...SPWLA 59th Annual Logging Symposium, June 2-6, 2018 1 CALCULATED DETERMINATION OF VARIABLE WETTABILITY IN THE MIDDLE BAKKEN AND THREE FORKS, WILLISTON BASIN, USA Richard Merkel (Denver Petrophysics, LLC), Jeromy McChesney and Ken Tompkins (Liberty Resources, LLC) Copyright 2018, held jointly...

... core water saturation in the Middle Bakken and Three Forks formations. However, in the part of Lodgepole, Scallion, and Upper Bakken formations, our estimates of water saturation are closer to those obtained from NMR logs, which disagrees with the extremely high estimates obtained using...

..., especially of the fast-relaxing components. Diffusion measurements also play a unique role in the identification of the producible fluid having relaxation times of several tens of milliseconds. A comparison of 2D NMR T 1 - T 2 measurements on the Upper Bakken source rock with the Middle Bakken and Three...

... of unconventional reservoirs, such as the Bakken Shale and its adjoining formations, the Three Forks dolomite, Sanish mudstone (below), and Lodgepole limestone (above). The primary oil targets within the Upper Devonian Bakken complex include the Middle Bakken dolomitic sand/siltstone and the Three Forks dolomite...