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:
Sep. 24, 1996
Filed:
May. 17, 1994
Applicant:
Inventor:
William M Duncan, Jr, Corpus Christi, TX (US);
Assignee:
Integrity Industries, Inc., Kingsville, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
507103 ; 507136 ; 507137 ; 507138 ;
Abstract
A drilling fluid comprises a continuous phase of diesel oil, mineral oil, ester, mono-ether, di-ether, poly-alpha-olefin, detergent alkylate, terpene and mixtures thereof. Water is added to make an inverted emulsion. In the non-terpene based drilling fluids, terpene or terpenes is added in the amount of 1-80% by volume to increase the penetration rate and provide other advantages, such as rapid biodegradability. The terpene may be of the unsaturated type or the saturated type.