Experiment Scheme On Binary Compound Flooding Development In The East Second Section Of The Hai 1 Block

Hai 1 block is one of the main overseas river oil field blocks.Through the water injection development for many years,has entered a stage of "combination" development in2002,remaining oil distribution of scattered,the heterogeneity is strong,the influence of the well condition become worse year by year,39.2% of cases in the current recovery degree,rely on water flooding development means digging inner layer between the difficulty of remaining oil potential,improve recovery factor.The chemical flooding oil displacement characteristics is to improve the use of the planar and vertical oil,improve oil displacement efficiency.Hai 1 piece of injection-production well spacing,high degree of water flooding control,the use of,the well effect is obvious,all the studies show that the block is suitable for chemical flooding.This paper first carries on the block of fine reservoir description,as the geological foundation of chemical flooding study and application of various mathematical and computer methods,and quantitative description of reservoir in the reservoir model,external geometry,internal structure,reservoir parameters and fluid distribution.Then modeling and mathematical model software is used to establish reservoir geological model and the model of reservoir engineering,as well as to the comprehensive analysis of various of dynamic and static data,study the variation regularity of oil and water,and the water flooding development effect of the reservoir is evaluated,demonstrates the material basis and feasibility of chemical flooding development.By analogy method,the methods of numerical simulation of different well pattern well spacing under the condition of chemical flooding development effect has carried on the detailed argumentation,and develop series of strata combination principle,provide the basis for chemical flooding deployment,to achieve the benefit maximization.Targeted the end,the feasible development adjustment scheme.Eventually the injection-production well spacing 150 m five points area well pattern well spacing,the overall planning of chemical flooding 57 well groups,deployment of 57 wells,side drilling adjustment 1 wells.The block is expected to improve the recovery rate of 15.5%.This topic research to improve the effect of liaohe district development has the positive significance,to effectively carry out chemical flooding development in the future also has important reference and guidance value.