Method of freeing a hollow tubular member

Details Method of freeing a hollow tubular member Method of freeing a hollow tubular member

1983-04-22

1984-05-15

Leppink, James A.

Wells

Processes

With indicating, testing, measuring or locating

166301, E21B 3100, E21B 4706

Patent

active

044482507

ABSTRACT:
A hollow tubular member, such as a drill string member (15, 16), stuck by differential pressure against the side wall of a wellbore (10), is released by measuring (21) the temperature distribution around the circumference of the member, determining from this measurement the side which is stuck (17), and then perforating (22) the member at the stuck side to flow fluid into the formation and equalize the pressure behind the stuck portion of the member.

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"Radial Differential Temperature (RDT) Logging-A New Tool for Detecting and Treating Flow Behind Casing", by Cooke, Jr., SPE paper 7558, Oct. 1978.

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