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:
Nov. 15, 1977
Filed:
Dec. 03, 1976
Dale K Cabbiness, Ponca City, OK (US);
Continental Oil Company, Ponca City, OK (US);
Abstract
A method for determining the flow characteristics of subterranean petroliferous formations by injecting a tracer and a polysaccharide polymer having glucose moieties into said formation, recovering said tracer and polysaccharide from production well effluent at timed intervals and determining flow characteristics by the rate differential observed of the concentration of each in the effluent. Accurate determination of polysaccharide polymer is obtained by hydrolyzing the polymer to release glucose, reacting the glucose with orthotoluidine and determining the polymer concentration using colorimetric techniques.
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