Core Testing and Numerical Well Simulations for Edwards-Trinity (Plateau) Aquifer
Project Summary:
The objective is to locate, describe, and test core rock properties for the Edwards-Trinity (Plateau) aquifers. In general, the TWDB is interested in descriptions and photographs of the cores, as well as testing of core samples for porosity, permeability, cementation exponent (m-factor), and magnetic resonance imaging. In addition, the TWDB is interested in simulating well logs for a geographical distribution of key wells to correlate well log responses to formation properties derived from core and nearby well logs, allowing the TWDB to approximate formation properties in wells where limited information on formation properties is available.
- TWDB Contract Manager:
- Evan Strickland, P.G.
- Funding Recipient:
- The University of Texas at Austin, Hildebrand Department of Petroleum and Geosystems Engineering
- Project Administrator:
- Carlos Torres-Verdin, Ph.D., P.E.
- Zoya Heidari, Ph.D.
- Participants:
- The University of Texas at Austin, Hildebrand Department of Petroleum and Geosystems Engineering
- Project Start Date:
- January 2021
- Project Completion Date:
- August 31, 2021
- Total Project Cost:
- $90, 736
- TWDB Share of Project Cost:
- $90, 736
- Benefits:
-
The stakeholders will have access to map of core locations; core descriptions and photos; and lab results for each sample (an upwards of 15 to 25 samples) including porosity, permeability, cementation exponent “m-factor”, magnetic resonance images, and any other analyses performed.
- Contracted Final Report "Numeric Well Log Simulations and Core Testing for the Edwards-Trinity (Plateau) Aquifer"
- For access to supplemental data, including core photos, please contact Evan Strickland at evan.strickland@twdb.texas.gov
Project Details
Participants
Project Sponsors:
Texas Water Development Board
Evan Strickland, P.G. - Contract Manager
1700 N. Congress Avenue
Austin, TX 78711
512-463-6929
Funding Recipient / Project Manager:
The University of Texas at Austin, Hildebrand Department of Petroleum and Geosystems Engineering
Carlos Torres-Verdin, Ph.D., P.E. – Professor
Zoya Heidari, Ph.D.- Professor
200 E. Dean Keeton St., C0300
Austin, TX 78712-1585
512-471-3161
Project Milestones
| Event | Date |
|---|---|
| Study approved by TWDB Board | March 13, 2020 |
| Interagency contract executed | January 2020 |
Progress Reports
Final Report and Data
Past Webinars
TWDB Stakeholder Webinar, September 27, 2022
Dr. Torres-Verdín was the principal investigator of the Edwards-Trinity (Plateau) Aquifer numerical well simulations and core analysis study completed in 2021. This presentation overviews the methods and computer algorithms developed by the Joint Industry Research Consortium on Formation Evaluation at The University of Texas at Austin to numerically simulate well logs under a wide range of borehole environmental conditions and loggings instruments. It is shown that the numerical simulation of well logs can be used to estimate aquifer properties with minimal influence from drilling, borehole, and instrument-footprint effects, including gamma-ray, neutron-density, resistivity, and spontaneous potential logs. Examples of application are described for several wells and their borehole measurements acquired in the Edwards-Trinity (Plateau) Aquifer.