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. 22, 1999
Filed:
Apr. 08, 1997
Applicant:
Inventor:
David Wade Bryant, Abita Springs, LA (US);
Assignee:
Mobil Oil Corporation, Fairfax, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166311 ; 166222 ; 166312 ; 166387 ;
Abstract
A method for removing a gravel-pack screen from a wellbore. of a well which has been 'gravel packed'. When it is desired to remove the screen from the wellbore, a washstring is lowered down the wellbore and into the interior of said screen. A wash fluid is then flowed fluid down the washstring and out through said screen into said mass of gravel surrounding the screen to fluidize, loosen, and remove said gravel. Once the mass of gravel has been loosen, the screen can then lifted upward out of said wellbore by applying a normal upward force the workstring which suspends the screen within the well.