Published: Wednesday, June 22, 2011 | XML Metadata
Collection of 80 Temperature depth logs from a geothermal well field in Long Valley, California. Spreadsheets include temperature at depth and graphs of data. Data courtesy of the US Geological...
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Published: Sunday, April 1, 2007 | XML Metadata
This Geothermal Permitting Guide was created as a reference tool for geothermal stakeholders interested in developing low temperature direct use and/or power production projects. It addresses the...
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Published: Tuesday, January 1, 2008 | XML Metadata
PROGRAM HIGHLIGHTS: GEOTHERMAL DRILLING ACTIVITY
In 2008, 32 new high-temperature geothermal wells were drilled in California compared to 12 wells drilled in 2007. Twenty- two of these wells were...
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Published: Monday, January 1, 2007 | XML Metadata
This paper presents an analysis of the well productivity enhancement possible by drilling multi-legged (or “forked” or “multilateral”) wells in geothermal fields at temperatures in the 100 to 250°C...
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Published: Saturday, January 1, 2000 | XML Metadata
To prioritize information for archiving and to determine the
applicability of the Fenton Hill experience to the future
development of Enhanced Geothermal Systems (EGS), an
integrated review was...
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Published: Saturday, January 1, 2000 | XML Metadata
In planning the development of a geothermal field, there is a
trade-off between plant capacity and the cost of make-up
drilling. A larger plant benefits from economies of scale in
the construction...
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Published: Saturday, January 1, 2005 | XML Metadata
For the purposes of this paper, sustainability is defined as
the ability to economically maintain the installed capacity,
over the amortized life of a power plant, by taking practical
steps (such...
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Published: Thursday, January 1, 2009 | XML Metadata
As part of the Desert Peak EGS project, tracer testing was
conducted involving two existing injection wells at the Desert
Peak geothermal field. The tracer data showed very strong returns
from...
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Published: Saturday, January 1, 2000 | XML Metadata
The publicly available database on oil and gas fields in California
provides a significant and consistent source of information which
can be used to evaluate geopressure. A total of 410 pools have...
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Published: Thursday, January 1, 1998 | XML Metadata
Some proponents of geothermal energy have described
this energy source as renewable, but many geothermal fields
show declines in output as exploitation proceeds. On the
other hand, those who would...
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Published: Sunday, January 1, 2006 | XML Metadata
Formal booking of geothermal energy reserves, for accounting
purposes or annual reporting to shareholders or
portfolio management, is not yet a common practice among
geothermal companies. In the...
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Published: Thursday, January 1, 2009 | XML Metadata
Geothermal assessments and cost estimates were performed
as part of California’s Renewable Energy Transmission Initiative
(RETI) to help guide transmission planning. The RETI assessments...
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Published: Friday, January 1, 1993 | XML Metadata
This paper presents the initial results of a survey of the
occurrence and characteristics of geopressured fluid
resources in California using the publicly-available database
involving more than...
Resource Identifiers: SGP-TR-145
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Published: Saturday, April 1, 1989 | XML Metadata
The purposes of this paper are to review the
stratigraphic and structural models which have
been developed for The Geysers from surface
mapping, propose a model which is the most
compatible with...
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Published: Sunday, September 22, 2002 | XML Metadata
This paper investigates the technical feasibility of improving
the productivity of superheated steam production wells by low-rate
water injection downhole. A combined numerical simulation
model of...
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Published: Tuesday, January 1, 2002 | XML Metadata
The Geysers geothermal field is the largest developed geothermal
system in the world. The total installed capacity is presently
2,056 MW although actual production in early 1994 was
estimated to...
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Published: Sunday, September 22, 2002 | XML Metadata
The potentially exploitable geothermal energy reserves associated with an active or dormant volcano can be estimated using a methodology that combines principles of conductive heat transfer and...
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Published: Sunday, September 22, 2002 | XML Metadata
Existing geologic models of geothermal systems work reasonably
well for the exploration of systems clearly associated with
active, or recently active, volcanic centers. The poor results of...
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Published: Thursday, January 1, 2004 | XML Metadata
This paper presents the results of a numerical simulation study of the performance of Enhanced Geothermal Systems (EGS), specifically, reservoirs with subcommercial permeability enhanced by hydraulic...
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Published: Friday, January 1, 1993 | XML Metadata
This paper presents the initial results of a survey of the
occurrence and characteristics of geopressured fluid
resources in California using the publicly-available database
involving more than...
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![Collection Logo](http://repository.usgin.org/sites/default/files/collection/image/logo/u1/CADeptConservationLogo.jpg?1287765944)
Documents from CDMG or DOGGR that are not available from their website. For AASG geothermal data project.
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