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.

Date of Patent:
Oct. 01, 2002

Filed:

Dec. 27, 2000
Applicant:
Inventors:

Thomas C. Adams, Hockley, TX (US);

David W. Largent, Cleveland, TX (US);

David L. Schulte, Broussard, LA (US);

Assignee:

Varco I/P, Inc., Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B07B 1/49 ; B01B 3/908 ; B01B 3/910 ; E21B 2/106 ;
U.S. Cl.
CPC ...
B07B 1/49 ; B01B 3/908 ; B01B 3/910 ; E21B 2/106 ;
Abstract

A method for separating fluid and fibrous lost circulation material from a mixture thereof that also includes drilled cuttings, the method including introducing the mixture onto a screen assembly that is vibrating for passage of the fluid and fibrous lost circulation material through the screen assembly and for separation of the driled cuttings from the fluid, the screen assembly with a plurality of screens one on top of the other and including at least a first screen and a second screen, one of the screens with a screen mesh with non-square openings as viewed from above to facilitate the passage of fibrous lost circulation material through the screen assembly.


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