The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 1985
Filed:
Jul. 06, 1982
Bernard J Glotin, Saint Maur, FR;
Schlumberger Technology Corporation, New York, NY (US);
Abstract
This invention relates to equipment which is installed in oil wells and more particularly to a tool control apparatus for a tool placed in the production string of a well. This apparatus is lowered into the well at the end of a cable (116). It comprises a first mechanism (134-148-152-154) for transforming a longitudinal reciprocating movement into an alternating rotary movement, the longitudinal movement being obtained by pulling on the cable (116), and a second mechanism (156) forming part of the first, for transforming the alternating rotary movement into a one-directional rotary movement. The invention also relates to an apparatus for closing the production string of a well, characterized in that it includes the closing apparatus or plug involved. Application to oil well production tests.