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:
Feb. 19, 2008
Filed:
May. 10, 2004
Roger Keese, Greenwood Village, CO (US);
Trevor Munk, La Defense, FR;
Raafat Abbas, Abu Dhabi, UA;
Erik Nelson, Sugar Land, TX (US);
Benoit Vidick, Rosharon, TX (US);
Roger Keese, Greenwood Village, CO (US);
Trevor Munk, La Defense, FR;
Raafat Abbas, Abu Dhabi, UA;
Erik Nelson, Sugar Land, TX (US);
Benoit Vidick, Rosharon, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A method of preventing or treating lost circulation during the drilling of a well comprises the addition, at concentration ranging between about 0.5 and 6 pounds per barrel, of water-dispersible fibers having a length between about 10 and 25 mm, for instance glass or polymer fibers, to a pumped aqueous base-fluid including solid particles having an equivalent diameter of less than 300 μm The base-fluid with the solid particles can be the drilling fluid or a small-volume pill specially pumped for curing lost circulation.