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. 13, 2000
Filed:
May. 20, 1998
Applicant:
Inventor:
John Peter Crawshaw, Newmarket, GB;
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166292 ; 166285 ;
Abstract
A method for placing a plug at a predetermined location in a wellbore, the method being based on utilising a supporting fluid solidifying after being subjected to shear forces. After placing the supporting fluid and allowing it to develop sufficient strength, the plug material is injected. A preferred example of the fluid is an emulsion comprising polymer material and crosslinking agent separated by phase boundaries prior to the shearing process.