In-situ evaporation

Wells – Processes – Producing the well

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C166S369000

Reexamination Certificate

active

07117946

ABSTRACT:
The invention relates to methods for the exploitation of desirable geo-productive resources (for example, superheated steam, crude oil, fissuring) from boreholes with an at least partly cemented casing (4), whereby a pressure drop is generated from the rock chamber (5), surrounding the lower borehole chamber (3) to the above, which renders the geo-productive resource exploitable. According to the invention, the resource may be rendered more exploitable, whereby a pressure seal (70, 72, 74, 80) is fitted for a pressure separation between the lower borehole chamber (3) and the flow chamber (1, 14), above the pressure seal (70, 72, 74, 80) within the casing (4), a working pressure (preferably atmospheric pressure) is introduced into at least part of the flow chamber (1, 14) and the working pressure is introduced into the lower borehole chamber (3) and/or into the rock chamber surrounding the above. A vertically-displaceable valve tube (68) is preferably used as lower end section of the production pipe (7).

REFERENCES:
patent: 1812267 (1931-06-01), Lewis
patent: 2624410 (1953-01-01), Nixon
patent: 3608640 (1971-09-01), Willhite et al.
patent: 4090564 (1978-05-01), Cook et al.
patent: 4155404 (1979-05-01), Hollingsworth
patent: 4359092 (1982-11-01), Jones
patent: 4498543 (1985-02-01), Pye et al.
patent: 5085276 (1992-02-01), Rivas et al.
patent: 5115866 (1992-05-01), Brown et al.
patent: 5188183 (1993-02-01), Hopmann et al.
patent: 5318126 (1994-06-01), Edwards et al.
patent: 5566758 (1996-10-01), Forester
patent: 5924696 (1999-07-01), Frazier
patent: 6598682 (2003-07-01), Johnson et al.
patent: 6810960 (2004-11-01), Pia
patent: 2002/0020535 (2002-02-01), Johnson et al.
patent: 2005/0167108 (2005-08-01), Chang et al.
International Search Report.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

In-situ evaporation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with In-situ evaporation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and In-situ evaporation will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3622321

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.