Positive engagement indicator for wireline fishing operations

Details Positive engagement indicator for wireline fishing operations Positive engagement indicator for wireline fishing operations

2007-07-24

2007-07-24

Bagnell, David (Department: 3672)

Wells

Processes

With indicating, testing, measuring or locating

C166S301000, C166S113000, C294S086260

Reexamination Certificate

active

10863093

ABSTRACT:
A device and method for retrieving a tool string from downhole locations through the use of one or more engagement sensors. The one or more engagement sensors are activated by the tool string engaging an overshot device. The one or more engagement sensor may be mechanical, electric, or magnetic and may be located at various locations on the overshot device, the tool string, or both. Additionally, any number of engagement sensors may be used at the same time.

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