Measuring and testing – Borehole or drilling – Downhole test
Patent
1977-03-10
1978-10-17
Goldstein, Herbert
Measuring and testing
Borehole or drilling
Downhole test
E21B 4700
Patent
active
041201990
ABSTRACT:
A method for indicating the proximity of a hydrocarbon reservoir by measurements of thermal gradients in dry holes. Due to the lower thermal conductivity of hydrocarbon-containing rock, the thermal gradients within such rock are abnormally high when compared to normal subsurface thermal gradients and the anomaly extends well beyond the boundaries of the reservoir. Geothermal gradients are measured along the entire length of deep boreholes, which have proved to be dry, or in shallow test boreholes. A comparison of the shape of such gradient curves to theoretical curves indicates the presence of a hydrocarbon deposit spaced laterally from a deep dry hole or below a shallow surface test hole.
REFERENCES:
patent: 1901431 (1933-03-01), Bond
patent: 2301326 (1942-11-01), Reistle
patent: 2403704 (1946-07-01), Blau
Goldstein Herbert
McIlroy Arthur
Metrailer Albert C.
Standard Oil Company (Indiana)
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