Study On Optimization Of Layer And Well Pattern In Low Permeability Reservoir Of Block LI853

The geological reserves in low permeable layer occupied a mayor portion in production of Binnan plant,and formed an important position in the oil and gas exploitation.The main features of the low permeable reservoir in Binnan by: many reservoir types,deep buried depth,length of production well,thinner reservoir thickness.In production practice,producing energy falling soon and rapid production decline in practical production,due to the poor reservoir property and lacking of natural energy.In addition,the development of well spacing is so unadapted that difficult to establish an effective displacement.For this reason,the reservoir had a poorer effect of water flooding and the low level of reservoir development.LI853 block of Lijin oilfield is a glutenite reservoir occured along the edge of steep slope belt.The development is quite difficult because of its intricate geology,serious heterogeneity,and low productions.The block appears a lower degree of well pattern control and reserves producing,and a lower recovery efficiency.The block is a typical glutenite sediment aslo has certain representativeness.This article took LI853 block as the object of study,based on accurate geological research and geological model,combined with numerical simulation and reservoir engineering technology,established the reservoir simulation model.This article focuses on the study of the reasonable layers dividing,reasonable development well pattern,and reasonable well spacing.A number of schemes are designed to select the best.Based on the numerical model and reasonable developing parameter,This article studies the optimal of fracture scale,in order to improve the development level of low permeability reservoir.This article can provide some guidelines for improving the development level of low permeability reservoir,and could be a reference for the exploitation of the same type of reservoir.