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:
Jun. 19, 2018
Filed:
Jul. 29, 2016
Applicant:
M-i L.l.c., Houston, TX (US);
Inventors:
Chemsseddine Bouguetta, Houston, TX (US);
Roger Wayne Matlock, Lafayette, LA (US);
Henry Lee Conn, Houston, TX (US);
Robert Bailey, Houston, TX (US);
James Friedheim, Spring, TX (US);
Assignee:
M-I L.L.C., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/03 (2006.01); E21B 21/08 (2006.01);
U.S. Cl.
CPC ...
C09K 8/032 (2013.01); E21B 21/08 (2013.01);
Abstract
A method of drilling a subterranean well may include drilling the subterranean well while circulating a wellbore fluid in the subterranean well, wherein the wellbore fluid includes a base fluid; and a ground weight material comprising barite and quartz and having a dbetween about 4 and 8 microns and a dbetween about 15-25 microns.