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. 27, 2016
Filed:
Aug. 11, 2009
Applicant:
Qinglin Wu, Baton Rouge, LA (US);
Inventor:
Qinglin Wu, Baton Rouge, LA (US);
Assignee:
Board of Supervisors of Louisiana State University And Agricultural and Mechanical College, Baton Rouge, LA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/035 (2006.01); C09K 8/487 (2006.01); C09K 8/40 (2006.01); C09K 8/58 (2006.01); C09K 8/50 (2006.01); C04B 18/02 (2006.01); C09K 8/514 (2006.01); C09K 8/516 (2006.01); C04B 103/46 (2006.01);
U.S. Cl.
CPC ...
C09K 8/501 (2013.01); C04B 18/022 (2013.01); C09K 8/035 (2013.01); C09K 8/487 (2013.01); C09K 8/514 (2013.01); C09K 8/516 (2013.01); C04B 2103/46 (2013.01); C09K 2208/08 (2013.01); C09K 2208/18 (2013.01); Y02W 30/97 (2015.05);
Abstract
A method is disclosed for reducing lost circulation in drilling wells, employing composite materials as lost circulation materials. The composites comprise a thermoplastic polymer and cellulosic fibers. Optionally the composites may include other components such as calcium carbonate, clay, oil and other blending agents.