High Temperature Seismic Monitoring for Enhanced Geothermal Systems - Implementing a Control Feedback Loop to a Prototype Tool by Sandia National Laboratories
dc.contributor.author | Howard, Panit | en |
dc.contributor.committeechair | Hong, Dennis W. | en |
dc.contributor.committeemember | Maldonado, Frank | en |
dc.contributor.committeemember | Wicks, Alfred L. | en |
dc.contributor.department | Mechanical Engineering | en |
dc.date.accessioned | 2014-03-14T20:37:18Z | en |
dc.date.adate | 2012-06-05 | en |
dc.date.available | 2014-03-14T20:37:18Z | en |
dc.date.issued | 2012-05-01 | en |
dc.date.rdate | 2012-06-05 | en |
dc.date.sdate | 2012-05-16 | en |
dc.description.abstract | Geothermal energy can make an important contribution to the U.S. energy portfolio. Production areas require seismic monitoring tools to develop and monitor production capability. This paper describes modifications made to a prototypical seismic tool to implement improvements that were identified during previous tool applications. These modifications included changing the motor required for mechanical coupling the tool to a bore-hole wall. Additionally, development of a closed-loop process control utilized feedback from the contact force between the coupling arm and bore-hole wall. Employing a feedback circuit automates the tool deployment/anchoring process and reduces reliance on the operator at the surface. The tool components were tested under high temperatures and an integrated system tool test demonstrated successful tool operations. | en |
dc.description.degree | Master of Science | en |
dc.identifier.other | etd-05162012-162415 | en |
dc.identifier.sourceurl | http://scholar.lib.vt.edu/theses/available/etd-05162012-162415/ | en |
dc.identifier.uri | http://hdl.handle.net/10919/32891 | en |
dc.publisher | Virginia Tech | en |
dc.relation.haspart | Howard_PC_T_2012.pdf | en |
dc.rights | In Copyright | en |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
dc.subject | High Temperature Seismic Monitoring | en |
dc.subject | Geothermal | en |
dc.title | High Temperature Seismic Monitoring for Enhanced Geothermal Systems - Implementing a Control Feedback Loop to a Prototype Tool by Sandia National Laboratories | en |
dc.type | Thesis | en |
thesis.degree.discipline | Mechanical Engineering | en |
thesis.degree.grantor | Virginia Polytechnic Institute and State University | en |
thesis.degree.level | masters | en |
thesis.degree.name | Master of Science | en |
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