Borehole navigation system

Details Borehole navigation system Borehole navigation system

2005-05-24

2005-05-24

Fulton, Christopher W. (Department: 2859)

Geometrical instruments

Indicator of direction of force traversing natural media

Borehole direction or inclination

C033S321000, C033S366130

Reexamination Certificate

active

06895678

ABSTRACT:
An omnidirectional borehole navigation system is provided which features a housing for traversing a borehole; a gimbal system including at least one outer gimbal connected to the housing and at least one inner gimbal nested in and connected to the outer gimbal; a solid state three-axis gyro assembly mounted on the inner gimbal; a solid state three-axis accelerometer assembly mounted on the inner gimbal; gyro logic circuits on the inner gimbal responsive to the three-axis gyro assembly to produce the inertial angular rate about each gyro input axis; accelerometer logic circuits on the inner gimbal to produce the non-gravitational acceleration along each accelerometer input axis; and a microprocessor responsive to the gyro logic circuits and the accelerometer logic circuits for determining the attitude and the position and velocity of the housing in its borehole.

REFERENCES:
patent: 3079696 (1963-03-01), van Rooyen
patent: 3883788 (1975-05-01), Storey, Jr.
patent: 4052654 (1977-10-01), Kramer et al.
patent: 4071959 (1978-02-01), Russell et al.
patent: 4454756 (1984-06-01), Sharp et al.
patent: 4537067 (1985-08-01), Sharp et al.
patent: 4594790 (1986-06-01), Engebretson
patent: 4696112 (1987-09-01), Hoffman
patent: 4756088 (1988-07-01), Russell et al.
patent: 4987684 (1991-01-01), Andreas et al.
patent: 5126812 (1992-06-01), Greiff
patent: 5156056 (1992-10-01), Pittman et al.
patent: 5349855 (1994-09-01), Bernstein et al.
patent: 5396326 (1995-03-01), Knobbe et al.
patent: 5432699 (1995-07-01), Hache et al.
patent: 5657547 (1997-08-01), Uttecht et al.
patent: 5806195 (1998-09-01), Uttecht et al.
patent: 6216804 (2001-04-01), Aumann et al.
patent: 6267185 (2001-07-01), Mougel et al.
patent: 6347282 (2002-02-01), Estes et al.
patent: 6548321 (2003-04-01), Sawyer
patent: 6778908 (2004-08-01), Ash et al.
patent: WO 03031912 (2003-04-01), None
US 6,151,553, 11/2000, Estes et al. (withdrawn)

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