动静结合下储层流动单元研究——以孤岛油田M区新近系馆陶组为例  

Reservoir Flow Units for Dynamic and Static Combinations:Case study of Neogene Guantao Formation in block M,Gudao oilfield

作　　者：刘如昊 孙雨[1] 闫百泉[1,2] 张以根[3] 黄迎松[3] 王宁[3] 王鑫锐 LIU RuHao;SUN Yu;YAN BaiQuan;ZHANG YiGen;HUANG YingSong;WANG Ning;WANG XinRui(School of Earth Science,Northeast Petroleum University,Daqing,Heilongjiang 163318,China;Sanya Offshore Oil&Gas Research Institute,Northeast Petroleum University,Sanya,Hainan 572025,China;Exploration and Development Research Institute,SINOPEC Shengli Oilfield Company,Dongying,Shandong 257015,China)

机构地区：[1]东北石油大学地球科学学院,黑龙江大庆163318 [2]东北石油大学三亚海洋油气研究院,海南三亚572025 [3]中国石化胜利油田分公司勘探开发研究院,山东东营257015

出　　处：《沉积学报》2023年第4期1170-1180,共11页Acta Sedimentologica Sinica

基　　金：国家自然科学基金项目(41772149,41872158);黑龙江省自然科学基金项目(YQ2019D002)。

摘　　要：为了加深对储层非均质性的认识,以孤岛油田M区新近系馆陶组为例,开展了动静结合下储层流动单元研究。利用孔隙度、渗透率、流动带指数、泥质含量四种参数将储层划分为4类静态流动单元,并通过渗流阻力模型劈分各流动单元注水量,以流动单元单位厚度瞬时注入量作为动态流动单元的评价参数,实现流动单元的动态评价,并对动静两种方法下流动单元的差异特征进行分析。研究表明:注采井网的分布极大程度上控制了高级别流动单元的分布特征,注水量的增大一定程度上会使流动单元的级别升高,层内动静流动单元的差异主要受控于砂体韵律性导致的注水量不均。结合剩余油与动态流动单元的分布特征,可将储层划分为5种挖潜级别,其中Ⅰ级为主要剩余油挖潜区域,Ⅱ级为低潜力高耗水部位。To improve the understanding of heterogeneous reservoirs,a study of the static and dynamic reservoir flow was conducted in block M of the Gudao oilfield(Neogene Guantao Formation).Static flow in the reservoirs were subdivided into four types:porosity,permeability,flow zone index and shale content.Water injection in each flow unit was assessed using a seepage resistance model.Dynamic flow was evaluated in terms of instantaneous injection of the flow per unit thickness.The difference between the static and dynamic methods was analyzed.It was found that the distribution of injection-production wells largely influences the high-level flow units.Increasing water injection increases oil flow to a certain extent.The difference between static and dynamic flow in individual layers depends largely on the unevenness of the water injection due to sand body rhythm.The reservoir was divided into five potential tapping levels by combining the distribution of the remaining oil and dynamic flow units:level Ⅰ is the main potential tapping area of remaining oil;level Ⅱ represents low oil potential and high water consumption.

关 键 词：流动单元 渗流阻力 剩余油分布 孤岛油田 馆陶组 

分 类 号：P744[天文地球—海洋科学]