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:
Nov. 11, 2014
Filed:
Nov. 03, 2009
Applicants:
Eugene Dakin, Langdon, CA;
Chris Shepherd, Katy, TX (US);
Steven Young, Cypress, TX (US);
Inventors:
Assignee:
M-1 L.L.C., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 37/06 (2006.01); C09K 8/52 (2006.01); C09K 8/524 (2006.01); C09K 8/34 (2006.01);
U.S. Cl.
CPC ...
C09K 8/524 (2013.01); C09K 8/34 (2013.01); C09K 2208/26 (2013.01);
Abstract
A method of cleaning a wellbore drilled with an oil-based drilling fluid that forms an oil-based filter cake may include: emplacing a breaker fluid into the wellbore, the breaker fluid comprising: a water-miscible non-aqueous fluid; at least one weighting salt; and at least one breaking agent; and shutting in the well for a period of time sufficient to initiate breaking of the oil-based filter cake.