Abstract
In order to develop WUNAN Oilfield more efficiently, a numerical model was established for low permeability reservoirs with vertical fractured wells. Integral fracturing schemes were designed to optimize the rectangular five-spot well network in WUNAN Oilfield, and the results show that rectangular well network achieves better well productivity than square well network. Schemes with different well spacing and fracture parameters are designed by orthogonal method, with each scheme simulating for 10 years, the most economically beneficial scheme is the one with 300m well spacing, 125m row spacing, 60m half fracture length of water injection well, 105m half fracture length of production well, and 30μm2·cm fracture conductivity. Good production effect was achieved in field application, which provided technical support to a high efficient development in WUNAN Oilfield.
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