Method of defining homogeneous rock formation zones along a bore

Details Method of defining homogeneous rock formation zones along a bore Method of defining homogeneous rock formation zones along a bore

1985-09-24

1987-03-10

Tokar, Michael J.

Measuring and testing

Borehole or drilling

Downhole test

364422, E21B 4900

Patent

active

046482687

ABSTRACT:
A method of defining homogeneous rock formation zones along a borehole on the basis of logs, uses two logs, a lithological log and a log relating to the impregnation fluids. Individual limits of zones are determined by reproducing or reshaping each of the logs in the form of rectangular zones or crenellations, preferably rough crenellations for the first log and smoothed crenellations for the second log, and the individual limits are combined to obtain synthetic limits, some of the individual limits belonging to the first log only preferably being subsequently eliminated when the first log is smoothed.

REFERENCES:
patent: 4440020 (1984-04-01), Boutemy et al.
patent: 4484278 (1984-11-01), Edmundson
Kerzner et al., Blocking-A New Technique for Well-Log Interpretation, Journal of Petroleum Technology, Feb. 1984, pp. 267-275.

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