Development of an Improved Cement for Geothermal Wells Geothermal Project
Last modified on July 22, 2011.
|Project Title||Development of an Improved Cement for Geothermal Wells|
|Project Type / Topic 1||Recovery Act: Enhanced Geothermal Systems Component Research and Development/Analysis|
|Project Type / Topic 2||High Temperature Cements|
|Project Description||Cementing of geothermal wells poses a unique challenge because these wells need to operate in the harsh environment of high temperature and/or high pressure. The current state of the art in geothermal well cementing is limited primarily to a proprietary blend of fly ash-modified calcium aluminate phosphate cement or CaP cement. Although CaP cements appear to perform effectively once placed, their use requires meticulous planning far above and beyond a normal cementing operations, and has unpredictable results, which tend to increase cost and limit their widespread use.|
|Objectives||Develop a novel, zeolite-containing lightweight, high temperature, high pressure geothermal cement, which will provide operators with an easy to use, flexible cementing system that saves time and simplifies logistics.|
|Awardees (Company / Institution)||Trabits Group, LLC|
|Partner 1||University of Alaska Fairbanks|
|Partner 2|| ThermaSource Cementing, Inc.
|Funding Opportunity Announcement||DE-FOA-0000075|
|DOE Funding Level (total award amount)||$2,154,238.00|
|Awardee Cost Share||$538,557.00|
|Total Project Cost|| $2,692,795.00
|Principal Investigator(s)|| George Trabits
|Targets / Milestones|| - Find the right type of zeolite, and its optimum blend with silica flour and other additives to achieve the cement characteristics desirable for geothermal applications.
Successful completion of the project will result in the development of a cementing solution for geothermal wells that is cost effective as well as logistically simple. This should greatly enhance rapid deployment of geothermal energy as a renewable energy source in USA, thereby reducing the flow of US dollars to petroleum exporting countries.
|Location of Project|| Wasilla, AK, Fairbanks, AK, Arbuckle, CA, Reno, NV
|Impacts||If successful, the project will result in the development of a cementing solution for high temperature geothermal wells.|
|Funding Source||American Recovery and Reinvestment Act of 2009|
|References||EERE Geothermal Technologies Programs|