Method for performing step rate tests on injection wells

Details Method for performing step rate tests on injection wells Method for performing step rate tests on injection wells

1978-11-16

1980-03-11

Myracle, Jerry W.

Measuring and testing

Borehole or drilling

Downhole test

166271, E21B 4706

Patent

active

041921828

ABSTRACT:
Method for performing step rate tests on injection wells, including inserting a portable pumping unit to receive the water or other fluid normally injected into the well and controlling its pressure, and then increasing the pressure of the injection fluid to a predetermined pressure by use of the portable pumping unit to determine fluid flow at said predetermined pressure, the fluid at the predetermined pressure being pumped continuously until a stable flow rate is achieved. The procedure is repeated for plural stepwisely increased pressure points at each side of the fracture pressure, whereby the fracture pressure is accurately determined.

REFERENCES:
patent: 3338095 (1967-08-01), Johnson et al.
patent: 3636762 (1972-01-01), Kuo etal.

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