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. 01, 1991
Filed:
Nov. 12, 1989
Steven P Rines, Houston, TX (US);
M-I Drilling Fluids Company, Houston, TX (US);
Abstract
An improved oil-base drilling fluid comprising a continuous oil phase and a dispersed internal phase using aqueous non-halide salt solutions is described. Preferably, the non-halide salt is potassium acetate, calcium acetate, sodium proprionate or combinations thereof, however, citrate, tartrate, or gluconate salts may also be used. Emulsifiers, wetting agents, and other chemicals may be added in varying concentrations to achieve desired characteristics for the drilling fluid. The composition has suitable rheological properties, stability, and hole cleaning abilities for use as a drilling fluid; and it is more compatible with environmentally acceptable land disposal methods than conventional oil-base drilling fluids used in land drilling applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile