420266823 U CN 201420266823U CN 203847071 U CN203847071 U CN 203847071U
- Authority
- CN
- China
- Prior art keywords
- valve
- connector
- valve body
- central tube
- storm
- 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.)
- Expired - Lifetime
Links
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract 2
- 238000007906 compression Methods 0.000 abstract 2
- 230000006837 decompression Effects 0.000 abstract 2
- 239000003208 petroleum Substances 0.000 abstract 1
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 210000000664 rectum Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Safety Valves (AREA)
Abstract
Description
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420266823.4U CN203847071U (en) | 2014-05-23 | 2014-05-23 | Downhole safety valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420266823.4U CN203847071U (en) | 2014-05-23 | 2014-05-23 | Downhole safety valve |
Publications (1)
Publication Number | Publication Date |
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CN203847071U true CN203847071U (en) | 2014-09-24 |
Family
ID=51560105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201420266823.4U Expired - Lifetime CN203847071U (en) | 2014-05-23 | 2014-05-23 | Downhole safety valve |
Country Status (1)
Country | Link |
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CN (1) | CN203847071U (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105986779A (en) * | 2015-01-30 | 2016-10-05 | 中国石油天然气股份有限公司 | Underground mixed gas fracturing valve |
CN106150455A (en) * | 2015-04-01 | 2016-11-23 | 中国石油化工股份有限公司 | Located type safety control |
WO2018223205A1 (en) * | 2017-06-06 | 2018-12-13 | Ouro Negro Tecnologias Em Equipamentos Industriais S/A | Fully electric downhole safety tool |
CN112412396A (en) * | 2020-11-19 | 2021-02-26 | 中国石油大学(北京) | Downhole safety valve |
-
2014
- 2014-05-23 CN CN201420266823.4U patent/CN203847071U/en not_active Expired - Lifetime
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105986779A (en) * | 2015-01-30 | 2016-10-05 | 中国石油天然气股份有限公司 | Underground mixed gas fracturing valve |
CN105986779B (en) * | 2015-01-30 | 2018-09-04 | 中国石油天然气股份有限公司 | Underground mixed gas fracturing valve |
CN106150455A (en) * | 2015-04-01 | 2016-11-23 | 中国石油化工股份有限公司 | Located type safety control |
CN106150455B (en) * | 2015-04-01 | 2019-01-25 | 中国石油化工股份有限公司 | Located type safety control |
WO2018223205A1 (en) * | 2017-06-06 | 2018-12-13 | Ouro Negro Tecnologias Em Equipamentos Industriais S/A | Fully electric downhole safety tool |
GB2577216A (en) * | 2017-06-06 | 2020-03-18 | Ouro Negro Tecnologias Em Equipamentos Ind S/A | Fully electric downhole safety tool |
GB2577216B (en) * | 2017-06-06 | 2022-12-28 | Ouro Negro Tecnologias Em Equipamentos Ind S/A | Fully electric downhole safety tool |
CN112412396A (en) * | 2020-11-19 | 2021-02-26 | 中国石油大学(北京) | Downhole safety valve |
CN112412396B (en) * | 2020-11-19 | 2021-10-26 | 中国石油大学(北京) | Downhole safety valve |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: DONGYING RUIFENG PETROLEUM TECHNOLOGY DEVELOPMENT Free format text: FORMER OWNER: KONG LISHENG Effective date: 20150608 Owner name: SHANDONG RUIFENG PETROLEUM TECHNOLOGY CO., LTD. QI Effective date: 20150608 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 257000 DONGYING, SHANDONG PROVINCE TO: 257067 DONGYING, SHANDONG PROVINCE |
|
TR01 | Transfer of patent right |
Effective date of registration: 20150608 Address after: 257067 Shandong Province, Dongying city Dongying District five bridge Taishan Road East Patentee after: DONGYING RUIFENG PETROLEUM TECHNOLOGY DEVELOPMENT CO.,LTD. Patentee after: SHANDONG RUIFENG PETROLEUM TECHNOLOGY Co.,Ltd. Patentee after: QINGDAO RUIXIN PETROLEUM EQUIPMENT MANUFACTURING Co.,Ltd. Address before: 257000 Shandong province Dongying City West Road No. 518 Patentee before: Kong Lisheng |
|
CX01 | Expiry of patent term |
Granted publication date: 20140924 |
|
CX01 | Expiry of patent term |