A Study on the Distance between Fracturing and Production Wells in Low Permeability Oil Reservoirs with Three Dimensional Anisotropy and Directional Well Patterns
Aiming at fixing producer-injector spacing for fracturing deviated wells with row pattern in low-permeability reservoirs,this paper deduces the pressure and pressure gradient distribution formulas of typical well pattern units,focusing on the pressure variation patterns along the main line between injector and their impact on producer-injector spacing.The results show that anisotropy has a significant impact on the pressure distribution between injectors and producers;the pressure distribution between fractured vertical wells is uniform,and a larger producer-injector spacing can be accepted,which is about 3 times that of the unfracked situation.
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