Trial 4.xlsx
type: Distribution
access URL: https://gdr.openei.org/files/873/Trial%204%20%281%29.xlsx
media type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
description: Fourth of four microhole drilling test conducted. Measures weight on bit (WOB) and rate of penetration (ROP) per time (s) with an associated objective. Includes plot of WOB vs Time.
format: XLS
issued: 2021-06-24T00:13:51.996526
modified: 2025-11-20T18:20:30.900505

Microhole Test Data
type: Dataset
contact point: Organization
  fn: Jiann Su
keyword: geo
keyword: hammers
keyword: amerigeo
keyword: sandia
keyword: national
keyword: microhole
keyword: geothermal
keyword: north-america
keyword: geoss
keyword: amerigeoss
keyword: high-operating-temperature
keyword: drilling
keyword: ckan
keyword: hot
keyword: percussion
keyword: united-states
description: Drilling results from the microhole project at the Sandia High Operating Temperature test facility. The project is seeking to help reduce the cost of exploration and monitoring of geothermal wells and formations by drilling smaller holes. The tests were part of a control algorithm development to optimize the weight-on-bit (WOB) used during drilling with a percussive hammer.
issued: 2016-05-23T06:00:00+00:00
modified: 2018-06-12T21:51:26+00:00
spatial: Location

US Migrating
type: Agent

Trial 3.xlsx
type: Distribution
access URL: https://gdr.openei.org/files/873/Trial%203%20%281%29.xlsx
media type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
description: Third of four microhole drilling test conducted. Measures weight on bit (WOB) and rate of penetration (ROP) per time (s) with an associated objective. Includesa plot of ROP vs WOB and aplot of ROP and WOB vs Time.
format: XLS
issued: 2021-06-24T00:13:51.996529
modified: 2025-11-20T18:20:30.900905

Trial 1.xlsx
type: Distribution
access URL: https://gdr.openei.org/files/873/Trial%201%20%281%29.xlsx
media type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
description: First of four microhole drilling test conducted. Measures weight on bit (WOB) and rate of penetration (ROP) per time (s) with an associated objective. Includes plot of WOB and Objective vs Time.
format: XLS
issued: 2021-06-24T00:13:51.996532
modified: 2025-11-20T18:20:30.901292

Trial 2.xlsx
type: Distribution
access URL: https://gdr.openei.org/files/873/Trial%202%20%281%29.xlsx
media type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
description: Second of four microhole drilling test conducted. Measures weight on bit (WOB) and rate of penetration (ROP) per time (s) with an associated objective. Includes plot of ROP and Objective vs Time.
format: XLS
issued: 2021-06-24T00:13:51.996519
modified: 2025-11-20T18:20:30.900069

Test Runs.xlsx
type: Distribution
access URL: https://gdr.openei.org/files/873/Test%20Runs%20%281%29.xlsx
media type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
description: Six brief test runs measuring rate of penetration (ROP) vs weight on bit (WOB). Includes plots of ROP vs WOB.
format: XLS
issued: 2021-06-24T00:13:51.996534
modified: 2025-11-20T18:20:30.901670