SEISMIC EMISSION TOMOGRAPHY-2: Seismic used to map permeability fields

This is the second of two parts on the use of seismic emission tomography (SET) to directly map reservoir permeability fields. The first part appeared last week (OGJ, Dec. 11, 2006, p. 37).Burlington Resources Inc., now part of ConocoPhillips, in conjunction with STRM LLC, has conducted a series of field studies to test the validity of the fluid pressure (Pf) wave geomechanical model using SET for direct mapping of the reservoir scale permeability field.Two studies were done: a tight gas sand discovery well in northern British Columbia and a frac in the Barnett shale in North Texas. Data for both studies were acquired and processed by MicroSeismic Inc., Houston, with further processing of...

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