Numerical model illustrating flow focusingUT GeoFluids is managed by University of Texas (Institute for Geophysics) and is currently supported by 11 energy companies at a cost of ~ $50,000/year. The 10-year effort ends in 2019. 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 thrust belts and in the sub-salt.

We produce innovative concepts and analysis work flows that couple geology and fluid flow to predict pore pressure and stress in the subsurface. We have 1) developed on-line software that predicts reservoir pressure, 2) released data bases and material models that describe mudrock material behavior, and 3) developed workflows to predict stress in salt systems and thrust belts.

In the next 2 years, we will demonstrate the effectiveness of our new pore pressure and fracture gradient (PPFG) predictions. We will work with our sponsors to design blind tests based on new datasets(s). We will focus on transferring specific workflows that the sponsors can use in their PPFG efforts. Finally, we will continue the fundamental modeling and experimental work that underpins UT GeoFluids.

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

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2019 Meeting
Our 2019 Meeting will be held Feb 20-22, 2019. Registration and Hotel Information will be announced late Summer 2018.

2018 Meeting
Our 2018 Meeting was held Feb 21-23, 2018, with 65 Industry Members attending. View a list of attendees and talks/posters presented on the Annual Meeting page.

June 5, 2018: Shell hosted 'GeoFluids 2020: the next decade' where Peter Flemings, Jack Germaine, and Maria Nikolinakou presented the GeoFluids research proposal for the next ten years.

May 15-16, 2018: Peter Flemings and Maria Nikolinakou visited Pemex at Ciudad de Carmen, MX

May 3, 2018: Kris Darnell successfully defended his doctoral thesis entitled ‘Phase Behavior And The Interaction Of Multiple Gas Molecules In Hydrate-Dominated Geological Flow Processes’

April 24, 2018: Maria Nikolinakou presented at the monthly meeting of the San Antonio Geophysical Society (talk on pore pressure and stress in mudrocks bounding salt systems).

February 25 - March 2, 2018: Several members of the Flemings group participated in the Natural Gas Hydrate Systems Gordon Research Conference.

January 2018: Baiyuan Gao has gone to sea to perform research and participate in a workshop on the drillship Chikyu in the Nankai Trough.

January 11, 2018: Jack Germaine becomes a member of the ASTM board of directors (press release).

View all UT GeoFluids publications on the publications page

Nikolinakou M.A., Flemings P.B., Heidari M., Hudec M.R. 2018: Stress and pore pressure in mudrocks bounding salt systems; Rock Mechanics Rock Engineering;

Heidari, M., Nikolinakou, M.A., Flemings P.B., 2018 (in press). Coupling geomechanical modeling with seismic pressure prediction. Geophysics.

Gao, B., Flemings, P., Nikolinakou, M., Saffer, D., Heidari, M., 2018. Mechanics of Fold-and-Thrust Belts Based on Geomechanical Modeling. Journal of Geophysical Research,

Nikolinakou M.A., Heidari M., Flemings P.B., Hudec M.R., 2018. Geomechanical modeling of pore pressure in evolving salt systems, Marine and Petroleum Geology,

Flemings, P.B., Saffer, D.M., 2018. Pressure and Stress Prediction in the Nankai Accretionary Prism: A Critical State Soil Mechanics Porosity-based approach, Journal of Geophysical Research,