一种非均质油藏油水界面的简便计算方法:以冀东油田南堡1-1区为例  

A simple calculation method for water oil contact in heterogeneous reservoir:a case study of block Nanpu 1-1 of Jidong oilfield

作　　者：王英彪 李聪[1] 景佳骏 WANG Yingbiao;LI Cong;JING Jiajun(Jidong Oilfield Company,PetroChina,Tangshan 063200,China)

机构地区：[1]中国石油冀东油田分公司,河北唐山063200

出　　处：《中国矿业》2020年第S02期394-397,共4页China Mining Magazine

摘　　要：单一油藏中油水界面是一个起伏的曲面,单井油水界面深度的准确计算对于油藏精细开发有着重要意义。在现有油水界面确定方法的基础上,采用多种方法联合确定油水界面。选取油藏上油水界面已确定的井为参考井;基于受力平衡方程式,建立计算井与参考井相对油水界面深度关系表达式;利用毛管压力与储层物性的关系,将计算参数转化为油田开发中常用的测井解释孔隙度、渗透率。该方法计算所需参数少,实际应用证实了方法的计算精度较高,是一种计算非均质油藏油水界面深度的简便方法。The oil-water contact in a single reservoir is a undulating surface,the accurate calculation of the depth of oil-water contact in a single well is of great significance to the fine development of reservoir.Based on the existing methods of determining the oil-water interface,a variety of methods are used to jointly determine the oil-water contact.To select the well whose oil-water interface has been determined as the reference well,based on the stress balance equation,the expression of the relative oil-water contact depth between the calculated well and the reference well is established,relationship between capillary pressure and reservoir physical properties,converting the calculated parameters into the commonly used log interpretation porosity and permeability in oilfield development.This method needs few parameters for calculation,which is proved to be a simple method for calculating the depth of oil-water contact in heterogeneous reservoir.

关 键 词：油水界面 非均质油藏 受力平衡 毛管压力 储层物性 

分 类 号：TE31[石油与天然气工程—油气田开发工程]