{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["019:20"], "contactPoint": {"@type": "vcard:Contact", "fn": "David Raymond", "hasEmail": "mailto:dwraymo@sandia.gov"}, "dataQuality": true, "description": "Operational performance requirements are needed to support development of specifications for downhole motor power sections to be used for drilling hard rock during geothermal wellbore construction.  Theoretical torque specifications are derived based upon a widely-accepted rock-reduction model in the literature using representative properties for typical rock formations.  The derived values correspond to optimum motor performance for rock reduction at minimum specific energy and form a set of minimum requirements on output torque and power for downhole motors.  Actual values should be increased to account for factors such as increased hydrostatic pressure at depth, bit wear, heterogeneous rock, and non-ideal drilling conditions.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://gdr.openei.org/files/446/GDR_HTDM_TorqueAndPower_MinSE_RevA%20%281%29.pdf", "description": "Describes drilling tests conducted on Berea Sandstone, Arizona Sandstone, Sierra White Granite, and Mississippi Limestone", "format": "pdf", "mediaType": "application/pdf", "title": "Technical Paper.pdf"}], "identifier": "https://data.openei.org/submissions/6757", "issued": "2014-09-10T06:00:00Z", "keyword": ["geothermal", "motor", "downhole", "specific energy", "torque", "power section", "bit wear", "hydrostatic pressure", "heterogeneous rock", "heterogeneous geology", "non-ideal drilling conditions", "poor drilling conditions", "operations", "performance requirements", "motor power sections", "drilling", "well", "wellbore", "construction"], "landingPage": "https://gdr.openei.org/submissions/446", "license": "https://creativecommons.org/licenses/by/4.0/", "modified": "2017-06-27T14:12:46Z", "programCode": ["019:006"], "projectLead": "Lauren Boyd", "projectNumber": "SNL FY11 AOP3.3", "publisher": {"@type": "org:Organization", "name": "Sandia National Laboratories"}, "spatial": "{\"type\":\"Polygon\",\"coordinates\":[[[-106.62815093994,35.101821697211],[-106.62815093994,35.101821697211],[-106.62815093994,35.101821697211],[-106.62815093994,35.101821697211],[-106.62815093994,35.101821697211]]]}", "title": "Operational Performance Requirements For Motor Power Sections Used in Geothermal Drilling Based Upon Minimum Specific Energy"}