Method and apparatus for determining the point at which pipe is

Details Method and apparatus for determining the point at which pipe is Method and apparatus for determining the point at which pipe is

1978-11-14

1980-06-17

Myracle, Jerry W.

Measuring and testing

Borehole or drilling

Downhole test

E21B 4700

Patent

active

042077656

ABSTRACT:
A method and apparatus for determining the location at which a string of pipe is stuck in a well bore. The apparatus has two relatively movable sections and an electrical sensing device for determining relative movement of the two sections which produces a signal representing the movement. The electrical sensing device has a wiper arm adapted to be displaced with a longitudinal deformation of the pipe string and with angular deformation of the pipe string.

REFERENCES:
patent: 2530309 (1950-11-01), Martin
patent: 2534632 (1950-12-01), Smith
patent: 2851880 (1958-09-01), Fiedler
patent: 3670566 (1972-06-01), Basham et al.
patent: 3762218 (1973-10-01), Davis
patent: 3934466 (1976-01-01), Curry
patent: 4105071 (1978-08-01), Nicolas et al.

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