Wells – Processes – With indicating – testing – measuring or locating
Reexamination Certificate
2006-02-21
2006-02-21
Tsay, Frank S. (Department: 3672)
Wells
Processes
With indicating, testing, measuring or locating
C166S250110, C166S066000
Reexamination Certificate
active
07000700
ABSTRACT:
This invention provides a measurement-while-drilling (MWD) downhole assembly for use in drilling boreholes which utilizes directional formation evaluation devices on a rotating assembly in conjunction with toolface orientation sensors. The data from the toolface orientation sensors are analyzed by a processor and toolface angle measurements are determined at defined intervals. Formation evaluation sensors operate substantially independently of the toolface orientation sensors and measurements of the formation evaluation sensors are analyzed in combination with the determined toolface angle to obtain formation parameters.
REFERENCES:
patent: 4542647 (1985-09-01), Molnar
patent: 5091644 (1992-02-01), Minette
patent: 5325714 (1994-07-01), Lende et al.
patent: 5678643 (1997-10-01), Robbins et al.
patent: 5899958 (1999-05-01), Dowell et al.
patent: 6047239 (2000-04-01), Berger et al.
patent: 6088294 (2000-07-01), Leggett, III et al.
patent: 6215120 (2001-04-01), Gadeken et al.
patent: 6307199 (2001-10-01), Edwards et al.
patent: 6347282 (2002-02-01), Estes et al.
patent: 6453239 (2002-09-01), Shirasaka et al.
Bell Samuel R.
Cairns Paul G.
Dehlavi Sassan
Efremov Sergey V.
Estes Robert A.
Baker Hughes Incorporated
Madan Mossman & Sriram P.C.
Tsay Frank S.
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