边底水稠油油藏单砂体水淹规律量化研究  

Water Flooding Disciplinarian Study for Heavy Oil Reservoir with Edge Water and Bottom Water

作　　者：徐玉霞 葛丽珍 廖新武 沈明 李廷礼 陈勇军 周子钧 张志伟 

机构地区：[1]中海石油渤海油田勘探开发研究院,天津300452

出　　处：《科学技术与工程》2012年第25期6300-6304,共5页Science Technology and Engineering

摘　　要：渤海A油田是典型的边底水合采的稠油油藏,基本没有无水采油期。笼统注水后表现出注水井各层段吸水不均匀。注入水单层、单向突进问题比较严重,生产井的含水上升快,产量递减加快的特点。为进一步挖潜油田剩余油,全面掌握各单砂体的水淹状况是非常必要的。传统的油田小层平面水淹图的研究是将注水井的注入水劈分到对应的油井上。然而,对这种边底水能量较强的天然水水侵量的研究尚未见到报道。等值渗流阻力法应用到边底水水侵量的计算中,摸索出一套定量分析边底水稠油油藏单砂体水淹规律研究的方法。并将其计算结果与油田实际生产动态对比,相对误差较小,为海上同类油田水淹规律的研究提供了一种新的思路。Bohai A oilfield is a large offshore fluvial depositional reservoirs composed of meandering channels and multiple sands with complex oil/water systems. All wells were commingle produced during initial oilfield devel- opment, showing steep increase in water cut, low oil recovery, and fast production declining from sands supported by edge water or bottom water. In order to improve oil recovery, it is necessary to study the water flooding discipli- narian for single important sand. The traditional method was calculating the injection water spread to oil well, how- ever, the natural aquifer was not considered. The aquifer spread has been analyzed to oil wells by equivalent perme- ability resistance method, which was appropriate for heavy oil reservoir with edge water and bottom water. This meth- od is reasonable proved by reservoir dynamic, and also provides a new way for study in some other similar reservoirs.

关 键 词：水驱油田 单砂体 含水等值线图 水淹特征 剩余油 定量分析 

分 类 号：TE312[石油与天然气工程—油气田开发工程]