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:
Dec. 13, 1994
Filed:
May. 10, 1993
Yeshayahu Greitzer, Ramat Hasharon, IL;
Lucien Y Bronicki, Yavne, IL;
Ormat Turbines (1965) Ltd., Yavne, IL;
Abstract
A geothermal well is operated by continuously pumping spent geothermal fluid into the well and continuously adding concentrated acid to the spent geothermal fluid, such that the concentration of acid in the fluid is in the range of 0.1% to 5%, and occasionally to 10%. Over a period of time, the spend geothermal fluid flowing through the geological formations of the geothermal field carries the dilute acid into the formations for dissolving rock and increasing the permeability thereof. If it is desired to decrease the permeability of the formations, components of drilling mud or other suitable material, are continuously added to the spent geothermal fluid.