Method of locating hydrocarbon producing strata and the instrume

Details Method of locating hydrocarbon producing strata and the instrume Method of locating hydrocarbon producing strata and the instrume

1988-02-01

1989-02-21

Levy, Stewart J.

Measuring and testing

Borehole or drilling

Downhole test

436 27, 436 28, 7386105, E21B 4900

Patent

active

048054500

ABSTRACT:
A cylinder is mounted to descend a borehole for purposes of measuring the mass flow rate of gas flowing upward in the borehole. Within the cylinder is a source of tracer gas which is ejected at a constant mass flow rate [05] from near the lower end of the cylinder. A tracer gas concentration measuring means near the top of the cylinder will measure the degree of concentration of the tracer gas and thereby provide a measurement of the mass flow rate of other gases flowing upwardly around the cylinder.

REFERENCES:
patent: 3303699 (1967-02-01), Scott
patent: 4107525 (1978-08-01), Hart, Jr.
patent: 4153418 (1979-05-01), Haas
patent: 4178919 (1979-12-01), Hall
patent: 4197456 (1980-04-01), Fleisher et al.
patent: 4532812 (1985-08-01), Birchak
patent: 4635468 (1987-01-01), Hickam et al.

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