| Geothermal Well Cost Update 2011 |
Mansure, A. J.; Blankenship, D. A. |
Drilling; Well completion; Economics |
Well costs; Drilling; Well construction; Well cost analysis |
Geothermal Resources Council Transactions |
2011 |
English |
| Results of the US Navy Geothermal Program Office 2010 Drilling Project at Hawthorne Army Depot, Nevada |
Meade, Dave; Lazaro, Mike; Bjornstad, Steve; Alm, Steve; Tiedeman, Andy; Sabin, Andy; Page, Chris |
Exploration; Drilling; Slimholes; Well logging |
Drilling; Hawthorne Army Depot; U.S. Navy; Geothermal Program Office; Equilibrated temperature; Lithology; Well completion |
Geothermal Resources Council Transactions |
2011 |
English |
| Bentonite Deposits in Kenya as Drilling Mud |
Mibei, Geoffrey |
Bentonite; Drilling fluids |
Bentonite; Gypsum; Gel; Thixotropic test; Drilling mud; Tonnage |
Geothermal Resources Council Transactions |
2011 |
English |
| Analysis of Thermal Behavior of Materials to be Used as Insulators in Logging Tools for Oil Wells |
Mijarez, Rito; Aragon, Alfonso; Santoyo-Gutierrez, S. |
Well logging |
Well logging; Insulation material; Thermal insulation; Thermal conductivity; Dewar flask |
Geothermal Resources Council Transactions |
2011 |
English |
| Controlled Directional Drilling in Kenya and Iceland (Time Analysis) |
Miyora Ong'au, Thomas |
Directional drilling; Operations management; Economics |
Geothermal wells; Directional drilling; Time analysis; Casing; Logging; Cementing |
Geothermal Resources Council Transactions |
2011 |
English |
| New Roller Cone Bit Technology For Geothermal Application Significantly Increases On-Bottom Drilling Hours |
Orazzini, Simone; Kasirin, Regillio; Ferrari, Giampaolo; Bertini, Alessandro; Bizzocchi, Isabella; Ford, Robert; Qingxiu Li; Ming Zhang |
Drill bits |
Geothermal; Superheated steam roller cone bit; Drilling optimization; Tuscany; Italy |
Geothermal Resources Council Transactions |
2011 |
English |
| Reverse Circulation Cementing of Geothermal Wells: A Comparison of Methods |
Rickard, Bill; Samuel, Abraham S.; Alarcon, Benedicto; Bailey, Alan; Howard, Wendell |
Cementing |
Cementing; Reverse circulation cementing; Geothermal well cementing; Foamed cement; Lost circulation; Effective circulating density; ECD; Annular pressure; Lost circulation cementing |
Geothermal Resources Council Transactions |
2011 |
English |
| KS 14 Puna Geothermal Venture: Flawless Execution of Aerated Mud Drilling With Mud Motor in Hostile Environment |
Rickard, Bill; Samuel, Abraham; Lee, Chris; Spielman, Paul; Cuadros, Ivan; Long, Justin; Robert, Earl |
Drilling; Drilling fluids; Downhole motors; Lost circulation |
Hawaii; Puna; Ormat; Geothermal; Aerated mud; Drilling motor; Fixed hole opener |
Geothermal Resources Council Transactions |
2011 |
English |
| An Investigation of Drilling Success in Geothermal Exploration, Development and Operation |
Sanyal, Subir K.; Morrow, James W. |
Drilling; Risk management; Economics; Business administratio |
Drilling success; Drilling success rate; Drilling risk; Learning curve |
Geothermal Resources Council Transactions |
2011 |
English |
| Effectiveness of Selective Borehole Enlargement to Improve Flow Performance of Geothermal Wells |
Stacey, Robert W.; Sanyal, Subir; Potter, Jared; Wideman, Tom |
Well stimulation |
Spallation drilling; Slotting; Productivity enhancement; Skin factor; Borehole enlargement; Geothermal |
Geothermal Resources Council Transactions |
2011 |
English |
| Temporary Cementitious Sealing Materials |
Sugama, Toshifumi; Butcher, Thomas; Brothers, Lance; Bour, Daniel |
HDR/EGS; Drilling; Cementing; Lost circulation; Temporary fr |
Self-degradation; Temporary; Slag; Fly ash; Cement; Sealing; Enhanced Geothermal System |
Geothermal Resources Council Transactions |
2011 |
English |
| Deep Top Cementing Job--A Lesson Learnt from a Geothermal Well Drilling in Indonesia |
Sumotarto, U.; Supriyanto, E.; Affif, M.; Nugroho, S. D. |
Well completion; Cementing; Lost circulation |
Geothermal; Drilling; Cementing; Tulehu-Ambon-Indonesia; Macaroni pipes; Top job |
Geothermal Resources Council Transactions |
2011 |
English |
| System Design Alternatives and their Influence on Geothermal Heat Recovery from Co-Produced Oil and Gas Wells |
Suryanarayana, P. V.; Sachdeva, P.; Ceyhan, I.; Ring, G. |
Oil and gas co-production; Power plant design and operation; |
— |
Geothermal Resources Council Transactions |
2011 |
English |
| Enhancement of Geothermal Well Drilling and Brine Pumping Efficiency using TiC/Ti Composites |
Voronov, O. A.; Kear, B. H. |
Corrosion; Drill bits; Well pumps; Bearings; Titanium carbid |
Geothermal energy; drill bit cutters; submersible-pump bearings; efficiency; carbide-metal composites; corrosive wear; resistance |
Geothermal Resources Council Transactions |
2011 |
English |
| Geomechanical Modeling for Thermal Spallation Drilling |
Walsh, Stuart D. C.; Lomov, Ilya; Roberts, Jeffery J. |
Thermal spallation |
Thermal spallation drilling; numerical modeling; Engineered Geothermal Systems |
Geothermal Resources Council Transactions |
2011 |
English |
| Hydrothermal Spallation for the Treatment of Hydrothermal and EGS Wells: A Cost-Effective Method for Substantially Increasing Reservoir Production and Flow Rates |
Wideman, Thomas W.; Sazdanoff, Nicholas; Unzelman-Langsdorf, Jason; Potter, Jared M. |
Hydrothermal spallation |
Well enhancement; reaming; hydrothermal spallation; near wellbore impedance; skin factor; novel drilling technology; hard rock drilling; geothermal drilling; Engineered Geothermal Systems; Enhanced Geothermal Systems; EGS |
Geothermal Resources Council Transactions |
2011 |
English |
| Continuous Microseismic Record Analysis for Reservoir Hydrofracture Treatments |
Andrews, Jennifer; Reyes-Montes, Juan Miguel; Young, R. Paul |
HDR/EGS; Hydraulic fracturing; Fractures; Reservoir modeling |
Geothermal; seismicity; fracturing; EGS; geophysics |
Geothermal Resources Council Transactions |
2011 |
English |
| Reflection Imaging of EGS Reservoirs at Soultz and Basel using Microseismic Multiplets as a Source |
Asanuma, Hiroshi; Tamakwa, Keita; Niitsuma, Hiroaki; Baria, Roy; Haring, Markus |
HDR/EGS; Reservoir modeling; Geophysical surveys; Microseism |
Microseismicity; multiplet; passive reflection; EGS/HDR reservoir |
Geothermal Resources Council Transactions |
2011 |
English |
| Using QEMSCAN to Characterize Fracture Mineralization at the Newberry Volcano EGS Project, Oregon: A Pilot Study |
Ayling, Bridget; Rose, Peter; Petty, Susan |
Fractures; Geological surveys; Reservoir modeling |
Automated mineralogy; QEMSCAN; fractures; mineralogy; geochemistry; Newberry Volcano; Oregon |
Geothermal Resources Council Transactions |
2011 |
English |
| Combined scCO2-EGS IGCC to Reduce Carbon Emissions from Power Generation in the Desert Southwestern United States (New Mexico) |
Chandra, Divya; Conrad, Caleb; Hall, Derek; Montebello, Nicholas; Weiner, Andrew; Narasimharaju, Anukalp; Rajput, Vaibhav; Phelan, Emilia; Pisupati, Sarma; Turaga, Uday; Izadi, Ghazal; Mohan, Arun; Elsworth, Derek |
HDR/EGS; Supercritical fluids; Carbon dioxide; Working fluid |
Geothermal; integrated gasification combined cycle (IGCC); supercritical carbondioxide; EGS; economic analysis |
Geothermal Resources Council Transactions |
2011 |
English |