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. 16, 1997
Filed:
Jan. 16, 1996
Applicant:
Inventors:
Kristian Harestad, Randaberg, NO;
Thor-Peter Herigstad, Bryne, NO;
Assignee:
BJ Services Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ; E21B / ;
U.S. Cl.
CPC ...
166383 ; 166153 ; 166285 ; 166386 ;
Abstract
A well barrier for separating two liquids in a gas or oil well. The well barrier includes opposing sets of laths which project slantingly away from a centrally positioned fixing device. A set of upper and lower canvas materials may be affixed to each of the sets of laths to provide enhanced sealing effect. Preferably, the laths are also positioned in an overlapping relationship to thereby minimize the overall length of the well barrier while also maintaining the required functionality.