Bruce P. Marion

Integration of Multi-scale, Multi-domain Datasets to Enhance Microseismic Data Processing and Evaluation

Rigorous processing of microseismic data is essential and indispensable to derive confidently mapped hypocentral locations, as well as associated event attributes and source parameters. Integration with other borehole-based geophysical measurements is key in interpreting formation behavior and properties. In this study, we present the results of a microseismic monitoring campaign performed on multi-stage hydraulic fracturing treatments using two nearby, pseudo-vertical monitoring arrays composed of eight 3-component geophones each. We benefit from several borehole-based geophysical measurements, such as sonic logs, crosswell tomographic and attenuation profiles, and multi-calibration perforation points. Although, all these measurements take place in different frequency domains, together they very efficiently document the variations in space and time of the velocities, anisotropies, attenuations, and rock physics in the zones of interest and surrounding formations. Improved formation evaluation and interpretation during microseismic monitoring allows for improved estimation of reservoir quality and production in hydraulic fracturing treatments and could potentially prove useful in optimizing stage-by-stage stimulation volumes.