Prototyping and testing a new volumetric curvature tool for modeling reservoir compartments and leakage pathways in the Arbuckle saline aquifer: reducing uncertainty in CO2 storage and permanence
Abstract
“Prototyping and testing a new volumetric curvature tool for modeling reservoir compartments and leakage pathways in the Arbuckle saline aquifer: reducing uncertainty in CO2 storage and permanence,” was signed with U.S. DOE on October 1, 2010. The project is collaboration between the Kansas Geological Survey (KGS) and its industry partner MVP LLC (a partnership between Murfin Drilling Company and Vess Oil Corporation).The project study area is located in Ellis County, Kansas.
Major results from this quarter include: (1) simulation and history matching of the pre-spud geocellular model; (2) completion of the petrophysical evaluation for the McCord-A 20H logs; (3) inclusion of the seismic inversion volume into the porosity modeling workflow; and (4) delivery of thin sections corresponding to the L. Hadley-4 core analyses, which will be used to constrain rock fabric-petrophysical relationships (i.e., facies model).
A numerical simulation model has been created for the Bemis Shutts Arbuckle formation to evaluate flux between fracture blocks and the applicability of directional wells in this style of reservoir. The simulation model focused on the fault block including or adjacent to the McCord-A 20H well. The model has been validated as a predictive tool by history matching individual well production history. The Leases in the study area have been on production from 1937, but the principal validation is based on well tests and historical water cut performance over the period September 1990 through December 2011. The history match is not a unique solution. Several suitable matches were derived under different values for the uncertainty parameters. The next phase of these models will be to analyze the effect of uncertain on the flux between fault blocks.
