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:
May. 05, 1987
Filed:
Feb. 17, 1986
Applicant:
Inventors:
William G Ford, Duncan, OK (US);
Keith H Hollenbeak, Duncan, OK (US);
Assignee:
Halliburton Company, Duncan, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
252 / ; 166307 ;
Abstract
An anti-sludging agent for enhancing the recovery of sludging oil crudes from hydrocarbon-bearing formations during acid stimulation treatments comprising an admixture of dicyclopentadiene and a mixture of naturally occurring cyclic monoterpenes isolated from Pinus species which is added in at least a sludge-inhibiting amount to the acid used for stimulation.