Integrated CO2 Storage and Brine Extraction

Predicting PVT data for CO2–brine mixtures for black-oil simulation of CO2 geological storage

Accurate modeling of the storage or sequestration of CO2 injected into subsurface formations requires an accurate fluid model. This can be achieved using compositional reservoir simulations. However, sophisticated equations of state (EOS) approaches used in current compositional simulators are computationally expensive. It is advantageous and possible to use a simple, but accurate fluid model f...

Experimental Study of Cement - Sandstone/Shale - Brine - CO2 Interactions

BACKGROUND Reactive-transport simulation is a tool that is being used to estimate long-term trapping of CO2, and wellbore and cap rock integrity for geologic CO2 storage. We reacted end member components of a heterolithic sandstone and shale unit that forms the upper section of the In Salah Gas Project carbon storage reservoir in Krechba, Algeria with supercritical CO2, brine, and with/without ...

Geologic Storage of CO2

Dynamic imaging provides an effective way to integrate previous time-lapse data with current data in order to estimate a current model. We present two methods useful for continuous dynamic reservoir and subsurface monitoring. The first method is a stochastic method for the inversion of geophysical data. It uses the ensemble Kalman filter (EnKF) that we demonstrate using time-lapse surface seism...

Monitoring CO2 storage in brine formations: lessons learned from the Frio field test one year post injection

Frio field test one year post injection Susan D. Hovorka , Shinichi Sakurai, Yousif K. Kharaka, H. Seay Nance, Christine Doughty, Sally M. Benson, Barry M. Freifeld, Robert C. Trautz, Tommy Phelps, and Thomas M. Daley ABSTRACT The Frio Brine pilot is a closely monitored, small-volume (1,600 tons), short-duration experiment using injection of CO2 into a high-permeability brine-bearing sandsto...

Geologic Storage of CO2