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- Path: sparky!uunet!stanford.edu!morrow.stanford.edu!pangea.Stanford.EDU!karish
- From: karish@pangea.Stanford.EDU (Chuck Karish)
- Newsgroups: sci.geo.geology
- Subject: Re: Geothermal Energy
- Date: 20 Nov 1992 07:19:38 GMT
- Organization: Mindcraft, Inc.
- Lines: 38
- Distribution: usa
- Message-ID: <1ei3iaINNom1@morrow.stanford.edu>
- References: <1992Nov19.234238.764@ra.oc.com>
- NNTP-Posting-Host: pangea.stanford.edu
- Summary: Hot dry rocks
-
- In article <1992Nov19.234238.764@ra.oc.com> barb@dbaix.oc.com
- (Barbara Rush) writes:
- >I have read an article about a "hot dry rocks" geothermal energy project
- >that was being launched, I believe by the Los Alamos Laboratory, but the
- >article is a couple of years old. (The article is at home and I'm not,
- >so I can't check it out just now.)
- >
- >Does anyone know the current status of this project? Is it still going
- >on? If so, what degree of success have they attained and what are the
- >major problems they have encountered?
-
- I haven't heard about it for some time, either; I don't
- know if it's still going on.
-
- The idea was to drill two holes, close to one another.
- Pump water down one, get high-pressure steam from the
- other one.
-
- The problems should be pretty obvious:
-
- - As usual for geothermal, you have to drill into
- very hot rocks - not easy on the drilling equipment.
-
- - You have to get the holes just the right distance apart.
- Not as hard now as it used to be; drilling technology
- has improved.
-
- - You have to find just the right fracture system to
- send the water through a large volume of hot rock
- without losing too much, or you have to make your
- own fractures.
-
- I'd expect the "without losing too much" bit to be the
- sticking point.
- --
-
- Chuck Karish karish@mindcraft.com
- (415) 323-9000 x117 karish@pangea.stanford.edu
-