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:
Jun. 24, 1997
Filed:
Dec. 01, 1995
Applicant:
Inventors:
Gregg W Stout, Montgomery, TX (US);
James T Matte, Broussard, LA (US);
Assignee:
BJ Services Company, U.S.A., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166179 ; 2771 / ;
Abstract
A swab-resistant packer is disclosed which prevents the packing element from expanding outwardly to cause swabbing during tripping of the apparatus in a subterranean well. Preferably, a metallic or other cable or cord is placed immediate and circumferentially around the exterior of the first and second ends of the packing element to prevent the packing element from moving outwardly away from the first, pre-set retracted position to thereby abate any tendency to swab.