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:
Jun. 27, 1989
Filed:
Jul. 25, 1988
Robert H Friedman, Houston, TX (US);
Billy W Surles, Houston, TX (US);
Texaco Inc., White Plains, NY (US);
Abstract
Methods are provided for selectively consolidating naturally occurring mineral grains such as sand within a subterranean formation to form a fluid permeable barrier which restrains the movement of sand particles when oil passes through the barrier. A fluid comprising a polymerizable resin such as an oligomer of furfuryl alcohol and as a diluent, a polar organic solvent such as butylacetate and an oil soluble, slightly water-soluble acid catalyst such as orthonitrobenzoic acid is provided and injected into the formation to be consolidated. Water which is at least 70% saturated with respect to sodium chloride or other effective inorganic salt is then injected into the resin fluid saturated formation to open flow paths within the portion of the formation invaded by the polymerizable resin fluid. The well is shut in for sufficient period of time for polymerization to convert the injected fluids into a permeable barrier around the wellbore.