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:
Mar. 28, 1989
Filed:
Mar. 20, 1987
Harris A Oehler, Houston, TX (US);
Henry C McLaurine, Katy, TX (US);
Charles K Grantham, Houston, TX (US);
MI Drilling Fluids Company, Houston, TX (US);
Abstract
By the use of small amounts of novel amide resin reaction products of dibasic dimerized or trimerized fatty acids, an alkanolamine and a polyalkylene polyamine, improved drilling mud formulations are obtained. In those oil mud drilling formulations that contain organophilic clays, one is able to maximize the viscosity and gelation of the formulations, resulting in less preparation time and less material usage, especially the clay. In accordance with the invention, one is able to thicken or gel oil-mud systems at usual operating temperatures even when using low viscosity/low aromatic oils as the external phase, and to maximize the yield of organophilic clays readily in a short period of time, at low shear rates. The amide resin extends the utility of organophilic clays in low viscosity oil-mud systems. They produce more shear thinning fluids, higher yield points and quicker gel strengths while maintianing low plastic viscosities.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile