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:
Sep. 10, 1991
Filed:
Apr. 30, 1990
Applicant:
Inventor:
Phillip H Manderscheid, Cypress, TX (US);
Assignee:
MASX Energy Services Group, Inc., Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166120 ; 166134 ; 166179 ;
Abstract
A retrievable well packing tool suitable for high pressure environments which is hydraulically set within a well bore and thereafter mechanically released. The packer includes a pressure compensator which enhances the setting force, maintains a continual setting force during well operations, and equalizes differential pressures during release. Dual slips are provided to ensure rigid anchoring of the packer to the casing wall. The short, compact design of the packing tool facilitates running through the casing while reducing manufacturing costs. Inadvertent presetting of the packer is presented by positively locking all components.