--> Abstract: Reservoir Characterization, Modeling and Simulation of a Braided Channel Complex at Cambridge Cove, Nova Scotia; #90063 (2007)

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Reservoir Characterization, Modeling and Simulation of a Braided Channel Complex at Cambridge Cove, Nova Scotia

 

Mulcahy, Peter1, Yawooz Kettanah1, Lawrence Plug1, Hasley Vincent1, Grant D. Wach1 (1) Dalhousie University, Halifax, NS

 

Cambridge Cove represents a braided channel complex where the Triassic Wolfville Formation lies unconformably over the Carboniferous Horton Group in the Minas subbasin of the Fundy basin. 3-D exposures of bars in the intertidal zone have been preserved due to diagenesis caused by meteoric waters perched on the impermeable Horton shales. The section can also be viewed in 2-D along the 8-14m cliff face section. The strata comprise red to brown, coarse to fine grained sandstones, pebbly sandstones, conglomerates, minor shales and exhibits a fining upward trend.

Geological reservoir model data input included a detailed and high accuracy topographical GPS survey, outcrop descriptions, fault analysis, paleocurrent measurements, photographs, samples for petrographic analysis. These data were supplemented with aerial photographs, digital elevation models and an airborne LiDAR survey. The GPS survey consisted of 17,000 data points outlining the topography of almost every barform.

The data imported into Petrel™ consisted of survey data for the physical dimensions of the reservoir, geological data for reservoir characterization, and petrophysical data used for volume calculation and reservoir simulation. The reservoir model incorporated field data as well as analogue data from a similar braided channel complex. The braided channel complex was modeled with varying geological properties for different facies in the channels. After the creation of the reservoir model, and entry of fluid properties, a volume calculation of several factors including reservoir net volume, pore volume, and fluids in place were generated and an optimum depletion strategy was designed for the modeled reservoir.

 

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