Invention Grant
- Patent Title: Apparatus and method for clock shift correction for measurement-while-drilling measurements
- Patent Title (中): 用于测量同时测量的时钟偏移校正的装置和方法
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Application No.: US11949444Application Date: 2007-12-03
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Publication No.: US08902695B2Publication Date: 2014-12-02
- Inventor: Dmitriy Dashevskiy , Patrick J. McGinley , John D. Macpherson , Andrew G. Brooks , Thomas G. Dahl , Mitchell G. Pinnell , Paul Gerard Cairns , Robin F. Randall , Mark Andrew Hill , Edward W. Robnett
- Applicant: Dmitriy Dashevskiy , Patrick J. McGinley , John D. Macpherson , Andrew G. Brooks , Thomas G. Dahl , Mitchell G. Pinnell , Paul Gerard Cairns , Robin F. Randall , Mark Andrew Hill , Edward W. Robnett
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agency: Cantor Colburn LLP
- Main IPC: G01V1/40
- IPC: G01V1/40 ; G01V11/00 ; E21B47/00
Abstract:
The disclosure provides a method which includes transmitting signals over a time period between a downhole location and a surface location during drilling of a wellbore; recording the time of each signal at the surface using a surface clock and the time of each signal downhole using a downhole clock; and correcting the downhole measurements using the recorded times.
Public/Granted literature
- US20080137474A1 Apparatus and Method for Clock Shift Correction for Measurement-While-Drilling Measurements Public/Granted day:2008-06-12
Information query
