稠油油藏边水侵入通道特征参数计算模型  

Quantitative Description of Edge Water Intrusion Channels in Heavy Oil Reservoirs with Strong Edge Water

作　　者：衣犀[1] 曹广胜[1] 张文博 张国青 YI Xi;CAO Guang-sheng;ZHANG Wen-bo;ZHANG Guo-qing(Key Laboratory of Enhanced Oil Recovery,Ministry of Education,Northeast Petroleum University,Daqing 163318,China;CNOOC Research Institute Ltd,Beijing 100028,China)

机构地区：[1]东北石油大学提高油气采收率教育部重点实验室,黑龙江大庆163318 [2]中海油研究总院有限责任公司,北京100028

出　　处：《数学的实践与认识》2023年第2期136-142,共7页Mathematics in Practice and Theory

基　　金：国家科技重大专项“低物性段改造酸化压裂技术研究”(2016ZX05012-002-006);东北石油大学国家基金培育基金“济阳坳陷泥页岩微观孔隙结构特征及流动机制研究”(2018GPYB-02)。

摘　　要：含边水的稠油油藏受边水侵入的影响,在开发过程中会出现边水指进现象致使油井过早水淹,高效稳定生产难以维持.准确的计算出边水侵入通道的体积和孔径大小是完成高效堵水必须解决的关键问题,采用油藏工程和数值模拟方法,分别建立见边水井的优势体积比、优势渗透率比和优势产液比三者之间关系,将两种方法得到的关系曲线进行耦合求解,得到边水侵入通道发育的体积和孔径大小,利用该方法,对BQ67区块主力油层13口见边水井侵入通道体积和孔径大小进行了实例计算,与现场示踪剂测试资料进行对比,符合率大于80%,表明该方法计算稠油油藏边水侵入通道体积和孔径大小的精度较高,且方法简便,易于操作和推广。Under the influence of edge water energy,the heavy oil reservoirs with strong edge water will have edge water fingering phenomenon in the development process,resulting in early water flooding and difficult to maintain efficient and stable production.It is a key problem to calculate the volume and aperture of edge water intrusion channel accurately.Reservoir engineering and numerical simulation methods were used to establish the relationships among the dominant volume ratio,the dominant permeability ratio and the dominant liquid yield ratio of the Wells on the edge,respectively.The relationship curves obtained by the two methods were coupled to solve,and the volume and pore size of the edge water intrusion channel were obtained.Using this method,the volume and pore size of the edge water intrusion channel of 13 water-invaded Wells in BQ67 block were calculated for example.Compared with the field tracer test data,the coincidence rate is more than 80%.It shows that this method has high accuracy in calculating the volume and pore size of edge water intrusion channel in heavy oil reservoir,and it is simple,easy to operate and popularize.

关 键 词：稠油油藏 边水侵入 特征参数 数学模型 数值模拟 

分 类 号：TE319[石油与天然气工程—油气田开发工程]