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.

Date of Patent:
Jun. 14, 1994

Filed:

May. 06, 1992
Applicant:
Inventors:

Michael J Naquin, Kingwood, TX (US);

Phillip W Schmuck, Houston, TX (US);

Assignee:

Baker Hughes Incorporated, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166386 ; 166181 ; 166192 ; 166237 ;
Abstract

A well servicing assembly utilizes a plug mechanism for preventing fluid loss into a formation. The assembly includes a string of tubing which carries a packer, a perforating gun, a running tool, and a latch assembly. After perforating, the operator pulls the tubing upward, leaving the packer in place. The latch assembly engages the packer. The latch assembly has a plug contained therein which prevents downward flow of fluid through the packer as the tubing string is retrieved to the surface. After removing the perforating gun, the tubing string may be again lowered and re-engaged with the latch assembly. The latch assembly may be then repositioned below the packer.


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