Method for determining the azimuth of a borehole
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United States of America Patent
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Jul 28, 1987
Grant Date -
N/A
app pub date -
Feb 26, 1986
filing date -
Feb 26, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for eliminating the influence of drill string magnetization on an azimuth measurement made by a magnetometer package disposed in the drill string. The method comprises first eliminating the influence of the cross-axial components of the drill string magnetization by taking magnetometer readings at various angular orientations of the drill string and then eliminating the influence of the axial component of the drill string magnetization.
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