发明名称 |
DRILL-BIT SEISMIC WITH DOWNHOLE SENSORS |
摘要 |
A drill-bit seismic method where the seismic receivers are located in the BHA. The data detected by these receivers is processed by a downhole processing unit in order to estimate the interval velocity of the seismic wave between the sensors and between the bit and a sensor. Additionally, the processed data might provide the distance to a seismic reflector close to the borehole and the average seismic velocity between the well and this reflector. The processed data can be transmitted to surface location by mud-pulse telemetry. The pilot signal can be also used to process seismic data recorded by receivers located at the earth surface (or close to it). |
申请公布号 |
WO2013032817(A2) |
申请公布日期 |
2013.03.07 |
申请号 |
WO2012US51899 |
申请日期 |
2012.08.22 |
申请人 |
BAKER HUGHES INCORPORATED;COMAN, RADU;KUMAR, SUNIL |
发明人 |
COMAN, RADU;KUMAR, SUNIL |
分类号 |
G01V1/44;G01V1/48 |
主分类号 |
G01V1/44 |
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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