Method of determining characteristics of a fluid producing under

Measuring and testing – Borehole or drilling – Downhole test

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E21B 4900

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active

043287050

ABSTRACT:
A graphical plot of pressure versus time during pressure build-up in a temporarily closed well is matched to a type-curve on a graph of such curves to determine if the well is fractured, acidified, fissured or damaged.

REFERENCES:
patent: 3636762 (1972-01-01), Kuo et al.
Agarwal, R. G. et al., An Investigation of Wellbore . . . Treatment, Society of Petroleum Engineers Journal, Sep. '70, pp. 279-290.
Earlougher, Jr. R. C. et al. Analysis of Short-Time . . . Matching, from _Journal of Petroleum Technology, Jul. '74, pp. 793-800.
McKinley, R. M. Wellbore Transmissibility . . . Buildup Data, from Journal of Petroleum Technology, Jul. '71, pp. 863-872.

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