Numerical model illustrating flow focusingUT GeoFluids is managed by the University of Texas Institute for Geophysics (UTIG) and is currently supported by 10 energy companies at a cost of ~ $50,000/year. We are at the start of a 10-year effort entitled GeoFluids2020. Our results are used to predict pressure and stress, design stable and safe drilling programs, and predict hydrocarbon migration and entrapment. We study the state and evolution of pressure, stress, deformation and fluid flow through experiments, models, and field study:

  1. Experimental: We analyze fabric, acoustic, electrical, and material properties of mudrocks : 0.1-100 MPa.
  2. Poromechanical Modeling: We develop and apply coupled models to link realistic rheologies, deformation, stress (shear and normal), and pore pressure.
  3. Field Study: We analyze pore pressure, stress, and deformation in both conventional and unconventional basins.

We produce innovative concepts and analysis workflows that couple geology and geomechanics to predict and interpret pore pressure and stress in the subsurface. We have

  • developed online software that predicts reservoir pressure,
  • released databases and material models that describe mudrock material behavior, and
  • developed workflows to predict stress in salt systems and thrust belts.

Our new research aims to develop a unified approach that incorporates stress dependency, creep, mineralogical transformation, and loading path to illuminate the state and evolution of pressure and stress in basins. We are applying this approach to develop two and three-dimensional whole earth models that improve well design, real-time drilling, borehole stability, reservoir simulation and seismic imaging.

Click here for more details about the Consortium, or contact the Consortium Co-Directors, Dr. Peter Flemings and Dr. Jack Germaine.

UT GEOFLUIDS 2021 ANNUAL MEETING: Registration for the GeoFluids Annual Meeting is now open! The meeting will be held virtually from February 17-19, 2021 (Wednesday through Friday). Register here.

The UT GeoFluids team annual retreat and workshop was held online this year. The team worked hard putting finishing touches to their talks and preparing for the upcoming UT GeoFluids Annual Meeting in February.

Peter Flemings spoke at the Bureau Seminar Series on the origins of overpressure at the Macondo Well. Click here to watch a recording.

We are excited to announce that GeoFluids doctoral student Landon Lockhart will be a summer intern with Chevron working in Geomechanics.

Brendon Casey profiled in GEOSTRATA: New Faces in G-I: Brendan Casey

Russ Ewy, Jozina Dirkzwager, and Craig Bovberg published their paper Claystone porosity and mechanical behavior vs. geologic burial stress in Marine and Petroleum Geology.

View all UT GeoFluids publications on the publications page
Members can access copies of publications at the Member Area Publication Site

2020
Wiggs, D.M., Flemings, P.B., Spikes, K.T., Nikolinakou, M.A., 2020, Mudrock Velocity Andisotropy Based on History of the Full Strain Tensor. Society of Exploration Geophysicists. https://doi.org/10.1190/segam2020-3427647.1

Ramiro-Ramirez, S., Bhandari, A.R., Flemings, P.B., Reed, R.M., 2020, Porosity and Permeability Heterogeneity in the Upper Wolfcamp, Delaware Basin, West Texas: Implications for Production. Unconventional Resources Technology Conference. https://doi.org/10.15530/urtec-2020-2105

Heidari, M., Nikolinakou, M. I., and Flemings, P. B., 2020, Modified Cam-Clay Model for Large Stress Ranges and its Predictions for Geological and Drilling Processes. Journal of Geophysical Research: Solid Earth; https://doi.org/10.1029/2020JB019500

UT GeoFluids produces innovative concepts and analysis workflows that couple geologic loading and fluid flow to predict pore pressure and stress in the subsurface. These include:

  • UT Centroid: online software to predict reservoir pressure as a function of reservoir geometry and mudstone permeability.
  • Seismic Pressure Prediction Integrated with Geomechanical Modeling: a highly innovative workflow integrating seismic velocity data with geomechanical modeling to predict pressure and the full stress tensor.
  • UT-FAST-P3: An online, educational tool allowing users to predict and compare pore pressure using the full stress tensor while demonstrating why it is important to go beyond vertical effective stress (VES) models.

Learn more.