{"id":{"repo_id":"texas","oai_identifier":"oai:repositories.lib.utexas.edu:2152/129151"},"canonical_url":"https://search.dev.ndltd.org/etd/texas/oai:repositories.lib.utexas.edu:2152/129151","repository":{"repo_id":"texas","name":"University of Texas","base_url":"https://repositories.lib.utexas.edu/server/oai/request"},"display":{"title":"The application of the self potential profiling method in the delineation of buried geothermal reservoirs","abstract":"The self potential measurement has long been a widely used geophysical tool to delineate geological parameters. Borehole applications are well known, and when used in profiling observed potentials across an area, ore bodies can be located and boundaries defined. The self-potential profiling technique has been applied in the discovery and delineation of geothermal reservoirs in sedimentary sequences of strata. Laboratory data show that upon the introduction of heat to simulated reservoir systems, at differing physical boundaries where coupling exists, electric currents are generated which can be measured at the surface. Field work was carried out over shallow oil reservoirs undergoing thermal recovery projects, representing artificial geothermal reservoirs. By profiling self-potential measurements across the pattern in which high heat flow was introduced, the method has shown the ability to locate, delineate, and trace the movement of the high temperature system through the life of the field under production. Field techniques are still unrefined, and the applicability of the method to delineate heat movements of thermal projects in oilfields may necessitate control of on-site facilities. The method may further be limited by the geological characteristics of the surface layers of rock","abstract_html":"The self potential measurement has long been a widely used geophysical tool to delineate geological parameters. Borehole applications are well known, and when used in profiling observed potentials across an area, ore bodies can be located and boundaries defined. The self-potential profiling technique has been applied in the discovery and delineation of geothermal reservoirs in sedimentary sequences of strata. Laboratory data show that upon the introduction of heat to simulated reservoir systems, at differing physical boundaries where coupling exists, electric currents are generated which can be measured at the surface. Field work was carried out over shallow oil reservoirs undergoing thermal recovery projects, representing artificial geothermal reservoirs. By profiling self-potential measurements across the pattern in which high heat flow was introduced, the method has shown the ability to locate, delineate, and trace the movement of the high temperature system through the life of the field under production. Field techniques are still unrefined, and the applicability of the method to delineate heat movements of thermal projects in oilfields may necessitate control of on-site facilities. The method may further be limited by the geological characteristics of the surface layers of rock","abstract_has_math":false,"creators":["Dahlgren, Duane Christopher"],"institution":"University of Texas at Austin","degree_name":"Master of Science in Engineering","degree_level":"Masters","degree_discipline":"Petroleum Engineering","degree_department":null,"school":null,"contributors":[],"advisors":["Dorfman, Myron"],"committee_chairs":[],"committee_members":[],"year":1978,"date_issued":"1978","date_published":"1978","updated_at":"2026-07-24T05:01:24Z","subjects":["Self-potential method","Prospecting","Geothermal reservoirs","Sedimentary strata","Oil reservoirs","Geothermal reservoir location","Geothermal reservoir delineation","Thermal projects"],"languages":["en"],"rights":["Copyright © is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works."],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://doi.org/10.26153/tsw/55666"],"render_values":[{"text":"https://doi.org/10.26153/tsw/55666","href":"https://doi.org/10.26153/tsw/55666","code":true}]}]},"links":{"outbound_url":"https://hdl.handle.net/2152/129151","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Dorfman, Myron"]},{"key":"dc:creator","label":"Author","values":["Dahlgren, Duane Christopher"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2024-10-14T18:32:30Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2024-10-14T18:32:30Z"]},{"key":"dc:date.issued","label":"Date","values":["1978"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Petroleum Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science in Engineering"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Texas at Austin"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Self-potential method","Prospecting","Geothermal reservoirs","Sedimentary strata","Oil reservoirs","Geothermal reservoir location","Geothermal reservoir delineation","Thermal projects"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright © is held by the author. 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Laboratory data show that upon the introduction of heat to simulated reservoir systems, at differing physical boundaries where coupling exists, electric currents are generated which can be measured at the surface. Field work was carried out over shallow oil reservoirs undergoing thermal recovery projects, representing artificial geothermal reservoirs. By profiling self-potential measurements across the pattern in which high heat flow was introduced, the method has shown the ability to locate, delineate, and trace the movement of the high temperature system through the life of the field under production. Field techniques are still unrefined, and the applicability of the method to delineate heat movements of thermal projects in oilfields may necessitate control of on-site facilities. The method may further be limited by the geological characteristics of the surface layers of rock"]},{"key":"dc:format.medium","label":"Dc Format Medium","values":["electronic"]},{"key":"dc:title","label":"Title","values":["The application of the self potential profiling method in the delineation of buried geothermal reservoirs"]}]}],"canonical_facts":{"dc:contributor.advisor":["Dorfman, Myron"],"dc:creator":["Dahlgren, Duane Christopher"],"dc:date.accessioned":["2024-10-14T18:32:30Z"],"dc:date.available":["2024-10-14T18:32:30Z"],"dc:date.issued":["1978"],"dc:description.abstract":["The self potential measurement has long been a widely used geophysical tool to delineate geological parameters. Borehole applications are well known, and when used in profiling observed potentials across an area, ore bodies can be located and boundaries defined. The self-potential profiling technique has been applied in the discovery and delineation of geothermal reservoirs in sedimentary sequences of strata. Laboratory data show that upon the introduction of heat to simulated reservoir systems, at differing physical boundaries where coupling exists, electric currents are generated which can be measured at the surface. Field work was carried out over shallow oil reservoirs undergoing thermal recovery projects, representing artificial geothermal reservoirs. By profiling self-potential measurements across the pattern in which high heat flow was introduced, the method has shown the ability to locate, delineate, and trace the movement of the high temperature system through the life of the field under production. Field techniques are still unrefined, and the applicability of the method to delineate heat movements of thermal projects in oilfields may necessitate control of on-site facilities. 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Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works."],"dc:subject":["Self-potential method","Prospecting","Geothermal reservoirs","Sedimentary strata","Oil reservoirs","Geothermal reservoir location","Geothermal reservoir delineation","Thermal projects"],"dc:title":["The application of the self potential profiling method in the delineation of buried geothermal reservoirs"],"dc:type":["Thesis"],"thesis:degree_discipline":["Petroleum Engineering"],"thesis:degree_level":["Masters"],"thesis:degree_name":["Master of Science in Engineering"],"thesis:institution_name":["University of Texas at Austin"]},"updated_at":"2026-07-24T05:01:24Z"}