System, method, and apparatus for survey tool having roller...

Details System, method, and apparatus for survey tool having roller... System, method, and apparatus for survey tool having roller...

2007-03-13

2007-03-13

Thompson, Kenneth (Department: 3672)

Wells

Processes

With indicating, testing, measuring or locating

C166S050000, C166S066000, C166S241500, C166S241600

Reexamination Certificate

active

10958459

ABSTRACT:
A highly flexible, wireline survey tool has roller knuckle joints that enable the survey tool string to penetrate and survey horizontal wells having inclinations of about 80° and more from vertical. The survey tool string includes a nose, roller stems, roller knuckle joints, and a highly accurate electronic gauge embedded in a roller cage. Each component has external wheels that are free to contact and roll when they make contact with the inner surfaces of the well. The wheels act as both friction-reducing elements and stand-offs for the survey tool string with respect to the inner surfaces of the well.

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“Production Knuckle Joint—Ball Type”, SONDEX Wireline Ltd., Ver 2.0, Nov. 19, 2003, Printed Nov. 19, 2003, www.sondex.co.uk, email: sondex@sondex.co.uk.

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