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:
Jul. 13, 1999
Filed:
Oct. 03, 1996
Applicant:
Inventors:
Iqbal Ahmed, Bartlesville, OK (US);
Ahmad Moradi-Araghi, Bartlesville, OK (US);
Bharat B Patel, Bartlesville, OK (US);
Wayne S Stewart, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ; E21B / ; C08F / ;
U.S. Cl.
CPC ...
507242 ; 526263 ; 526277 ; 526287 ; 526310 ; 526291 ; 507130 ; 166308 ;
Abstract
A composition and a process for using the composition for applications in a subterranean formation are provided. The composition comprises a clay, a polymer, and a liquid. The polymer comprises repeat units derived from a nitrogen-containing olefinic monomer and optionally an olefinic comonomer. The composition can be used as or in drilling fluids, workover fluids, completion fluids, or combinations of any two or more thereof.