Thursday, 4 September 2014

Geological Expression from Seismic Data in Unconventional Shale reservoirs

The use of 3D seismic data and its contribution to the success of an unconventional play is dependent mainly on the ability to predict reservoir properties such as total organic content (TOC), fracture density (brittleness), thickness, porosity, and mineralogy. Recent advances in seismic acquisition and processing technologies and their application to the characterisation of unconventional reservoirs has led to the generation of multiple data volume types, including: partial stacks, azimuthal volumes, HTI, AVO and AVA(Z) volumes, elastic inversion volumes, to name but a few.

Full presentation...

A Fracture density volume shows the likelihood of fracture presence on the reservoir interval (Niobara shale, Wyoming). This Fracture density volume can be used to derive a facies classification, or to generate a map of prospective drilling locations or fracking challenges. (Data courtesy of US Department of Energy).

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