G - Physics – 01 – V
Patent
G - Physics
01
V
G01V 1/36 (2006.01) E21B 44/00 (2006.01) E21B 47/08 (2006.01) G01V 5/08 (2006.01) G01V 5/12 (2006.01)
Patent
CA 2307444
A system is disclosed for compensating well logs for adverse effects of the borehole and near borehole formation effects. The system is configured primarily for processing logging-while-drilling (LWD) density measurements, and includes means for generating a one-dimensional density log which is corrected for adverse effects of logging tool standoff and "dipping" beds penetrated by the borehole. The system is, however, applicable to any type of LWD or other type of logging system which requires borehole corrections, and which responds to variations in formation properties in a plane perpendicular to the borehole. The system can also be modified to include LWD apparatus using sensors that require no borehole corrections, and only require corrections for dipping beds. The system is ideally suited for logging equipment using two sensors, but can be modified for use with single sensor systems or systems using more than two sensors.
Adolph Robert A.
Edwards John E.
Sloan William R.
Schlumberger Canada Limited
Smart & Biggar
LandOfFree
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