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Title: Rock-exploitation method based on thermodynamic cycles utilizing in-situ energy source
Claims: What is claimed is: 1. A rock-exploitation method based on thermodynamic cycles utilizing an in-situ energy source, comprising: sinking at least one well as far down as a producing horizon; admitting stratal fluid into said well; discharging said fluid from the well above the producing horizon into a fluid-permeable rock mass, said fluid being utilized as a heat-carrying medium in an underground circuit which includes means for admission of fluid into the well, a section of the well between a fluid inlet and a fluid outlet, and the fluid-permeable rock mass adjacent to said section of the well; injecting a heat-carrying agent into said well where it circulates, said heat-carrying agent exchanging heat with said fluid within said section of the well, said heat-carrying agent having a higher temperature than the stratal fluid. 2. A rock-exploitation method based on thermodynamic cycles utilizing an in-situ energy source, comprising: sinking at least one well deeper than the producing horizon; admitting stratal fluid into the well; discharging said stratal fluid from the well below the producing horizon into a fluid-permeable rock means, said fluid being utilized as a heat-carrying medium in an underground circuit which includes means for admission of fluid into the well, a section of the well between a fluid inlet and a fluid outlet, and the fluid-permeable rock mass adjacent to said section of the well; and injecting a heat-carrying agent into the well where it circulates, said heat-carrying agent exchanging heat with said fluid within said section of the well, said heat-carrying agent having a higher temperature than the stratal fluid. 3. A rock-exploitation method based on thermodynamic cycles utilizing an in-situ energy source, comprising sinking at least one well as far down as a producing horizon; admitting stratal fluid into said well, said fluid being contained in said rock and contacting same; discharging said fluid from the well above the producing horizon into a fluid-permeable rock mass, said fluid being utilized as a heat-carrying medium in an underground circuit which includes means for admission of fluid into the well, a section of the well between the fluid inlet and fluid outlet and the fluid-permeable rock mass adjacent to said section of the well; injecting a heat-carrying agent into said well where it circulates, said fluid transferring heat to said heat-carrying agent within said well section. 4. The method according to claim 3, comprising setting off in the producing horizon at least one underground explosion so as to obtain a rock mass highly permeable relative to the producing stratum; said rock mass separating the flows of hot and cold fluid by natural convection and a section of the well between the fluid inlet and the fluid outlet; and circulating said fluid through a large volume of rock from its outlet from said well to its inlet into the same well through the formed highly permeable rock. 5. A rock-exploitation method based on thermodynamic cycles utilizing an in-situ energy source, comprising sinking at least one well to a producing horizon; forcing a heat-carrying agent into said well and circulating it therethrough with an outlet to a consumer; at the same time, feeding the well with a fluid contained in rock of the producing horizon; said heat-carrying agent transferring heat from the rock of the producing horizon by means of the fluid forced into said well; discharging said fluid with a varied heat content into fluid-permeable rock; separating the flows of hot and cold fluid by means of natural convection and by means of the section of said well from the fluid inlet to the fluid outlet; and circulating said fluid from its outlet from said well through the permeable rock in the direction of its inlet into the same well, while restoring its initial heat content. 6. The method according to claim 5, comprising conducting at least one underground explosion in the producing horizon so as to form a rock mass permeable with respect to the producing strata; said rock mass separating the flows of hot and cold fluid by natural convection and by a well section between the fluid inlet and the fluid outlet; and circulating said fluid in a large volume of rock from its outlet from said well to its inlet into the same well through the formed highly permeable rock. 7. A rock-exploitation method based on thermodynamic cycles utilizing an in-situ energy source, comprising: sinking at least one well as far down as a producing horizon; admitting stratal fluid into said well, said fluid being contained in the rock and being in contact therewith; discharging said fluid from the well above the producing horizon into a fluid permeable rock mass, said fluid being utilized as a heat-carrying medium in an underground circuit which includes means for admission of fluid into the well; a section of the well between the fluid inlet and the fluid outlet, and the fluid-permeable rock mass adjacent to said well section; injecting a heat-carrying agent into said well where it circulates, the temperature of said heat-carrying agent being higher than the temperature of said fluid containing in the rock of said producing horizon; said heat-carrying agent being cooled by said fluid within said well section. 8. A rock-exploitation method based on thermodynamic cycles utilizing an in-situ energy source, comprising: sinking at least one well deeper than the producing horizon; admitting stratal fluid into the well, said fluid being contained in the rock and being in contact therewith; discharging said fluid from the well above the producing horizon into a fluid-permeable rock mass, said fluid being utilized in an underground circuit comprising said means for admission of the fluid into the well, a section of the well between a fluid inlet and a fluid outlet, and the fluid-permeable rock mass adjacent to said well section; injecting a heat-carrying agent into said well where it circulates, the temperature of said heat-carrying agent exceeding that of the fluid contained in the rock of said producing horizon, said heat-carrying agent being cooled by said fluid within said well section. Other info: Inventors: Aladiev, Ivan Timofeevich (ULIT, SA) Voskresensky, Kirill Dmitrievich Gukov, Gennady Petrovich (ULIT, SA) Saperov, Evgeny Valentinovich (POSEL, OK, US) Fardzinov, Valery Kombolatovich Application Number: 414772 Filing Date: 1973-11-12 Publication_date: 1976-02-17 Assignee: Primary Class(es): 166/299 166/302 Other Classes: US Patent Ref:
Other Refs:
Primary Examiner: Novosad, Stephen J. Assistant Examiner: Attorney: |
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