Abstract
In preparation for Collab experiment 2, performing shear stimulation of pre-existing fractures, which is to be performed on the 4100 level of the Sanford Underground Research Facility (SURF) a decision was made that the pressure and pumping systems required remote control operations. This decision was made for a number of reasons based off lessons learned in experiment #1 on the 4850 level of SURF. First, the current pandemic provided an opportunity for automation of remote pumping systems as travel is very difficult and deploying personnel on short notice to adjust systems is impossible. Second, in order to ensure safety of personnel and integrity of the equipment the list of personnel who could operate/perform work on the pressure and flow systems in experiment 1 was purposely kept small. This was done with the best of intentions, however, it resulted in significant fatigue for the personnel who were permitted to perform these operations. With a remote operations system, much of the work which previously required someone on site will be performed remotely. The system itself is comprised of a number of hydraulic pumps and plumbing which has been automated such that the pressure, flow, venting, and selection of injection and production zones can be controlled independently from remote locations. While remote operations are not uncommon for hazardous/long term operations, hydraulic fracturing systems on this scale (injection rates of a few gallons per minute) are nearly always manned.
Original language | English |
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Title of host publication | Using the Earth to Save the Earth - 2021 Geothermal Rising Conference, GRC 2021 |
Publisher | Geothermal Resources Council |
Pages | 686-693 |
Number of pages | 8 |
ISBN (Electronic) | 0934412278 |
State | Published - 2021 |
Event | 2021 Geothermal Rising Conference: Using the Earth to Save the Earth, GRC 2021 - San Diego, United States Duration: Oct 3 2021 → Oct 6 2021 |
Publication series
Name | Transactions - Geothermal Resources Council |
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Volume | 45 |
ISSN (Print) | 0193-5933 |
Conference
Conference | 2021 Geothermal Rising Conference: Using the Earth to Save the Earth, GRC 2021 |
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Country/Territory | United States |
City | San Diego |
Period | 10/3/21 → 10/6/21 |
Funding
The authors would like to acknowledge the support of Taylor Myers, Johnny Jaramillo, and Joseph Pope in fabrication/assembly of the pressure panels, also Eric Robey for a thoughtful review. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology & Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-NA0003525. This paper describes objective technical results and analysis. Any subjective views or opinions that might be expressed in the paper do not necessarily represent the views of the U.S. Department of Energy or the United States Government. This material was based upon work supported by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy (EERE), Office of Technology Development, Geothermal Technologies Office. The United States Government retains, and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. This material was based upon work supported by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy (EERE), Office of Technology Development, Geothermal Technologies Office. The United States Government retains, and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The authors would like to acknowledge the support of Taylor Myers, Johnny Jaramillo, and Joseph Pope in fabrication/assembly of the pressure panels, also Eric Robey for a thoughtful review. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology & Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525. This paper describes objective technical results and analysis. Any subjective views or opinions that might be expressed in the paper do not necessarily represent the views of the U.S. Department of Energy or the United States Government.
Keywords
- Collab
- Enhanced geothermal system
- Geothermal
- Hydraulic Fracture
- Remote operation