基于综合判识与时变数值模拟的高渗条带定量描述方法  

Quantitative Description Method of Relatively High-permeability Zone Based on Comprehensive Identification and Time-varying Numerical Simulation

作　　者：荆克尧[1] 佟颖[2] 佟震 JING Ke-yao;TONG Ying;TONG Zhen(Sinopec Research Institute of Petroleum Exploration and Development,Beijing 100083,China;Sinopec Research Institute of Petroleum Engineering Technology,Beijing 100101,China;Shengli Oil Production Plant of Sinopec Shengli Oilfield Branch Company,Dongying 257000,China)

机构地区：[1]中国石化石油勘探开发研究院,北京100083 [2]中石化石油工程技术研究院,北京100101 [3]中石化胜利油田分公司胜利采油厂,东营257000

出　　处：《科学技术与工程》2021年第10期3999-4004,共6页Science Technology and Engineering

基　　金：国家科技重大专项(2016ZX05011-001)。

摘　　要：中高渗砂岩储层经过长期注水开发,局部区域会出现高渗透条带,造成大量注入水低效无效循环,使注水效率降低,研究高渗条带定量描述方法可改善特高含水油田开发效果,降低油田开发成本。从特高含水期高渗条带表征参数入手,分析各参数对高渗条带的影响作用,应用综合判识方法建立高渗条带综合判识指数计算模型,在时变地质模型以及数值模拟历史拟合的基础上,计算各网格的综合判识指数,结合矿场密闭取心井及动态监测资料确定高渗条带判识标准,最终实现了特高含水期各级别高渗条带定量描述。典型井描述结果与取芯结果一致,方法可靠。描述结果可为特高含水开发期剩余油挖潜对策的制定奠定基础。When the medium-high permeability sandstone reservoir has been developed by long-term water injection, high-permeability zones will appear in some areas, resulting in a large number of inefficient or invalid loops of injected water. Research on the quantitative description method of high-permeability bands can improve the development effect of ultra-high water-cut oilfields and reduce oilfield development costs during high-water-cut periods. Based on the characterization parameters of high-permeability zones in high water cut period, influence of various parameters were analyzed in this paper. Then, a high-permeability zone comprehensive identification index calculation model was established by using the comprehensive identification method. By time-varying numerical simulation, high-permeability zone comprehensive identification index of each grid was obtained. After determining high-permeability zone identification criteria through closed coring well and dynamic monitoring data, different high-permeability zone was described accurately. The typical well description results are consistent with the coring results, and the method is reliable. The description can provide a foundation for the design of the remaining oil potential tapping measures in high water cut period.

关 键 词：高渗条带 特高含水期 综合判识 时变数值模拟 定量描述 

分 类 号：TE314[石油与天然气工程—油气田开发工程]