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Technology Development and Field Trials of EGS Drilling Systems at Chocolate Mountain

Jan 01, 2012
23.51 MB
Publicly accessible
Polycrystalline diamond compact (PDC) bits are routinely used in the oil and gas industry for drilling medium to hard rock but have not been adopted for geothermal drilling, largely due to past reliability issues and higher purchase costs. The Sandia Geothermal Research Departmen...
Authors
Knudsen, S. et al Sandia National Laboratories
geothermalchocolate mountainsdrillingpdc bitroller conegranitechocolate mountains drillingsynthetic diamondrate of penetrationegslateral vibration spectrumcaliforniacasouthern californiasocaldrilling recordsperformance datadrilling chartsbefore and afterpicturesvibration spectrum

Operational Performance Requirements For Motor Power Sections Used in Geothermal Drilling Based Upon Minimum Specific Energy

Sep 10, 2014
869.71 kB
Publicly accessible
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-re...
Authors
Raymond, D. Sandia National Laboratories
geothermalmotordownholespecific energytorquepower sectionbit wearhydrostatic pressureheterogeneous rockheterogeneous geologynon-ideal drilling conditionspoor drilling conditionsoperationsperformance requirementsmotor power sectionsdrillingwellwellboreconstruction

GLADE Project: Final Technical Report

Aug 28, 2026
4.49 MB
Curated
Final Technical Report for the GLADE Geothermal Drilling project in the DJ Basin of Colorado. The Geothermal Limitless Approach to Drilling Efficiencies (GLADE) project was undertaken to evaluate whether advanced oil and gas drilling practices could be adapted to improve geotherma...
Authors
Rhodes, R. OXY USA Inc.
geothermalenergyfinal reportdj basincolorado geothermalgladewell constructiongranitic basementdrillingdrilling practices

GLADE Project: Lessons Learned Document

Aug 28, 2026
16.29 MB
Curated
Lessons Learned document for the GLADE Geothermal Drilling project in the DJ Basin, Colorado. The Geothermal Limitless Approach to Drilling Efficiencies (GLADE) project was undertaken to evaluate whether advanced oil and gas drilling practices could be adapted to improve geotherm...
Authors
Rhodes, R. OXY USA Inc.
geothermalenergylessons learneddj basincoloradogladedrillingegs

GLADE Project: Pre-Drill Drilling Prognosis

Aug 28, 2026
156.12 MB
Publicly accessible
Pre-Drill drilling prognosis for the GLADE Project wells, GLADE East and GLADE West, in the DJ Basin Colorado. The Geothermal Limitless Approach to Drilling Efficiencies (GLADE) project was undertaken to evaluate whether advanced oil and gas drilling practices could be adapted to ...
Authors
Rhodes, R. OXY USA Inc.
geothermalenergydrilling prognosisgladedj basincoloradowell planswell construction

GLADE Project: Daily Mud Reports

Aug 28, 2026
73.1 MB
Curated
Files include daily mud reports for GLADE East and GLADE West wells in the DJ Basin, Colorado. Reports include daily mud data summaries for each well while drilling. The Mud Reports summarize mud composition and volumes each day throughout the project. The Geothermal Limitless A...
Authors
Rhodes, R. OXY USA Inc.
geothermalenergymud reportsdj basincoloradogladewell constructiondrillingdrilling technologyoperating data

GLADE Project: Daily Drilling Reports

Aug 28, 2026
41.37 MB
Publicly accessible
Files include daily operational and drilling reports for GLADE East and GLADE West wells in the DJ Basin of Colorado. Reports include drilling summaries for work done and progress made daily for each well. There is a companion Final Drilling Report that summarizes some of the data...
Authors
Rhodes, R. OXY USA Inc.
geothermalenergygladedj basincolorado geothermaldrilling

GLADE Project: Pre-Feasibility Economic Evaluation by National Lab of the Rockies

Aug 28, 2026
1.96 MB
Publicly accessible
The Geothermal Limitless Approach to Drilling Efficiencies (GLADE) project was undertaken in Denver-Julesburg (DJ) Basin Colorado to evaluate whether advanced oil and gas drilling practices could be adapted to improve geothermal well construction in deep, hot, hard-rock environmen...
Authors
Mibei, G. et al OXY USA Inc.
geothermalenergyeconomic evaluationdj basincoloradogladetechno-economicclosed-loopegsfeasibilitythermophysicaldrilling costlcoe sensitivity

Microhole drilling technology utilizing a golden section search algorithm

Jun 23, 2021
812.35 MB
Publicly accessible
A fundamental issue in microhole drilling is that delivering high weight-on-bit (WOB), high torque rotational horsepower to a conventional drill bit does not scale down to the hole sizes necessary to realize the envisioned cost savings An optimization algorithm called a golden sec...
Authors
Su, J. et al Sandia National Laboratories
geothermalpercussive hammerweight-on-bitoptimizationmicroholesslimholesdrillingexplorationmonitoringtechnical assessmentfeasibilitywobgssgolden section searchalgorithmblue canyon domenew mexico tech energetic materials research and testing centersocorronew mexico

EGS Collab Experiment 1: Common Discrete Fracture Network

Sep 18, 2019
5.69 MB
Publicly accessible
This package includes data and models that support hydraulic fracture stimulation and fluid circulation experiments in the Sanford Underground Research Facility (SURF). A paper by Schwering et al. (2020) describes the deterministic basis for developing a "common" discrete fracture...
Authors
Schwering, P. et al Sandia National Laboratories
geothermalenergyegs collabsurfhydraulicfracturingstimulationsanford underground research facilityexperimentegsgeophysicsfracturenetworkdiscrete fracture networkdfnfluidflowmodeldatafluid circulationboreholeweepcoresystemenhanced geothermal systemsandia national laboratorieselectrical resistivitywellinjection testtracerdrilling

Advanced Geothermal Drilling and Logging Technologies

Dec 15, 2013
810.76 kB
Publicly accessible
The objective of advanced drilling and logging technologies is to promote ways and means to reduce the cost of geothermal drilling through an integrated effort which involves developing an understanding of geothermal drilling and logging needs, elucidating best practices, and fost...
Authors
Raymond, D. et al Sandia National Laboratories
geothermalieagiaannex vii2012drillingannual reportloggingtechniques

Effectiveness of Shallow Temperature Surveys to Target a Geothermal Reservoir at Previously Explored Site at McGee Mountain, Nevada: Final Report for U.S. Department Of Energy Grant EE-0002830

Mar 07, 2014
2.23 MB
Publicly accessible
The McGee Mountain geothermal area was selected to test early-stage shallow temperature survey techniques and drill two slim holes to test the resource. Geothermal Technical Partners, Inc. was able to complete only a small portion of the project before lack of funding prevented f...
Authors
Zehner, R. Geothermal Technical Partners, Inc.
geothermalnevadamcgee mountainshallow temperature surveygeoprobegeochemistrygeologytransmissionreportgravitysurveyfeasibilityarchaeological clearancegeothermometrycost-effectivethermal anomaliescost

kISMET Final Report and Highlights

Oct 31, 2016
10 MB
Publicly accessible
The files in this submission describes the results of a series of stress measurement and hydraulic fracturing experiments conducted at the Sanford Underground Research Facility (SURF) in Lead, SD. This report describes the accomplishments of the kISMET (permeability (k) and Induce...
Authors
Oldenburg, C. et al Lawrence Berkeley National Laboratory
geothermalenergystressegshydraulic fracturingnumerical modelingsanford underground research facilitycorepoorman formationanalytical modelingsubterhydraulic stimulationkismetpermeabilityinduced seismicitymanagementsurfborehole

EGS Collab Experiment 2: Earth Model Datasets

May 29, 2022
747.89 MB
Publicly accessible
The EGS Collab Project performed a series of tests to increase the understanding the response of crystalline rock mass to stimulations and fluid circulation to efficiently implement enhanced geothermal systems (EGS) technologies. The EGS Collab team created two underground testbed...
Authors
Neupane, G. et al Idaho National Laboratory
geothermalenergyegs collabegssurfsanford underground research facilityleadsouth dakotacollabraw dataprocessed datageologyconceptual model

EGS Collab Experiment 2: Core Logs

Jul 08, 2019
1.36 GB
Publicly accessible
Core logs and photos from the EGS Collab project Experiment 2 for the Top Vertical well (TV4100) and the Top Horizontal well (TV 4100) on the 4100 Level of SURF (the Sanford Underground Research Facility). The core logs are stored in a single PDF file with 5-ft run intervals. In t...
Authors
Dobson, P. et al Lawrence Berkeley National Laboratory
geothermalenergyegs collabsurfhydraulicfracturingstimulationsanford underground research facilityexperimentegscore logcorefoldingfoliationwell datalogging

EGS Collab Experiment 1: Accelerometer orientations

Aug 19, 2020
608.24 kB
Publicly accessible
Document describing the methodology used to determine the accelerometers' three-component orientations at the first EGS Collab testbed using Continuous Active-Source Seismic Monitoring (CASSM) data and hodogram analysis. Original submission: gdr.openei.org/submissions/1166
Authors
Hopp, C. et al Lawrence Berkeley National Laboratory
geothermalenergyegs collabmicroseismicsensor orientationaccelerometerorientationsurfsanford underground research facilityhydraulicfracturingexperimentstimulationmeso-scalemesoscalecrystalline rock3d sensorleadsouth dakotasta/lta triggering algorithmmicroseismicitypythongeospatial data3-ccassm datahodogram analysisprincipal component analysispcawellborewell datawell geometrybandpass filtercontinuous active-source seismic monitoringcassmthree-component

Utah FORGE: Rock Properties

Apr 07, 2018
32.28 MB
Publicly accessible
This is an Excel spreadsheet that contains rock properties from several wells in the Utah FORGE study area. This includes a map of the wells. Data is described in the Final Topical Report included in the resources below.
Authors
Gwynn, M. Energy and Geoscience Institute at the University of Utah
geothermalenergyforgeutah forgerock propertiesroosevelt hot springsroosevelt hot springs rock propertiesresistivitytemperature plotsgammasonicdensityvelocitycaliperporositymaficslocation mapdrilling datalog responsequartzbulk densityksparmagnetic susceptibilitycorerock propsutahrockpropertieswell dataresourcecharacterizationgeomechanicsegsmilford

University of Illinois Campus Deep Direct-Use Feasibility Study Geology Log and Drilling Prospectus

Apr 16, 2018
160.51 kB
Publicly accessible
Geology log and drilling prospectus for University of Illinois at Urbana-Champaign (UIUC) Energy Farm.
Authors
Nelson, W. University of Illinois
geothermalenergyddudeep direct-usegeologyst. peter sandstonemt. simon sandstoneformation analysistest hole dataanticipateddepththicknessrock typedrill logwell logformation topgeologic unit

Grain-Scale Failure in Thermal Spallation Drilling

Jan 01, 2012
646.35 kB
Publicly accessible
Geothermal power promises clean, renewable, reliable and potentially widely-available energy, but is limited by high initial capital costs. New drilling technologies are required to make geothermal power financially competitive with other energy sources. One potential solution is ...
Authors
Walsh, S. et al Lawrence Livermore National Laboratory
geothermalthermal spallation drillingthermomechanical processesmodelinggrain-scale mechanics

Geomechanical Modeling for Thermal Spallation Drilling

Aug 24, 2011
382.95 kB
Publicly accessible
Wells for Engineered Geothermal Systems (EGS) typically occur in conditions presenting significant challenges for conventional rotary and percussive drilling technologies: granitic rocks that reduce drilling speeds and cause substantial equipment wear. Thermal spallation drilling,...
Authors
Walsh, S. et al Lawrence Livermore National Laboratory
geothermalgeomechanical modelingthermal spallation drillingengineered geothermal systemsegsgeodynnumerical modeling

EGS Collab Experiment 1: SIMFIP Notch-164 GRL Paper

Sep 24, 2020
11.52 MB
Publicly accessible
Characterizing the stimulation mode of a fracture is critical to assess the hydraulic efficiency and the seismic risk related to deep fluid manipulations. We have monitored the three-dimensional displacements of a fluid-driven fracture during water injections in a borehole at ~1.5...
Authors
Guglielmi, Y. Lawrence Berkeley National Laboratory
geothermalenergysimfipnew borehole instrumenthydrofractureegs collabnucleateanisotropyshear displacementwellboreexperimentstimulationseismicseismicityfracturehydraulic conductivitystressshearboreholemicro-shearingfoliationinjection testsanford underground research facilitysurfegshydraulicgeophysicsdisplacementflow rate

Hawaii Play Fairway Analysis: Lanai Daily Drilling Reports

Jul 05, 2019
452.14 kB
Publicly accessible
The Hawaii Play Fairway Project deepened an already existing water well in Palawai Basin, Lanai island. Lanai Well #10 was deepened from 427 m to ~1057 m, with nearly continuous rock core collected. Spanning the dates from May 13 to July 5, 2019, the daily drilling reports of Lana...
Authors
Thomas, D. and Lautze, N. University of Hawaii
geothermalenergylanaigroundwaterhawaiiwaterwellcore photosdrillingdrilling datadrilling logspalawai basindatareport

Cornell University Borehole Observatory Sidewall Core Data

Jul 16, 2026
385.18 MB
In progress
This data set includes sidewall core data from well Cornell ESH #1 (API 31109300030000), known as the Cornell University Borehole Observatory, or CUBO. It is a stratigraphic well drilled to characterize potential EGS resources. The Drilling commenced on June 21, 2022 and total dep...
Authors
Tester, J. et al Cornell University
geothermalenergycornell universitycubodeep direct usedistrict heatingddudeep wellwell datadrillingesh-1api 31109300030000appalachian basin

EGS Collab Experiment 1: Continuous Active-Source Seismic Monitoring (CASSM) Data

Apr 25, 2018
5.01 TB
Publicly accessible
The U.S. Department of Energy's Enhanced Geothermal System (EGS) Collab project aims to improve our understanding of hydraulic stimulations in crystalline rock for enhanced geothermal energy production through execution of intensely monitored meso-scale experiments. The first expe...
Authors
Schoenball, M. and Sprinkle, P. Lawrence Berkeley National Laboratory
geothermalenergyegs collabsurfhydraulicfracturingstimulationsanford underground research facilityexperimentegsseismicactive sourceimagingmonitoringcassmcontinuousexperiment 1geophysicshydrophonegeophoneaccelerometerwell instrumentationmeso scale

Utah FORGE 3-2417: Meteorological Data During 2023 Completion/Circulation

Jun 10, 2024
2.4 MB
Publicly accessible
This preliminary data archive includes meteorological data recorded at the Utah FORGE facility over the period of time including the completion/cementing of well 16B(78)-32 and the initial 2023 circulation test, largely occurring in June/July/August of 2023. This information may p...
Authors
Ajo-Franklin, J. Rice University
geothermalenergyutahutah forgeegsenhanced geothermalmeteorological datameteorologywell 78-16circulationcompletiontemperaturewindhumidityprecipitationtime seriesraw datacalibrationinstrument calibration78-16
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