Application of fracturing technology in low permeable reservoir in Bonan oilfield

In Bonan oilfield the 3rd formation of Shahejie formation,the physical property is poor,permeability is low,natural production capacity is low.In order to improve fracturing well incremental oil effect and efficiency,aiming at late stage reservoir plane and interlayer instaurate status and the characteristics of remaining oil distribution,it has been carried out the fracturing supporting technical improvement and optimization design.The application of the fracturing fluid,support agent materials and dosage optimization,fracturing design simulation technology,powder ceramic filter technology,high sand ratio fracturing technology and control sewing high fracturing technology has achieved remarkable results:average single well increase 7.7 t oil daily after old well fracturing,cumulative increased oil 1 596 t.Fracturing technology improvement and optimization has important significance to improve the Bonan oilfields fracturing effect and crude oil recovery rate and provided instructive reference to other low permeability reservoir.