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:
Dec. 01, 1992
Filed:
Aug. 07, 1990
Pierre Goldschild, Vulaines sur Seine, FR;
Schlumberger Technology Corporation, Houston, TX (US);
Abstract
Apparatus for testing an oil well comprises a tubular test string (10) fixed at the bottom of production tubing (11) and including a ball test valve (14) at its bottom end. The apparatus also includes a wireline assembly (50) suspended from a cable (51) so as to be capable of being lowered down the tubing. Beneath a measurement device (53) the wireline assembly includes a housing suitable for engaging in the test string (10), and an actuator rod suitable for engaging a moving sleeve (34) mounted in the tubular test string. By exerting traction on the cable (51) the sleeve (34) is raised, thereby opening a distributor valve (52) received in the thickness of the wall of the test string (10), and thereby putting the fluid situated beneath the test valve (14) into communication with the measurement device (53) via a passage (20).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile