Method and apparatus for measuring formation conductivities...

Details Method and apparatus for measuring formation conductivities... Method and apparatus for measuring formation conductivities...

2007-09-18

2007-09-18

McElheny, Jr., D. (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Earth science

C324S370000

Reexamination Certificate

active

11586917

ABSTRACT:
A method for determining spatial distribution of resistivity of Earth formations surrounding a wellbore having a conductive pipe therein includes measuring resistivity of the Earth formations using measurements of current leakage along the pipe at selected axial positions. Electromagnetic properties of the Earth formations are measured from within the pipe. The measurements of electromagnetic properties correspond to a larger axial distance and to a greater lateral distance than the measurements of resistivity from current leakage. The current leakage and electromagnetic measurements are jointly inverted to obtain a model of the spatial distribution.

REFERENCES:
patent: 5608323 (1997-03-01), Koelman
patent: 6541975 (2003-04-01), Strack

Affiliated with

Also associated with

Rating

Method and apparatus for measuring formation conductivities... 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 and apparatus for measuring formation conductivities..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for measuring formation conductivities... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3786432