Existing natural fractures often have a significant impact on both stimulation and production of oil and gas wells. Effective exploitation of unconventional reservoirs requires the understanding of the local tectonic history and the present day stress regime. Signal strength, high quality reflection seismic, microseismic imaging, and moderate structural complexity of the liquids-rich gas and tight oil Eagle Ford shale makes it an ideal place to study hydraulic fracturing in tight rocks. Microseismic monitoring results showed clear structural trends relating to reactivation of existing faults and fractures, and rock failure mechanisms determined through source mechanism inversion of events. These results provided critical information to the operator for optimizing the hydraulic fracture design.
Using Microseismicity to Understand Subsurface Fracture Systems and to Optimize Completions: Eagle Ford Shale, TX
Detring, John P., and Michael Grealy. "Using Microseismicity to Understand Subsurface Fracture Systems and to Optimize Completions: Eagle Ford Shale, TX." Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, Denver, Colorado, USA, August 2014. doi: https://doi.org/10.15530/URTEC-2014-1922814
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