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Thermal extraction system and method
1II
New Patents streams containing H2S and ammonia to be commercially useful for more than for cooling tower makeup. In the preferred embodiment, the pH of the condensate is increased by adding ammonia and the pH increased stream is contacted with NCG to scrub and oxidize the H2S constituent of the NCG. By reducing the pH, the condensate or aqueous stream mixture can also be used to further transfer ammonia from the non-condensable gas stream to the aqueous stream, enriching the stream for use as a fertilizer/'L,'rigation water mixture. If other commercial uses are desired for the mixture and/or oxidized NCG streams, they can be resin treated to remove the ammonia constituent. With the ammonia and H2S constituents decreased, the condensate may be used for a variety of applications and the NCG can be injected or used as a commercial feed stream. Rejuvenation of the resin may be accomplished by recycling and purging with the treated NCG. The effluent purge gas may he used to further enrich irrigation waters. A nearly total elimination of all emissions from the geothermal power is thereby made possible.
a geothermal heat source to provide thermal energy at the surface by drilling a bore hole into the geothermal heat source and equipping the bore hole with a casing and multiple tubing strings. A cavern is formed in the geothermal heat source, such as a brine cavern. One of the tubing strings is a production tubing suing used to produce hot brine at the surface and has a low thermal conductivity fluid surrounding the production tubing string which may be adjusted to maintain an interface with brine from the cavern at varying levels around the production tubing string and thereby provides temperature regulation of the brine. This invention contemplates the production of brine at the surface which may be used in heat transfer applications or processed as feed stock for salt production with unsaturated brine returned to the brine cavern where it becomes saturated. The system and method may he used with an immiscible heat exchange fluid provided to absorb heat in the cavern from the mineral deposit and circulated to the surface through a heat exchanger and returned to the cavern.
5366891 BIOCHEMICAL SOLUBILIZATION OF TOXIC SALTS FROM RESIDUAL GEOTHERMAL BRINES AND WASTE WATERS 53~1~ Premuzic Eugene; Lin Mow S, East Moriches, NY, UNITED STATES Associated Universities Inc A method of solubilizing metal salts such as metal sulfides in a geothermal sludge using mutant Thiobacilli selected for their ability to metabolize metal salts at high temperature is disclosed, The method includes the introduction of mutated Thiobacillus ferrooxidans and Thiobacillus thiooxidans to a geothermal sludge or brine. The microorganisms catalyze the solubilization of metal salts, For instance, in the case of metal sulfides, the microorganisms catalyze the solubilization to form soluble metal sulfates.
5370182 THERMAL EXTRACTION SYSTEM AND METHOD Hickerson Russell D Odessa, TX, 79760, UNITED STATES The Thermal Extraction System and Method utilizes
METHOD OF AND MEANS FOR OPERATING GEOTHERMAL WELLS Greitzer Yeshayahu; Brouicki Lucien Y Ramat Hasharon, ISRAEL Assigned to Ormat Turbines (1965) Ltd 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.
New Patents streams containing H2S and ammonia to be commercially useful for more than for cooling tower makeup. In the preferred embodiment, the pH of the condensate is increased by adding ammonia and the pH increased stream is contacted with NCG to scrub and oxidize the H2S constituent of the NCG. By reducing the pH, the condensate or aqueous stream mixture can also be used to further transfer ammonia from the non-condensable gas stream to the aqueous stream, enriching the stream for use as a fertilizer/'L,'rigation water mixture. If other commercial uses are desired for the mixture and/or oxidized NCG streams, they can be resin treated to remove the ammonia constituent. With the ammonia and H2S constituents decreased, the condensate may be used for a variety of applications and the NCG can be injected or used as a commercial feed stream. Rejuvenation of the resin may be accomplished by recycling and purging with the treated NCG. The effluent purge gas may he used to further enrich irrigation waters. A nearly total elimination of all emissions from the geothermal power is thereby made possible.
a geothermal heat source to provide thermal energy at the surface by drilling a bore hole into the geothermal heat source and equipping the bore hole with a casing and multiple tubing strings. A cavern is formed in the geothermal heat source, such as a brine cavern. One of the tubing strings is a production tubing suing used to produce hot brine at the surface and has a low thermal conductivity fluid surrounding the production tubing string which may be adjusted to maintain an interface with brine from the cavern at varying levels around the production tubing string and thereby provides temperature regulation of the brine. This invention contemplates the production of brine at the surface which may be used in heat transfer applications or processed as feed stock for salt production with unsaturated brine returned to the brine cavern where it becomes saturated. The system and method may he used with an immiscible heat exchange fluid provided to absorb heat in the cavern from the mineral deposit and circulated to the surface through a heat exchanger and returned to the cavern.
5366891 BIOCHEMICAL SOLUBILIZATION OF TOXIC SALTS FROM RESIDUAL GEOTHERMAL BRINES AND WASTE WATERS 53~1~ Premuzic Eugene; Lin Mow S, East Moriches, NY, UNITED STATES Associated Universities Inc A method of solubilizing metal salts such as metal sulfides in a geothermal sludge using mutant Thiobacilli selected for their ability to metabolize metal salts at high temperature is disclosed, The method includes the introduction of mutated Thiobacillus ferrooxidans and Thiobacillus thiooxidans to a geothermal sludge or brine. The microorganisms catalyze the solubilization of metal salts, For instance, in the case of metal sulfides, the microorganisms catalyze the solubilization to form soluble metal sulfates.
5370182 THERMAL EXTRACTION SYSTEM AND METHOD Hickerson Russell D Odessa, TX, 79760, UNITED STATES The Thermal Extraction System and Method utilizes
METHOD OF AND MEANS FOR OPERATING GEOTHERMAL WELLS Greitzer Yeshayahu; Brouicki Lucien Y Ramat Hasharon, ISRAEL Assigned to Ormat Turbines (1965) Ltd 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.