Numerical Simulation Research on Energy Supplement of Low Permeability Reservoirs with Fractured Horizontal Wells

摘要

The fractured horizontal wells are widely used in many large oil fields to enhance oil recovery.Currently most of fractured horizontal wells were developed in elastic recovery.It is urgently needed to supply formation energy because of the fast production and pressure decline.In this paper,a five-spot model of horizontal wells was built based on the Jilin Oilfield geological data from the horizontal wells demonstration area.Compositional simulation were applied to study on the effectiveness of four development methods for three types of low permeability reservoirs with fractured horizontal wells and the impact of the distribution of the fracture was analyzed.Reasonable suggestions were proposed for three types of low permeability reservoirs from two aspects,development mode and fracturing design.This paper will provide some guidance for fractured horizontal well development.