发明申请
- 专利标题: METHOD AND APPARATUS FOR DEEP TRANSIENT RESISTIVITY MEASUREMENT WHILE DRILLING
- 专利标题(中): 钻井时深层瞬态电阻率测量方法与装置
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申请号: US13713662申请日: 2012-12-13
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公开(公告)号: US20140172304A1公开(公告)日: 2014-06-19
- 发明人: Arcady Reiderman , Sushant M. Dutta
- 申请人: Arcady Reiderman , Sushant M. Dutta
- 申请人地址: US TX Houston
- 专利权人: Baker Hughes Incorporated
- 当前专利权人: Baker Hughes Incorporated
- 当前专利权人地址: US TX Houston
- 主分类号: G01V13/00
- IPC分类号: G01V13/00 ; G01V3/34
摘要:
A method for estimating a property of an earth formation penetrated by a borehole includes conveying a drill tubular through the borehole and transmitting a signal into the formation with a transmitter transducer disposed at the drill tubular. The method further includes receiving a first signal with a first receiver transducer having a sensitivity oriented in a first direction and disposed an axial distance from the transmitter transducer and receiving a second signal with a second receiver transducer having a sensitivity oriented in a second direction different from the first direction and disposed an axial distance from the transmitter transducer. The method also includes calculating a corrected signal that corrects for at least one of bending and torsion of the drill tubular between the transmitter transducer and the first and second receiver transducers using the first signal and the second signal and estimating the property using the corrected signal.