发明名称 |
Rotary control of rotary steerables using servo-accelerometers |
摘要 |
A system and method for steering a rotating downhole drilling tool is provided. The downhole tool includes an inclinometer having directional accelerometers capable of measuring drilling parameters, such as angular position and centripetal acceleration, of the downhole tool. An offset accelerometer is further included for determining centripetal acceleration of the downhole tool. Collar rotation rate and the toolface may be determined from the drilling parameters. Filters, analog to digital converters and processor devices may be used to process the signals and send commands in response thereto for steering the tool.
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申请公布号 |
US2003183423(A1) |
申请公布日期 |
2003.10.02 |
申请号 |
US20020113136 |
申请日期 |
2002.03.29 |
申请人 |
BRAZIL STEWART BLAKE;KUCHENBECKER MARK;ZHANG RONGGANG |
发明人 |
BRAZIL STEWART BLAKE;KUCHENBECKER MARK;ZHANG RONGGANG |
分类号 |
E21B7/04;E21B47/024;(IPC1-7):E21B7/04 |
主分类号 |
E21B7/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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