isochronal test

isochronal test

[ī′sä·krən·əl ′test]
(petroleum engineering)
Short-time back-pressure test for low-permeability reservoirs that otherwise require excessively long times for pressure stabilization when wells are shut in.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
A 4-Point Isochronal test achieved stabilized flow rates of approximately 14 million cubic feet per day (~2,333 BOE per day) on a 48/64” choke, with associated condensate production increasing during testing.
TAG's Cheal-C1, Cheal-C2 and Cheal-A8 Flow Testing Confirm Significant Oil and Gas Discoveries
A 4-Point Isochronal test achieved stabilized flow rates of 6.98 million cubic feet per day (~1163 BOE per day) with a 25% drawdown.
Strong Flow Test Results for TAG Oil's Sidewinder-4 Well, Sidewinder-2 Flow Testing Underway
A 4-Point Isochronal test on the Sidewinder-3 discovery well achieved a stabilized flow rate of 7.2 million cubic feet per day (1200 BOE per day) with less than a 50% drawdown.
TAG Reports Strong Flow Test at Sidewinder-3 Discovery, and On-Track to Produce First Commercial Oil and Gas from Sidewinder Discoveries
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