Hydraulic Fracture Monitoring to Reservoir Simulation: Maximizing Value
Hydraulic fracture monitoring with microseismic mapping is now routinely
used to measure hydraulic fracture geometry, location, and complexity,
providing an abundance of information that can be essential to optimizing
stimulation treatments and well completions. Although microseismic mapping has
added significant value in many different environments, we have yet to fully
utilize microseismic data. Significant details can be extracted from
microseismic measurements that, when integrated with other information, can
improve the characterization of both the reservoir and the hydraulic fracture.
In addition, microseismic data has yet to be quantitatively and routinely
utilized in reservoir simulation, which is the key to optimization.
Geological and geophysical data and wellbore logs can be combined with
newly-developed complex fracture propagation models and reservoir simulation
models. These models are calibrated using microseismic measurements and
production dataclosing the loop from microseismic mapping to simulation.
The combination of microseismic measurements and complex fracture modeling with
sophisticated geological descriptions of pre-existing natural fractures can be
used to evaluate existing and predict future well performance in complex
shale-gas reservoirs. The application of calibrated complex hydraulic fracture
and reservoir simulation models provides more reliable forecasts of well
performance resulting from various hydraulic fracture designs and completion
scenarios, allowing the selection of the most economic strategy.
The optimization process includes a detailed workflow to efficiently
integrate the large amount of information and modeling results into a coherent
work product. This includes the integration of advanced processing and
geomechanical interpretations of microseismic data with newly developed complex
hydraulic fracture models that significantly improve the application of
microseismic measurements. An example illustrates how HFM can be taken from
event locations to production forecasts, showing how the capability to
integrate geophysics, geomechanics, hydraulic fracture mechanics, and reservoir
simulation can result in significant economic benefits.