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:
Apr. 12, 1977
Filed:
Jul. 18, 1975
Applicant:
Inventor:
LeRoy W Holm, Fullerton, CA (US);
Assignee:
Union Oil Company of California, Brea, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; C09K / ;
U.S. Cl.
CPC ...
252 / ; 166274 ; 166275 ;
Abstract
A soluble oil comprising an admixture of a liquid hydrocarbon, surface active alkyl aryl sulfonates, an organic stabilizing agent, and an alkali metal or ammonium salt of a sulfated alkyl primary alcohol ethoxylate having 12 to 16 carbon atoms in the alkyl group. The preferred ethoxylate is a sulfated surfactant containing an admixture of an alkali metal or ammonium lauryl polyethoxy sulfate having 2 to 6 ethoxy groups and an amide builder. The soluble oil can be substantially anhydrous, or it can contain water present in the form of a water-in-oil microemulsion.