Wireline stabilization method and apparatus

Details Wireline stabilization method and apparatus Wireline stabilization method and apparatus

1979-02-22

1981-02-24

Novosad, Stephen J.

Wells

Processes

With indicating, testing, measuring or locating

166 64, 166362, 254270, B66D 150, E21B 4700

Patent

active

042521904

ABSTRACT:
Downhole variations in wireline cable tension are substantially reduced for offshore exploration by means of an auxiliary cable tensioning system preferably installed at the ocean floor wellhead. Part of the lifting force applied to a wireline cable is provided by the wireline stabilization tool at the wellhead so that fluctuations in wireline tension above the wellhead caused by ocean disturbances on the floating platform will be effectively filtered out and isolated from the main cable downhole from the wellhead. This downhole isolation is achieved with a moving wireline as well as with a stationary cable.

REFERENCES:
patent: 3001396 (1961-09-01), Cleveland
patent: 3276746 (1966-10-01), Berne
patent: 3380714 (1968-04-01), Martin
patent: 3462125 (1969-08-01), Gollwitzer et al.
patent: 3650323 (1972-03-01), Kanady

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