This paper presents a hydraulic fracture treatment design optimization scheme which integrates a hydraulic fracture geometry model, a production model and an economic model. The hydraulic fracture geometry model is used to determine the final fracture geometry and select the treatment parameters for a given stress and reservoir condition. Production from the treated well is estimated for pseudo-steady state condition using a model equivalent to a compositional simulator. A genetic-evolutionary optimization algorithm is used to obtain the optimum treatment parameters for maximum production or NPV. The integrated model has been used to investigate different field scenarios of a multiwell gas-condensate reservoir, including optimization of well locations and hydraulic fracture treatment parameters for any well type, achievement of target production and maximization of NPV with simultaneous minimization of the associated treatment costs.

Keywords:
production model, well 2, fracture half length, optimization problem, upstream oil & gas, condensate reservoir, well 1, treatment cost, objective function, application
Subjects:
Hydraulic Fracturing, Fluid Characterization, Reservoir Simulation, Unconventional and Complex Reservoirs, Information Management and Systems, Phase behavior and PVT measurements, Gas-condensate reservoirs
Copyright 2003, Society of Petroleum Engineers
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