Geometrical instruments – Indicator of direction of force traversing natural media – Process
Patent
1981-03-09
1984-09-18
Martin, Jr., William D.
Geometrical instruments
Indicator of direction of force traversing natural media
Process
G01C 900
Patent
active
044715331
ABSTRACT:
Bore-hole mapping, or surveying, or tool steering in a bore-hole is accomplished using selected combinations of sensors, with sensor signal compensation being provided, in the hole or at the surface. Typical sensors include an angular rate sensor or sensors, a linear acceleration sensor or sensors, and an angular acceleration sensor or sensors. The sensor group is typically rotated in the bore-hole, and the sensors may have selected sensitive axis angularity relative to the travel axis in the bore-hole.
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Ott Paul W.
Van Steenwyk Donald H.
Applied Technologies Associates
Haefliger William W.
Martin, Jr. William D.
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