--> Abstract: Lower Almond Formation Outcrops in Pine Canyon; Understanding and Predicting Reservoir Distribution and Geometry to Guide Infi; #90063 (2007)

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Lower Almond Formation Outcrops in Pine Canyon; Understanding and Predicting Reservoir Distribution and Geometry to Guide Infill and Exploitation Strategies in the Greater Green River Basin

 

Horn, Brian W.1, Keith W. Shanley2, William Hanson3, Meredith Rhodes-Carson4, James Hornbeck4 (1) BP, Houston, TX (2) The Discovery Group, Inc, Denver, CO (3) Consulting Geologist, Vernonia, (4) BP, Houston,

 

The Almond Formation (Mesaverde Group) in the Green River Basin is a well known hydrocarbon reservoir. While the majority of the production is from the upper Almond marine sandstones, a larger resource remains in the fluvial sandstones contained within the lower Almond coastal plain facies. The key to unlocking the lower Almond resource is to understand the presence, distribution, geometry, and dimensions of the sub-seismic, low net-to-gross fluvial strata. The value of realistic Lower Almond reservoir models will be realized when optimal well spacing or well density is determined.

 

The lower Almond Formation outcrops exposed along the northern plunge of the Rock Springs Uplift in Pine Canyon are an excellent place to examine the connectivity, distribution and character of these fluvial channel reservoirs. Analysis of this outcrop provides a data set that constrains reservoir models used to determine sandstone body connectivity and the drilling density that will optimize reserve growth in this interval. The distribution of architectural elements can also be used to calibrate 3D seismic attributes that may eventually be used to predict untapped lower Almond reserves.

 

AAPG Search and Discover Article #90063©2007 AAPG Annual Convention, Long Beach, California