Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science
Patent
1997-10-02
1999-11-16
McElheny, Jr., Donald E.
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Earth science
G06F 1900
Patent
active
059873868
ABSTRACT:
A method for estimating the apparent conductivity of a formation comprises the steps of: providing layer conductivity data over a range of points in the formation outside the borehole along a portion of a borehole, calculating an apparent conductivity at a first series of points in the range, calculating a Doll-generated conductivity at each of the first points, calculating a skin effect by calculating a difference value between the Doll-generated conductivity and the apparent conductivity at each of the first points, calculating a Doll-generated conductivity at a second series of points that are different from the first points, calculating an interpolated difference value for each of the second points, and adding to interpolated difference value to the corresponding Doll-generated conductivity at each of the second points. Alternatively, the skin effect can be calculated at each of the first points by calculating the ratio of the apparent conductivity to the Doll-generated conductivity at each of the first points. The interpolation steps can be either linear interpolation or geometric interpolation.
REFERENCES:
H.G. Doll; Petroleum Transactions, AIME, Introduction to Induction Logging and Application to Logging of Wells Drilled with Oil Base Mud; V. 1, No. 6, Jun. (pp. 14-1-14-15).
J.H. Morani; K. S. Kunz; Basic Theory of Induction Logging and Application to Study of Two-Coil Sondes; Geophysics, V. 27, No. 6, Dec. (pp.16-1-16-30).
G. A. Merchant; Halliburton Logging Services; Modelling Induction Tools in Layered Formation (undated); (pp. 1-9) and Appendix.
Halliburton Energy Service,s Inc.
McElheny Jr. Donald E.
LandOfFree
Interpolation of induction tool response using geometrical facto does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Interpolation of induction tool response using geometrical facto, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interpolation of induction tool response using geometrical facto will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1336811