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98

Second White Specks Oil Project I

Pine Creek, AB

CDL, GDGC

2WSA

November 2011

Play(s):
N/A
2nd White Specks WillGreen-Edson Resource Oil
Fluid(s):
Light Oil
N/A
Area:
Pine Creek, AB
N/A

Two types of reservoir have been identified in the Second White Specks (2WS) study area. There is a coarser clastic component that forms a "conventional" reservoir where it is of sufficient thickness. Elsewhere, it is more dispersed, but still likely contributes some porosity and permeability to the system. The distribution of this reservoir can be mapped using petrophysics. There is also a fracture fabric that occurs in a specific non- to slightly calcareous, organic-rich facies. The occurrence of these fractures may be related to areas of overpressuring as defined by the hydrogeologic analysis. The structural analysis may also define areas that may have a greater potential for shear zones to develop. Stress mapping from frac data is effective in identifying regions of low minimum principal stress and low effective stress difference. Research has shown that low stress values have a strong correlation with higher production rates and recoveries. As well, seismic indicates the importance of wrench tectonics, N-S dextral shear and reactivation in 2WS sedimentation. The hydrogeology indicates that the majority of the study area is in an overpressured setting. The pattern of overpressuring matches the pattern of TOC, and, to a lesser degree, the temperature/Tmax map for the Second White Specks. It is speculated that areas of higher overpressuring are related to an increase in kerogen conversion to oil.