FR2385882A1 - Simultaneous formation of two drill shafts - and part recovery of molten rock for heat content utilisation - Google Patents

Simultaneous formation of two drill shafts - and part recovery of molten rock for heat content utilisation

Info

Publication number
FR2385882A1
FR2385882A1 FR7634293A FR7634293A FR2385882A1 FR 2385882 A1 FR2385882 A1 FR 2385882A1 FR 7634293 A FR7634293 A FR 7634293A FR 7634293 A FR7634293 A FR 7634293A FR 2385882 A1 FR2385882 A1 FR 2385882A1
Authority
FR
France
Prior art keywords
drill
rock
shafts
utilisation
fluid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR7634293A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CLAY RUFUS
Original Assignee
CLAY RUFUS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CLAY RUFUS filed Critical CLAY RUFUS
Priority to FR7634293A priority Critical patent/FR2385882A1/en
Publication of FR2385882A1 publication Critical patent/FR2385882A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/14—Drilling by use of heat, e.g. flame drilling
    • E21B7/15—Drilling by use of heat, e.g. flame drilling of electrically generated heat
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/12—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using drilling pipes with plural fluid passages, e.g. closed circulation systems
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • F24T10/30—Geothermal collectors using underground reservoirs for accumulating working fluids or intermediate fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • F24T10/40—Geothermal collectors operated without external energy sources, e.g. using thermosiphonic circulation or heat pipes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/10—Geothermal energy

Abstract

The recovery of geothermal heat energy from subterranean rock comprises: drilling the earth with a rock melting drill so as to form two distinct shafts; circulating heat absorbing fluid down one shaft, through the drill and up the other shaft; and recovering heat from the fluid. The appts. includes an electric heating element capable of withstanding a temp. of 1200 degrees C and a drill for forming two shafts and moving some of the rock. The drill is such as to allow passage of a circulating fluid between the shafts. Both shafts are drilled together and communicate without recourse to rock fracturing. Additional piping is not required for the circulating fluid nor for excess rock removal. Excessive mechanical force upon the drill is avoided so drill wear is reduced. The force on the heating element is minimal so they may be fabricated from materials which allow higher temps. to be attained.
FR7634293A 1976-11-15 1976-11-15 Simultaneous formation of two drill shafts - and part recovery of molten rock for heat content utilisation Withdrawn FR2385882A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7634293A FR2385882A1 (en) 1976-11-15 1976-11-15 Simultaneous formation of two drill shafts - and part recovery of molten rock for heat content utilisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7634293A FR2385882A1 (en) 1976-11-15 1976-11-15 Simultaneous formation of two drill shafts - and part recovery of molten rock for heat content utilisation

Publications (1)

Publication Number Publication Date
FR2385882A1 true FR2385882A1 (en) 1978-10-27

Family

ID=9179883

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7634293A Withdrawn FR2385882A1 (en) 1976-11-15 1976-11-15 Simultaneous formation of two drill shafts - and part recovery of molten rock for heat content utilisation

Country Status (1)

Country Link
FR (1) FR2385882A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993020323A1 (en) * 1992-04-03 1993-10-14 St. Peterburgsky Gorny Institut Imeni G.V.Plekhanova Method and device for electrothermomechanical drilling

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR727948A (en) * 1931-02-02 1932-06-27 Drilling execution method
US3357505A (en) * 1965-06-30 1967-12-12 Dale E Armstrong High temperature rock drill
US3396806A (en) * 1964-07-28 1968-08-13 Physics Internat Company Thermal underground penetrator
US3786858A (en) * 1972-03-27 1974-01-22 Atomic Energy Commission Method of extracting heat from dry geothermal reservoirs

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR727948A (en) * 1931-02-02 1932-06-27 Drilling execution method
US3396806A (en) * 1964-07-28 1968-08-13 Physics Internat Company Thermal underground penetrator
US3357505A (en) * 1965-06-30 1967-12-12 Dale E Armstrong High temperature rock drill
US3786858A (en) * 1972-03-27 1974-01-22 Atomic Energy Commission Method of extracting heat from dry geothermal reservoirs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993020323A1 (en) * 1992-04-03 1993-10-14 St. Peterburgsky Gorny Institut Imeni G.V.Plekhanova Method and device for electrothermomechanical drilling
US5479994A (en) * 1992-04-03 1996-01-02 Sankt-Peter Burgsky Gorny Institut Imenig.V./Plekhanova Method of electrothermomechanical drilling and device for its implementation

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