American Oil and Gas Reporter - September 2016 - 43

Reservoir Optimization

Geostatistical Inversion
Guides Development
In Complex Formations
By Haihong Wang, Kevin Chesser, Jeff Zawila,
Samuel Fluckiger, Gary Hughes, Preston Kerr,
Andrew Hennes, Howard J. Titchmarsh and Michael Hofmann

DENVER-The economics of unconventional plays can be
improved by placing horizontal wellbores to target facies
with the most favorable reservoir and geomechanical
properties. Recognizing that, an integrated multidisciplinary
approach was developed to reduce economic risk, facilitate
improved and faster decision making, and enable more
efficient and effective well placement in a tight,
stratigraphically complex Upper Cretaceous Sandstone in
the Powder River Basin.
The subsurface environment was known to exhibit
significant variations in lithofacies and reservoir properties,
both laterally and vertically. The objective was to provide an
accurate and synergized understanding of interwell
reservoir characteristics, quantitatively honoring all input
geoscience data and verifying through blind well testing.
That goal was achieved by utilizing geostatistical inversion
to predict lithofacies and reservoir rock/geomechanical
properties that honored data from multiple disciplines.

SEPTEMBER 2016 43



American Oil and Gas Reporter - September 2016

Table of Contents for the Digital Edition of American Oil and Gas Reporter - September 2016

Contents
American Oil and Gas Reporter - September 2016 - Cover1
American Oil and Gas Reporter - September 2016 - Cover2
American Oil and Gas Reporter - September 2016 - Contents
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American Oil and Gas Reporter - September 2016 - Cover3
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