Title:
【発明の名称】ダウンホール加熱機
Document Type and Number:
Japanese Patent JPH01500530
Kind Code:
A
Abstract:
A downhole heating generator for producing steam or hot water in oil wells to aid in the recovery of oil includes an elongated cylindrical housing suspended by a cable within the tube string of an oil well bore at the level of a geological formation to be heated. The housing has a closed bottom forming a container continously receiving water through a hose from a ground level source and contains a pair of electrode rods, preferably of carbon, mounted in end-to-end spaced aligned relationship and immersed at least partially in the water received in the housing for boiling the water and/or generating steam. The electrodes are connected to a ground level electrical transformer and are arranged to be capable of being energized at at least 2300 volts without arcing therebetween. The steam or hot water is discharged from the housing through an upper exit opening and is directed through openings in the tube string to the geological formation to be heated. A plurality of generators may be suspended in tandem in the tube string.
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Inventors:
Robert Elle
Application Number:
JP50426887A
Publication Date:
February 23, 1989
Filing Date:
June 26, 1987
Export Citation:
Assignee:
Mesyukou Oil Recovery Corporation
International Classes:
E21B43/24; E21B36/00; E21B36/04; (IPC1-7): E21B43/24
Foreign References:
| US4378846A | 1983-04-05 | |||
| US1474638A | 1923-11-20 |
Attorney, Agent or Firm:
Keinosuke Ozawa