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:
Aug. 04, 2009
Filed:
Dec. 11, 2007
Applicants:
Thomas Robert Larson, Montgomery, TX (US);
Eric Simon Provost, Magnolia, TX (US);
Inventors:
Thomas Robert Larson, Montgomery, TX (US);
Eric Simon Provost, Magnolia, TX (US);
Assignee:
National Oilwell Varco LP, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 21/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system for recovering lost circulation material from spent drilling fluid, the spent drilling fluid containing lost circulation material, drilling fluid, and undesirable solids, the system having alternating separation apparatuses, including sizing apparatus, destiny/shear separation apparatus, and sizing apparatus; and methods for using such a system.