Normally pressured reservoirs have pore pressures which are the same as a continuous
column of static water from the surface. Abnormal pressures occur where the pore pressures …

Overpressure can be produced by the following processes:(1) increase of compressive
stress,(2) changes in the volume of the pore fluid or rock matrix, and (3) fluid movement or …

Petroleum migration pathways through a basin are determined by the three-dimensional
distribution of discontinuous sealing surfaces, which are usually parallel to bedding. The …

Overpressure is created by two main processes:(1) stress applied to a compressible rock
and (2) fluid expansion. Both processes are most effective in fine-grained lithologies, such …

The unconventional shale and tight formations, such as the Bakken in Williston Basin, are
becoming an important hydrocarbon sources since the development of advanced horizontal …

Gas generation is a commonly hypothesized mechanism for the development of high-
magnitude overpressure. However, overpressures developed by gas generation have been …

Abstract The Bakken Formation of the Williston Basin is a prime example of an
unconventionally produced petroleum system, with a low-permeability reservoir that requires …

Brine springs discharging from Devonian carbonates of the Western Canada Sedimentary
Basin have distinct water chemistry from brines in laterally equivalent units deeper in the …

The petroleum system concept was first applied in 1974 (Dow/Williams) to identify three oil
systems in the Williston Basin, and recent studies have expanded the number to at least …

Students, exploration geologists, and others are provided with a general idea of how the title
modeling and models work, what they can do, and what their limitations are. It also gives the …