Geometrical instruments – Indicator of direction of force traversing natural media – Borehole direction or inclination
Patent
1993-11-19
1995-09-26
Fulton, Christopher W.
Geometrical instruments
Indicator of direction of force traversing natural media
Borehole direction or inclination
33301, 33313, E21B 47022
Patent
active
054525187
ABSTRACT:
A method is provided for deriving wellbore azimuth in a manner which reduces the impact of axial magnetic field errors, which utilizes a plurality of estimates of the axial component of the magnetic field which are combined in a manner which emphasizes the better estimates and deemphasizes the poorer estimates.
REFERENCES:
patent: Re33708 (1991-10-01), Roesler
patent: 2593070 (1952-04-01), Stuart, Jr.
patent: 3587175 (1971-06-01), Armistead
patent: 3753296 (1973-08-01), Van Steenwyk
patent: 3791043 (1974-02-01), Russell
patent: 3862499 (1975-01-01), Isham et al.
patent: 3896412 (1975-07-01), Rohr
patent: 3935642 (1976-02-01), Russell
patent: 4021774 (1977-05-01), Asmundsson et al.
patent: 4071959 (1978-02-01), Russell et al.
patent: 4083117 (1978-04-01), Russell et al.
patent: 4163324 (1979-08-01), Russell et al.
patent: 4174577 (1979-11-01), Lewis
patent: 4199869 (1980-04-01), Van Steenwyk
patent: 4345454 (1982-08-01), Brown
patent: 4414753 (1983-11-01), Moulin et al.
patent: 4433491 (1984-02-01), Ott et al.
patent: 4472884 (1984-09-01), Engebretson
patent: 4510696 (1985-04-01), Roesler
patent: 4559713 (1985-12-01), Ott et al.
patent: 4637480 (1987-01-01), Obrecht et al.
patent: 4649349 (1987-03-01), Chiron et al.
patent: 4682421 (1987-07-01), Van Dongen et al.
patent: 4709486 (1987-12-01), Walters
patent: 4761889 (1988-08-01), Cobern et al.
patent: 4813214 (1989-03-01), Barnard et al.
patent: 4813274 (1989-03-01), DiPersio et al.
patent: 4819336 (1989-04-01), Russell
patent: 4836301 (1989-06-01), Van Dongen et al.
patent: 4875014 (1989-10-01), Roberts et al.
patent: 4894923 (1990-01-01), Cobern et al.
patent: 4956921 (1990-09-01), Coles
patent: 4999920 (1991-03-01), Russell et al.
patent: 5012412 (1991-04-01), Helm
patent: 5034929 (1991-07-01), Cobern et al.
patent: 5103177 (1992-04-01), Russell et al.
patent: 5155916 (1992-10-01), Engebretson
patent: 5321893 (1994-06-01), Engebretson
Encyclopedia Britannica, "Geomagnetism", vol. 10, 1960, p. 171.
Composite Catalog of Oil Field Equipment and Services, vol. 3, 1974-1975.
Alfred Hine, B.Sc., "Magnetic Compasses and Magnetometers", 1968, pp. 1-7, 105-107.
A. C. Scott, et al, "Determining Downhole Magnetic Interference on Directional Surveys," Society of Petroleum Engineers, 1979.
C. J. M. Wolf, et al, "Borehole Position Uncertainty-Analysis of Measuring Methods and Derivation of Systematic Error Model", Journal of Petroleum Technology, Dec., 1981, pp. 2339-2350.
J. Edwards F. Pernet, et al, "Magnetic Properties of Nonmagnetic Drill Collars and Their Relation to Survey Compass Error", Geoexploration, 1979, pp. 229-241.
T. G. Thometz, "Determining Non-Magnetic Survey Collar Requirements", World Oil, vol. 182, No. 6, May 1976, pp. 79-80.
B. J. S. Deo, "An Analysis of the Angels of Rotation and Azimuth Using M. W. D.", Gearhart Geodata Services, Ltd. (Date Unknown).
C. A. Johancsik, et al, "Application of Measurement While Drilling in a Shallow, Highly Deviated Drilling Program", Science and Technology, Jun. 1984, pp. 521-531.
Baker Hughes Incorporated
Fulton Christopher W.
Hunn Melvin A.
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