Description: Test wells to tap and sample geothermal-geopressured formations at 15,000 to 20,000 feet in the Gulf Coast area can be drilled routinely utilizing available equipment and methods. Electrical logs, surveys and fluid samplers can be used to obtain accurate and reliable information as to depths, temperatures, pressures, and fluid content of the geopressured formations before the well is completed. But it will be necessary to set casing and flow the well, at least temporarily, to secure fluid production volume and pressure data to evaluate the producibility of the geopressured resource. Electric logging and wireline survey methods are fully developed techniques for measuring the parameters needed to assess a geopressured zone before setting casing. Formation subsidence, though it may be slow to develop, can be measured during radioactivity tracer surveys. The following conclusions are drawn: existing well logging and surveying methods and equipment are generally satisfactory for testing and sampling a geothermal-geopressured resource; no significant areas of research are needed to predict, detect, and evaluate geopressured formations for their potential as geothermal resources. Static and dynamic testing procedures using existing technology are satisfactory to test, sample, and analyze a geopressured reservoir.
Creator: Boyd, W.E.
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