Title:
METHOD AND DEVICE FOR SAMPLING GEOTHERMAL FLUID
Document Type and Number:
Japanese Patent JPS62133287
Kind Code:
A
Abstract:
A method and an apparatus for extracting geothermal fluid are disclosed. Pressurized and superheated steam is injected (9) into a hot water region below the flashing point (7) of the hot water in the well so as to lower the level of said flashing point (7) 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.
Inventors:
WADA SABURO
Application Number:
JP27216885A
Publication Date:
June 16, 1987
Filing Date:
December 03, 1985
Export Citation:
Assignee:
NIPPON OIL ENG KK
International Classes:
E21B43/00; E21B43/12; F03G4/00; F03G7/04; F24J3/08; (IPC1-7): E21B43/00
Attorney, Agent or Firm:
Kyozo Yuasa
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