Method and apparatus for extracting geothermal fluid

Details Method and apparatus for extracting geothermal fluid Method and apparatus for extracting geothermal fluid

1988-02-19

1989-09-19

Ostrager, Allen M.

Power plants

Utilizing natural heat

Geothermal

166266, 166303, 166372, F03G 700

Patent

active

048669393

ABSTRACT:
A method and an apparatus for extracting geothermal fluid are disclosed. Pressurized and superheated steam is injected into a hot water region below the flashing point of the hot water in the well so as to lower the level of said flashing point in the well, while the well head pressure of a production well drilled into a water-dominated geothermal reservoir is held constant. As a result of this injection, the pressure of water head in the well relative to the pressure of the geothermal reservoir fluid is significantly reduced and both the extraction of connate water and the production of steam at the well head are remarkably enhanced.

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