The Driller
  • Sign In
  • Create Account
  • Sign Out
  • My Account
  • NEWS
  • CLASSIFIEDS
  • EQUIPMENT
  • SAFETY
  • VIDEOS
  • EDUCATION
  • SOURCEBOOK
  • EVENTS
  • SUBMIT
  • ABOUT
  • SIGN UP
cart
facebook twitter linkedin youtube
  • NEWS
  • Water
  • Geothermal
  • Construction
  • Environmental
  • Mining
  • All Industry News
  • EQUIPMENT
  • Rigs & Heavy Equipment
  • Consumables
  • Pumps
  • Featured Products
  • VIDEOS
  • Newscast
  • Drill Talks
  • Ask Brock
  • Emerging Drillers
  • EDUCATION
  • Drilling Business Insights
  • Reference Desk
  • Sponsored Insights
  • EVENTS
  • Conferences & Demo Days
  • Newscast LIVE
  • SUBMIT
  • Drillers @Work
  • ABOUT
  • Contact
  • Advertise
The Driller
search
cart
facebook twitter linkedin youtube
  • Sign In
  • Create Account
  • Sign Out
  • My Account
The Driller
  • NEWS
    • Water
    • Geothermal
    • Construction
    • Environmental
    • Mining
    • All Industry News
  • CLASSIFIEDS
  • EQUIPMENT
    • Rigs & Heavy Equipment
    • Consumables
    • Pumps
    • Featured Products
  • SAFETY
  • VIDEOS
    • Newscast
    • Drill Talks
    • Ask Brock
    • Emerging Drillers
  • EDUCATION
    • Drilling Business Insights
    • Reference Desk
    • Sponsored Insights
  • SOURCEBOOK
  • EVENTS
    • Conferences & Demo Days
    • Newscast LIVE
  • SUBMIT
    • Drillers @Work
  • ABOUT
    • Contact
    • Advertise
  • SIGN UP

The Future of Geothermal Power

January 1, 2004
Geothermal Resources Council's vision of the industry's future.

A geothermal wellhead. Photo courtesy of the Geothermal Education Office.
At a recent meeting of the Geothermal Resources Council (GRC) board of directors, U.S. Department of Energy (DOE) representatives Jay Nathwani and Joel Renner (Idaho National Engineering & Environmental Laboratory, Idaho Falls, Idaho) asked for assistance in providing comments and recommendations from the geothermal community on the current and future direction of DOE's geothermal research and development program. Subsequently, GRC board member Dr. Sabodh Garg (Science Applications International Corp., San Diego) accepted the responsibility of fulfilling the task by seeking input from the organization's membership.

A total of 18 GRC board members and others responded in a timely fashion to Dr. Garg's initial request for input and a follow-up on his draft recommendations report. As may be expected from the diversity of GRC membership, comments covered a wide range of topics. However, several common themes were discerned by Dr. Garg, which formed the basis of a report delivered by GRC president Stuart Johnson (Caithness Operating Co., Reno, Nev.) at a DOE-Industry geothermal program briefing at the Lawrence Berkeley National Laboratory. A synopsis of that report follows.

Exploration of Resource Potential

Many previously explored geothermal prospects remain undeveloped in the United States. To ensure that these prospects will be developed over the near-term, it is necessary to verify their resource potential by drilling and testing cost-shared confirmation wells. There also is a need to identify new prospects if geothermal energy is to continue in the long-term as a significant component of the U.S. energy mix. Specific suggestions include:

  • Expanding DOE's GRED (Geothermal Resource Explo-ration and Definition) program.

  • Fund cost-shared drilling for reservoir confirmation and new exploration holes, including both thermal gradient and slim holes.

  • Develop improved geophysical and geochemical exploration techniques.


Drilling Technology

Drilling costs represent a major part of total geothermal exploration and reservoir development costs. Reduced drilling costs are essential for reducing the cost of geothermal power. Specific suggestions include:

  • Develop improved materials and techniques for controlling lost circulation, which is the biggest problem in geothermal drilling.

  • Develop better cements for geothermal applications.

  • Develop improved methods of logging drilling and drill bits.

  • Reactivate the Geothermal Drilling Organization (GDO) for industry participation.


Reservoir Confirmation

Geothermal power projects typically require detailed analysis of exploration, well drilling and testing data, as well as numerical confirmation of adequate resource supply for 30 years or more.

Increased confidence in reservoir model predictions would ease the project-financing process. In addition, robust reservoir models are needed for rational reservoir management and to avoid costly failures, such as premature breakthrough of cold injected fluids into production zones. Specific suggestions included:

  • Develop and demonstrate techniques for combining geophysical (e.g. microgravity, self-potential, MT, CSAMT, seismic) and geochemical (e.g. noble gases, chloride distribution, etc.) data with traditional reservoir engineering data to develop more robust reservoir models.

  • Improve numerical reservoir modeling techniques (e.g. incorporation of fluid chemistry and non-conservative tracers).

  • Publish case studies to demonstrate the efficacy of reservoir modeling.


Enhanced Geothermal Systems

In the short term, enhanced geothermal systems (EGS) technology can be used to enhance the life of existing hydrothermal systems. EGS represents a vast geothermal energy resource for the future after conventional hydrothermal fields have been depleted. Specific suggestions included:

  • Continuing the cost-shared DOE-Industry projects at a funding level ad-equate for testing several different concepts in the near-term.

  • Near-term EGS projects should focus on producing hydrothermal systems.


Hardware Required

Certain improvements in hardware can lead to reductions in geothermal exploration costs, as well as operations and maintenance costs. Specific suggestions
  • Develop new technology for hydrogen sulfide abatement.

  • Develop protective coatings to reduce silica and other scaling, as well as corrosion from hydrochloric acid in steam.

  • Develop downhole pumps that can withstand temperature up to 400 degrees F.

  • Develop new downhole logging tools (e.g. PTS-density tool).


Low-temperature Systems

The number of high-temperature (greater than 400 degrees F) and medium-temperature (300-400 degrees F) geothermal reservoirs that remain to be developed is limited. However, a large number of lower temperature prospects (212-300 degrees F) are available for potential development. Conversion technology for the medium- and high-temperature geothermal resources is mature. The recommendation here is to develop and demonstrate economic conversion technology for geothermal resources in the low-temperature range.



Basic Research

Though it is important to support cost-shared geothermal exploration and development projects, it is essential to fund basic research at an appropriate level to provide the necessary scientific/technological underpinnings for more applied work. Specific suggestions included:

  • Both non-profit institutions (e.g. universities) and for-profit private companies should be eligible to receive grants/contracts for basic research and development of innovative geothermal technologies. The current trend in DOE budget allocations seems to de-emphasize basic research and preclude private-sector companies from participation.

  • Important research areas include the need for development of improved geophysical and geochemical exploration techniques; better methods of detecting and characterizing fracture permeability; and improved reservoir modeling techniques.


Information Dissemination

Dissemination of research and development (R&D) results, education and public outreach are essential components of a publicly funded geothermal R&D program. Specific suggestions included:

  • Continue the funding of scientific/technical meetings and publications to ensure timely dissemination of R&D results.

  • Continue and expand public information efforts on the benefits of geothermal energy as an indigenous energy source that can reduce greenhouse gas emissions and enhance national energy security. Such efforts are essential to public perception of geothermal energy as a viable renewable energy source for the future.


Distributed Power

Funding is needed to promote off-grid geothermal power systems and non-electrical uses of geothermal energy. Specific suggestions included promotion of:

  • Off-grid village power including small-scale (50 kilowatt to 5 megawatt) power generation.

  • Minerals recovery from geothermal brines.

  • Agribusiness and other direct uses (e.g. space heating) of geothermal energy resources.



    Sidebar:
    Geothermal R&D Survey Results

    To assist the U.S. Department of Energy prioritize its future research and development activities, the Geothermal Energy Association canvassed its members and associates to ask their opinions on what should be the agency's foremost geothermal research and development priorities. With rankings from 1 through 7 (with 1 being the lowest rank), respondents placed the average priority of various research and development categories as follows:

    Rank Research Category

    5.5 Cost-shared drilling

    5.2 Enhanced geothermal systems

    5.1 Reservoir engineering

    5.0 Exploration technology

    5.0 Fracture research

    5.0 Low-temperature power production

    4.7 Drilling technology

    4.7 Conceptual modeling

    4.7 Injection technology

    4.3 Higher-temperature power production

    4.3 U.S. Geological Survey resources

    4.0 Advanced production logging

    4.0 Tracer research

    3.9 Scale mitigation

    3.8 By-product research

    3.7 Case studies

    3.7 Downhole pumps

    3.7 Well logging

    3.4 Direct use

    3.3 Hydrogen production

    2.6 Geopressured research

    2.4 Magma research

Share This Story

Looking for a reprint of this article?
From high-res PDFs to custom plaques, order your copy today!

Recommended Content

JOIN TODAY
to unlock your recommendations.

Already have an account? Sign In

  • geotechnical drilling rig

    6 Onsite Phrases Environmental Drillers Hate

    Here are six phrases that highlight common frustrations...
    The Underground Network
    By: Jeff Garby
  • Wayne Nash

    Pipe Stuck? Common Causes and Solutions for Drillers

    If you have drilled for any length of time, sooner or...
    World According to Wayne
    By: Wayne Nash
  • submersible pumps, water well pumps

    Selecting and Sizing Submersible Pump Cable

    This article helps pump installers and servicers decide...
    Pumps
    By: Bob Pelikan
You must login or register in order to post a comment.

Report Abusive Comment

Subscribe For Free!
  • eNewsletters
  • Online Registration
  • Subscription Customer Service
  • Manage My Preferences

More Videos

Sponsored Content

Sponsored Content is a special paid section where industry companies provide high quality, objective, non-commercial content around topics of interest to the The Driller audience. All Sponsored Content is supplied by the advertising company and any opinions expressed in this article are those of the author and not necessarily reflect the views of The Driller or its parent company, BNP Media. Interested in participating in our Sponsored Content section? Contact your local rep!

close
  • demo of a DM450 drilling rig during a customer factory visit
    Sponsored byGeoprobe

    Built for You: Smarter Drill Rigs, Stronger Support, Bigger Opportunities

Popular Stories

MainPhotoTwoBrothers.jpg

Two Brothers' Journey Through the Drilling Industry

AI and Drought Concerns

AI’s Growing Thirst for Water and Power

demo of a DM450 drilling rig during a customer factory visit

Built for You: Smarter Drill Rigs, Stronger Support, Bigger Opportunities

The Driller Classifieds

COMPRESSORS

EAST WEST MACHINERY & DRILLING IS BUYING AND SELLING AIR COMPRESSORS, AIR BOOSTERS, AIR ENDS & PARTS
Company: East West Machinery

DRILL RIGS

LOOKING FOR LATE MODEL TOPHEADS & DRILLTECH D25'S
Company: Spikes’s Rig Sales

DRILL RIG PARTS

MEETING DRILLERS NEEDS AROUND THE WORLD
Company: East West Machinery

ELEVATORS

SEMCO INC. PIPE ELEVATORS
Company: Semco Inc.

GROUTERS

GROUTING EQUIPMENT - GROUT PUMPS & GROUT HOSE REELS
Company: Geo-Loop Inc.

PUMP HOISTS

SEMCO INC. - BASIC PUMP HOISTS
Company: Semco Inc.

WELL PACKERS

LANSAS PRODUCTS - INFLATABLE WELL PACKERS
Company: Vanderlans Lansas Products

WELL SCREENS

WELL SCREENS & SLOTTED PIPE
Company: Alloy Screen Works

Products

Water Quality Engineering: Physical / Chemical Treatment Processes

Water Quality Engineering: Physical / Chemical Treatment Processes

By carefully explaining both the underlying theory and the underlying mathematics, this text enables readers to fully grasp the fundamentals of physical and chemical treatment processes for water and wastewater.

See More Products

Subscribe to The Driller Newscast

Related Articles

  • The World According to Wayne: The Future of Drilling - the Good, The Bad and the Ugly

    See More
  • Researchers at Duke University found water from mining operations and water from hydraulic fracturing could effectively cancel each other out, yielding water clean enough to put back into fracking.

    The Future of Fracturing Flowback

    See More
  • The State of Geothermal Technology

    See More
×

Dig deeper into the drilling and water supply industry!

Build your knowledge with The Driller, covering the people, equipment and technologies across drilling markets.

SIGN UP NOW
  • RESOURCES
    • Advertise
    • Contact Us
    • Directories
    • Store
    • Want More
    • Classifieds
  • SIGN UP TODAY
    • Create Account
    • eNewsletters
    • Customer Service
    • Manage Preferences
  • SERVICES
    • Marketing Services
    • Reprints
    • Market Research
    • List Rental
    • Survey/Respondent Access
  • STAY CONNECTED
    • LinkedIn
    • Facebook
    • YouTube
    • X (Twitter)
  • PRIVACY
    • PRIVACY POLICY
    • TERMS & CONDITIONS
    • DO NOT SELL MY PERSONAL INFORMATION
    • PRIVACY REQUEST
    • ACCESSIBILITY

Copyright ©2025. All Rights Reserved BNP Media.

Design, CMS, Hosting & Web Development :: ePublishing

The Driller
search
cart
facebook twitter linkedin youtube
  • Sign In
  • Create Account
  • Sign Out
  • My Account
The Driller
  • NEWS
    • Water
    • Geothermal
    • Construction
    • Environmental
    • Mining
    • All Industry News
  • CLASSIFIEDS
  • EQUIPMENT
    • Rigs & Heavy Equipment
    • Consumables
    • Pumps
    • Featured Products
  • SAFETY
  • VIDEOS
    • Newscast
    • Drill Talks
    • Ask Brock
    • Emerging Drillers
  • EDUCATION
    • Drilling Business Insights
    • Reference Desk
    • Sponsored Insights
  • SOURCEBOOK
  • EVENTS
    • Conferences & Demo Days
    • Newscast LIVE
  • SUBMIT
    • Drillers @Work
  • ABOUT
    • Contact
    • Advertise
  • SIGN UP