发明授权
- 专利标题： Downhole noise cancellation in mud-pulse telemetry
- 专利标题（中）： 泥浆脉冲遥测中的井下噪声消除
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申请号： US11855686申请日： 2007-09-14
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公开(公告)号： US08811118B2公开(公告)日： 2014-08-19
- 发明人: Hanno Reckmann
- 申请人： Hanno Reckmann
- 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
- 代理机构： Mossman Kumar & Tyler PC
- 主分类号： E21B47/14
- IPC分类号： E21B47/14 ; G01V1/40 ; E21B47/18 ; G01V3/00
摘要：
Pressure measurements are made using a pressure sensor in the proximity of the drillbit during drilling operations. A filtered version of the pressure measurements is provided to a pulser for a mud-pulse telemetry system so as to cancel pressure variations due to drilling noise while a telemetry signal is being sent. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
公开/授权文献
- US20080074948A1 Downhole Noise Cancellation in Mud-Pulse Telemetry 公开/授权日：2008-03-27
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