Date of Award
Master of Science (MS)
This research employs an integrated geological modeling and numerical simulation method on an ultra-tight rock formation to determine if the surfactant imbibition process is a feasible enhanced oil recovery method. The ultra-tight rock formation studied was the Bakken Formation in East Mountrail County, North Dakota. A detailed geological model and numerical simulation model of the formation was established by various technologies, e.g. ArcGIS 10.4, Geologic Evaluation System (GES2016), and Computer Modeling Group (CMG) – STARS programs. All data was collected from actual field measurements and well-log readings of in place formations. The reservoir model provided a 500 ft. × 500 ft. grid resolution 3D model of the Bakken Formation with 20-layer vertical resolution showing the formation lithology and petrophysical property distributions. The analysis of the reservoir numerical simulation model was focused on Well Patten 1-27H #16799 from Hunt Oil Company. The results from the simulation produced a production history match in oil production and water cut histories along with forecasting results. An ethoxy-sulfate alcohol nonionic surfactant of 0.1% formulation was the basis concentration and was able to simulate an increase in production of Well # 16799 by about 800,000 ft3 of oil and an incremental oil recovery factor of 9.8% OOIP compared to using current hydraulic fracturing method. In summery the simulation of huff-n-puff surfactant imbibition produced similar results found in lab core sample testing. This outcome suggests that future field-testing of surfactant imbibition enhance oil recovery is needed in order to support or modify the results found in this research.
Detwiler, Stephen Lockwood, "Development Of A Geological And Oil Reservoir Numerical Simulation Model To Predict The Effectiveness Of Surfactant Imbibition Enhanced Oil Recovery For The Bakken Formation In North Dakota" (2018). Theses and Dissertations. 2197.