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:
Feb. 16, 1999
Filed:
Jan. 17, 1997
Applicant:
Inventor:
Jay S Mann, Sherwood Park, CA;
Assignee:
Camco International, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166377 ; 166105 ; 417360 ;
Abstract
A method and related apparatus for the retrieval of a rotary pump from a wellbore while leaving the pump's drive mechanism within the wellbore, comprises lowering a latch mechanism into a wellbore by a cable or coiled tubing and connecting the latch mechanism to the rotary pump suspended within the wellbore. Holding mechanisms, which removably connect the rotary pump to the pump's drive mechanism, are disengaged by pulling of the cable or coiled tubing, or by the application of hydraulic pressure. The latch mechanism and the pump are then retrieved from the wellbore, while the drive mechanism remains suspended within the wellbore.