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:
Nov. 02, 1999
Filed:
May. 28, 1997
Applicant:
Inventors:
Dan T Mueller, Cypress, TX (US);
Daniel J Daulton, Southlake, TX (US);
Phillip J Rae, Singapore, SG;
Neil Johnston, West Hill, GB;
Gino DiLullo, Caracas, VE;
Assignee:
BJ Services Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; E21B / ;
U.S. Cl.
CPC ...
175 65 ; 507110 ; 507211 ; 507925 ;
Abstract
A drilling fluid additive for controlling solids comprising a carrageenan material, such as iota or kappa carrageenan. The drilling fluid additive may be used with other additives, such as a polyacrylate dispersant. Among other things, the drilling fluid additive may be used to drill deviated or horizontal wells, or wells having large diameter boreholes.