Primary oil recovery from fractured unconventional formations, such as shale or tight sands,
is typically less than 10%. The development of an economically viable enhanced oil …

Although well logs and core data show that there is significant oil content in Bakken shales,
the oil transport behavior in these source rocks is still not well understood. This lack of …

Shale reservoirs are characterized by high degree of heterogeneity and ultra-low matrix
permeability. Natural fracture (both macro and micro) systems are important to increase the …

Tight-oil reservoirs exhibit two characteristic behaviors that limit potential for improved
recovery:(i) limited fluid movement from the unfractured matrix limits the potential to sweep …

Understanding carbon dioxide (CO2) storage capacity and flow behavior in shale reservoirs
is important for the performance of both CO2-related improved oil recovery (IOR) and …

Oil production grew significantly from 0.2 million barrels per day (bpd) to 1.1 million bpd in
the Bakken petroleum system from 2009 to 2014. A large volume of associated gas (1.6 …

Carbon dioxide and hydrocarbon gases including methane, ethane, propane, and produced
gas (69.5/21/9.5 mol ratio of methane/ethane/propane) were used to recover oil from rock …

Although considerable laboratory and modeling activities were performed to investigate the
enhanced oil recovery (EOR) mechanisms and potential in unconventional reservoirs, only …

The impact of rock heterogeneity on the performance of cyclic gas injection is a key element
in tight oil reservoir modeling. Dependency of relative permeability on saturation history …

Rock core samples (51) from multiple lithofacies and depths were collected from 10 wells
located throughout the Bakken Petroleum System. Each 11.2 mm diameter core was …