Logging tool retrieval system

Details Logging tool retrieval system Logging tool retrieval system

1998-02-06

1999-11-16

Neuder, William

Wells

Processes

With indicating, testing, measuring or locating

166 98, 166301, 7315256, E21B 3300

Patent

active

059840099

ABSTRACT:
An apparatus as method for identifying, locating, and retrieving a downhole tool from a borehole. A controller is lowered into the borehole and is capable of detecting a signal from the tool. The signal can be broadcast from the tool, can be generated in response to a signal from the controller, or can be reflected from a controller signal. The controller processes the signal to identify the location and heading of the controller from the tool, and to guide the controller toward the tool. When the controller is moved proximate to the tool, a catch mechanism can be activated to connect the tool and controller housing. The tool is then dislodged for further operation, or is retrieved to the borehole surface.

REFERENCES:
patent: 3637038 (1972-01-01), Tanner
patent: 5477921 (1995-12-01), Tollefsen
patent: 5520245 (1996-05-01), Estes

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