Injection Method Research Of Polymer Flooding Pilot Area In Pu I3Laver, Xing Nan Development Zone

Based on geology information of well point in polymer flooding pilot area of Pu13layer in Xing Nan development zone, combine with research achievement in digitization sedimentary facies, apply PETREL geological modeling software to establish the structural and attribute model. According to the constrained condition of sedimentary micro-facies, combine with permeability, fluid properties, high pressure physical property of formation fluid and dynamic data of oilfield production, the agreement between the results of mathematic geology modeling and observation are improved.By using ECLIPSE, main development indexes such as basic well pattern, first infilled well patter, second infilled well pattern, water cut and accumulated oil production were simulated. In order to get a90%index coincidence rate, geological parameters like net thickness, porosity and initial oil saturation were checked and adjusted carefully and seriously, also the influence from fracturing, acid treating and water shut off was taken into account. Given a good degree of fitting, which agrees with project demands, with the help of ECLIPSE。Apply numerical simulation software, the fitting accuracy must satisfy with the engineering requirements, discuss the adaptability of high concentration pilot area in different injection mode, optimized combination of the best slug, incorporation with the transfusion characteristics of field reservoir polymer flooding and evaluate injection effect in pilot area by numerical simulation, provide a reference for the injection program design in pilot area. Determine a reasonable adjustment programs by development effectiveness analysis and provide the basis for the program to optimize the adjustment of the design and development of new polymer injection block.