CN204252936U - 扩张式压裂防卡封隔器 - Google Patents
扩张式压裂防卡封隔器 Download PDFInfo
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- CN204252936U CN204252936U CN201420727800.9U CN201420727800U CN204252936U CN 204252936 U CN204252936 U CN 204252936U CN 201420727800 U CN201420727800 U CN 201420727800U CN 204252936 U CN204252936 U CN 204252936U
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- rubber
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- cartridge
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420727800.9U CN204252936U (zh) | 2014-11-28 | 2014-11-28 | 扩张式压裂防卡封隔器 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420727800.9U CN204252936U (zh) | 2014-11-28 | 2014-11-28 | 扩张式压裂防卡封隔器 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204252936U true CN204252936U (zh) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420727800.9U Expired - Lifetime CN204252936U (zh) | 2014-11-28 | 2014-11-28 | 扩张式压裂防卡封隔器 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204252936U (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116988754A (zh) * | 2022-04-26 | 2023-11-03 | 中国石油天然气股份有限公司 | 井下割缝管柱及地层造微裂缝的方法 |
-
2014
- 2014-11-28 CN CN201420727800.9U patent/CN204252936U/zh not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116988754A (zh) * | 2022-04-26 | 2023-11-03 | 中国石油天然气股份有限公司 | 井下割缝管柱及地层造微裂缝的方法 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180724 Address after: 225009 No. 188, Weiyang Road, Yangzhou, Jiangsu Co-patentee after: CHINA PETROCHEMICAL & CHEMICAL CORPORATION, JIANGSU OILFIELD BRANCH Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Co-patentee after: JIANGSU OILFIELD MINING DEVELOPMENT Co.,Ltd. Address before: 225009 No. 188, Weiyang Road, Yangzhou, Jiangsu Co-patentee before: CHINA PETROCHEMICAL & CHEMICAL CORPORATION, JIANGSU OILFIELD BRANCH Patentee before: CHINA PETROLEUM & CHEMICAL Corp. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150408 |
|
| CX01 | Expiry of patent term |