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, 1994
Filed:
Oct. 21, 1992
Charles J Githens, Lawton, OK (US);
William G Harrison, Wichita Falls, TX (US);
Other;
Abstract
The method of using soap as a fluid loss additive in the hydraulic fracturing treatment of oil and gas wells includes choosing a soap having a titre value which will insure that the soap will dissolve and liquify at the formation temperature in the area where fluid loss is to be reduced. The formation temperature in this area is reduced to an extent where the soap will not liquify, while the soap is introduced into the area under pressure, and this lower temperature is maintained while a fracturing or cementing process is carried out. Subsequently, the temperature in the area where fluid loss is to be reduced is permitted to rise and liquify the soap which is then removed from the well.