Resource Analysis for Deep Direct-Use Feasibility Study in East Texas MEMO SMU DDDU HeatFlowExplanationforEastTexas.pdf

The National Renewable Energy Laboratory, Southern Methodist University Geothermal Laboratory, Eastman Chemical, Turbine Air Systems, and the Electric Power Research Institute are evaluating the feasibility of using geothermal heat to improve the efficiency of natural gas power plants. The area of interest is the Eastman Chemical plant in Longview, Texas, which is on the northwestern margin of the Sabine Uplift. The study is focused on determining the potential for a geothermal reservoir within a 10 km radius of the site as defined by data from existing geological studies and cross-sections within the depths of 2,100 to 3,400 meters. Wells within a 20 km radius are included for broader geological comparison to determine the heat flow, temperature-at-depth, and oil and gas field porosity and permeability. The geothermal reservoir model is based on the multiple formation top data sources, published literature data, and well log interpretations within the 10 km radius. Area thickness estimates, reservoir extent bounding parameters, potential flow rates, and temperatures are combined to calculate a reservoir productivity index and develop a reservoir production model. Historical fluid volumes production data are used as an independent check for the reservoir productivity index and production model results. The reservoir parameters calculated here are being used for the surface engineering model to determine the economic viability of using geothermal fluids for a deep direct use application at this site. The data files are submitted as separate workbooks in 'content model' format, including: Well Fluid Production, Heat Flow, and Geologic Reservoir. The steps for calculating heat flow and understanding the different variables including temperature correction and thermal conductivity.

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Field Value
Citation Date 2018-07-16T00:00:00-06:00

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Original ID f0000008-58cc-4372-a567-000000001073
Index Date 2019-11-15T08:59:45-07:00
Original Format ISO-USGIN
Original Version 1.2


Name Maria Richards
Position primary contact
Organization Southern Methodist University

Geographic Extent

North Bound 32.695326473132
South Bound 32.197456487701
East Bound -94.317572675781
West Bound -95.065668701171