Well Log Based Geomechanical and Petrophysical Analysis of the Bakken Formation

The detailed knowledge of reservoir properties in the first step in developing a reservoir. This paper discusses the derivation of reservoir and geomechanical properties from well logs in the unconventional reservoir of Middle Bakken in Williston Basin, ND. The study was performed on the middle member of the Bakken Formation in the Blue Buttes Field. Reservoir analysis consisted of determining the lithology and petrophysical properties such as porosity, permeability, water saturation, and shale volume calculations. We included XRD analysis for more precise analysis of the reservoir behavior. Geomechanical properties were calculated using existing correlations and relation. Those properties included the Young’s modulus, Poisson’s ratio, tensile strength, UCS, and pore pressure.