Alan Alexeyev

Date of Award

January 2017

Document Type


Degree Name

Master of Science (MS)


Petroleum Engineering

First Advisor

Mehdi Ostadhassan


The Bakken Formation is an unconventional reservoir in North Dakota’s Williston Basin. A complex lithology of the producing formation requires a better understanding of its rock properties and mineralogy, as well as further analysis such as geologic modelling and reservoir simulation. It is important to analyze its properties to manage production efficiently.

The work started with analyzing petrophysical properties of the Middle Bakken. It included porosity, permeability, water saturation, shale volume, and lithology. Individual logs were obtained from a database and then run through well logging software to obtain the properties. Available core samples were analyzed using XRD. Construction of geologic model was based on well log information. The model is needed in order to see the properties distribution and prepare it for reservoir simulation. The model was built using geostatistical analysis. Reservoir simulation was done in order to predict the performance of the field.