CN2431392Y - 机液一体化自动垂直钻井工具 - Google Patents
机液一体化自动垂直钻井工具 Download PDFInfo
- Publication number
- CN2431392Y CN2431392Y CN 00243589 CN00243589U CN2431392Y CN 2431392 Y CN2431392 Y CN 2431392Y CN 00243589 CN00243589 CN 00243589 CN 00243589 U CN00243589 U CN 00243589U CN 2431392 Y CN2431392 Y CN 2431392Y
- Authority
- CN
- China
- Prior art keywords
- directional control
- pilot operated
- operated directional
- hydraulic cylinder
- valve
- 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
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- Earth Drilling (AREA)
Abstract
Description
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 00243589 CN2431392Y (zh) | 2000-07-14 | 2000-07-14 | 机液一体化自动垂直钻井工具 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 00243589 CN2431392Y (zh) | 2000-07-14 | 2000-07-14 | 机液一体化自动垂直钻井工具 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2431392Y true CN2431392Y (zh) | 2001-05-23 |
Family
ID=33603435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 00243589 Expired - Lifetime CN2431392Y (zh) | 2000-07-14 | 2000-07-14 | 机液一体化自动垂直钻井工具 |
Country Status (1)
Country | Link |
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CN (1) | CN2431392Y (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100432367C (zh) * | 2002-09-10 | 2008-11-12 | 中国地质大学(武汉) | 自动垂直钻具 |
CN101484661B (zh) * | 2006-06-30 | 2013-07-24 | 贝克休斯公司 | 用于运行钻井工具的液压定量供应阀 |
-
2000
- 2000-07-14 CN CN 00243589 patent/CN2431392Y/zh not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100432367C (zh) * | 2002-09-10 | 2008-11-12 | 中国地质大学(武汉) | 自动垂直钻具 |
CN101484661B (zh) * | 2006-06-30 | 2013-07-24 | 贝克休斯公司 | 用于运行钻井工具的液压定量供应阀 |
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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: CHINA PETROLEUM GROUP DRILLING ENGINEERING TECHNO Free format text: FORMER OWNER: INST. OF WELL DRILLING TECHNOLOGY, ACADEMY OF PETROLEUM EXPLORATION AND DEVELOPM Effective date: 20070720 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20070720 Address after: 100083 No. 20, Beijing, Xueyuan Road Patentee after: Drilling Engineering Technology Research Institute, China National Petroleum Corp. Address before: 100083 No. 20, Beijing, Xueyuan Road Patentee before: Drilling Technology Int., Research Inst. of Petroleum Exploration Development |
|
CX01 | Expiry of patent term |
Granted publication date: 20010523 |