CN203925368U - Downhole drill circulating sleeve withdrawing device - Google Patents
Downhole drill circulating sleeve withdrawing device Download PDFInfo
- Publication number
- CN203925368U CN203925368U CN201420285640.7U CN201420285640U CN203925368U CN 203925368 U CN203925368 U CN 203925368U CN 201420285640 U CN201420285640 U CN 201420285640U CN 203925368 U CN203925368 U CN 203925368U
- Authority
- CN
- China
- Prior art keywords
- support bar
- circulating sleeve
- orientation joint
- screw rod
- cavity
- 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
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
Description
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420285640.7U CN203925368U (en) | 2014-05-30 | 2014-05-30 | Downhole drill circulating sleeve withdrawing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420285640.7U CN203925368U (en) | 2014-05-30 | 2014-05-30 | Downhole drill circulating sleeve withdrawing device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN203925368U true CN203925368U (en) | 2014-11-05 |
Family
ID=51821197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201420285640.7U Expired - Lifetime CN203925368U (en) | 2014-05-30 | 2014-05-30 | Downhole drill circulating sleeve withdrawing device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN203925368U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107717851A (en) * | 2017-10-26 | 2018-02-23 | 中国石油集团西部钻探工程有限公司 | Orienting cover withdrawing device |
-
2014
- 2014-05-30 CN CN201420285640.7U patent/CN203925368U/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107717851A (en) * | 2017-10-26 | 2018-02-23 | 中国石油集团西部钻探工程有限公司 | Orienting cover withdrawing device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20151118 Address after: 100029 Beijing Chaoyang District Hui Xin a No. twelve layer 6 Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: DRILLING WELL ENGINEERING TECHNOLOGY COMPANY OF SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: DRILLING WELL ENGINEERING TECHNOLOGY COMPANY OF SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. |
|
TR01 | Transfer of patent right |
Effective date of registration: 20220215 Address after: 100029 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: Sinopec Jingwei Co.,Ltd. Patentee after: Shengli directional well company of Sinopec Jingwei Co.,Ltd. Address before: 12 / F, No. 6, Huixin a, Chaoyang District, Beijing 100029 Patentee before: SINOPEC OILFIELD SERVICE Corp. Patentee before: DRILLING WELL ENGINEERING TECHNOLOGY COMPANY OF SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. |
|
TR01 | Transfer of patent right | ||
CX01 | Expiry of patent term |
Granted publication date: 20141105 |
|
CX01 | Expiry of patent term |