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. Agenda, Speaker, Registration, and Hotel Information are available at 2019 Annual Meeting.

July 18, 2018: Baiyuan Gao successfully defended her doctoral thesis entitled ’Stress, Porosity, and Pore Pressure in Fold-and-Thrust Belt Systems’

July 9-10, 2018: Peter Flemings visited Repsol in Madrid, Spain

June 17-20, 2018: Maria Nikolinakou, Mahdi Heidari, and Yi Fang participated in the 52nd US Rock Mechanics Geomechanics Symposium (ARMA) in Seattle, WA.  Yi Fang was elected as member of the ARMA Future Leaders.

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’

View all UT GeoFluids publications on the publications page

2018
Day-Stirrat R.J., Bryndzia L.T., Schleicher A.M., Adriaens R., Hofmann R., Flemings P.B. 2018 (in press): Hydration behavior by X-ray diffraction profile fitting of smectite-bearing minerals in a Plio-Pleistocene mudrock from Eugene Island, Gulf of Mexico; Marine and Petroleum Geology; https://dx.doi.org/10.1016/j.marpetgeo.2018.12.008

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; http://dx.doi.org/10.1007/s00603-018-1540-z

Heidari, M., Nikolinakou, M.A., Flemings P.B., 2018. Coupling geomechanical modeling with seismic pressure prediction. Geophysics; http://dx.doi.org/10.1190/geo2017-0359.1

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, http://dx.doi.org/10.1029/2018JB015434

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, http://dx.doi.org/10.1016/j.marpetgeo.2018.03.013

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, http://dx.doi.org/10.1002/2017JB015025