孤东油田七区西Ng5²⁺³砂层组流动单元类型划分及应用

Division and application of flow units in Ng5²⁺³ sand group of Gudong Oilfield

 冯佃亮¹ 傅强¹ 李林祥² 黄少雄¹ 楚志刚¹ 刘诗敏³

同济大学海洋与地球科学学院，上海 200092 中国石化胜利油田分公司孤东采油厂，山东 东营 257237 中国石油大学（北京）地球科学学院，北京 102249）

School of Ocean and Earth Science, Tongji University, Shanghai 200092, China Gudong Oil Production Plant, Shengli Oilfield Company, SINOPEC, Dongying 257237, China College of Geosciences, China University of Petroleum, Beijing 102249, China)

 渤海湾盆地济阳坳陷孤东七区西馆陶组Ng52+3砂层组经过长期开发，油层表现出高含水特征。为了研究高含水条件下的剩余油分布，文中应用聚类分析，优选有效厚度、流动带指标、含油饱和度等动、静态参数，判别流动单元类型，精细描述油藏储层特征分布。采用动、静态地质参数相结合的方法，可将该砂层组储层流动单元划分为4类，以Ⅱ，Ⅲ类流动单元为主，含油饱和度在流动单元划分中起主要作用。对经过长期开发后含水率普遍较高的油藏来说，划分储层流动单元，有利于确定下一步挖潜区域，对进一步开发剩余油具有重要现实意义。

 The reservoir characteristic of Ng52+3 sand group, 7th district, west of Gudong, Jiyang Despression, Bohai Bay Basin, is high water after a long time development. In order to study the distribution of remaining oil under high water condition, we chose static and dynamic parameters such as effective thickness, flow zone index, oil saturation to determine types of flow units and describe reservoirs using the method of cluster analysis. Studies show that the types of flow units can be divided into four categories, of which the main flow unit types are the types of Ⅱ and Ⅲ, and the types of Ⅰand Ⅳ flow units′ distribution are small; oil saturation plays a major role in the division of flow units. The division of reservoir flow units has important practical implication for tapping remaining oil regions in the oilfields under high water condition.

10.6056/dkyqt201605013