Radiant energy – Geological testing or irradiation – Well testing apparatus and methods
Patent
1997-04-11
1998-12-08
Westin, Edward P.
Radiant energy
Geological testing or irradiation
Well testing apparatus and methods
250266, G01V 512
Patent
active
058473840
ABSTRACT:
A method for determining a profile of a wall of a wellbore drilled through earth formations. The earth formations are irradiated by a source of gamma rays. Scattered gamma rays are detected at axially spaced apart locations from the source. At least one of the axially spaced apart locations is positioned on an opposite side of the source from the other ones of the spaced apart locations. A function, related to a rate of detecting the scattered gamma rays at a first one of the spaced apart locations with respect the rate of detecting scattered gamma rays at the at least one spaced apart location positioned on the opposite side of the source is calculated. Density of the earth formations, density of the fluid in the wellbore, and a difference between the densities is determined. An area bounded by the function is determined. The area is scaled with respect to the difference between the densities, and the profile is calculated from the scaled area bounded by the function.
REFERENCES:
patent: 5390115 (1995-02-01), Case et al.
patent: 5659169 (1997-08-01), Michael et al.
Fagin Richard A.
Hanig Richard
Western Atlas International Inc.
Westin Edward P.
LandOfFree
Method for determining irregularities in a wellbore wall using a does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for determining irregularities in a wellbore wall using a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for determining irregularities in a wellbore wall using a will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-180405