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:
Feb. 01, 1994
Filed:
Mar. 17, 1992
James H Bush, Mentor, OH (US);
Richard W Jahnke, Mentor, OH (US);
Lawrence J Kocurek, Willowick, OH (US);
The Lubrizol Corporation, Wickliffe, OH (US);
Abstract
This invention relates to a composition comprising a mixture of a brine and a liquid hydrocarbon, and (A) a viscosity increasing amount of at least one ester of a carboxy-containing interpolymer or salt thereof wherein the interpolymer is prepared by polymerizing an olefin selected from the group consisting of alpha-olefins and vinyl aromatic monomers with at least one alpha, beta-unsaturated carboxylic acylating agent, and provided that when the olefin is vinyl toluene, then the alpha, beta-unsaturated carboxylic acylating agent is an alpha, beta-unsaturated dicarboxylic acylating agent. The compositions of the present invention are useful as drilling fluids as well as completion fluids. The esters of the carboxy-containing interpolymer or salts thereof provide beneficial viscosity, formation stabilization, emulsification and rheology properties to the fluids.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile