利用油藏工程原理描述优势渗流通道的新方法  

A Method of Describing Preferential Flowing Path by Reservoir Engineering Principles

作　　者：汪庐山[1] 关悦[1] 刘承杰[1] 靳彦欣[1] 史树彬[1] 

机构地区：[1]中国石化胜利油田分公司采油工艺研究院,东营257000

出　　处：《科学技术与工程》2013年第5期1155-1159,共5页Science Technology and Engineering

基　　金：国家重大专项(2011ZX05011)资助

摘　　要：针对水驱砂岩油藏高含水期优势渗流通道普遍存在的问题,提出了应用油藏工程原理来识别优势渗流通道并计算其体积的方法。该方法是利用水驱特征曲线对优势渗流通道进行识别,并利用模糊聚类分析对优势通道窜流程度进行分类;然后利用剩余可采储量计算出优势渗流通道体积,进而计算出优势通道的渗透率和孔喉半径。利用VB语言编制了相应的软件,并用该软件对胜坨油田T143区块的优势渗流通道进行了识别和计算,通过其中三口井的示踪剂监测结果证实了该方法的准确性。Preferential flowing path is very common problem in water flooding sandstone reservoir for high water-cut stage, a method is proposed to identify and calculate preferential flowing path by reservoir engineering method. The method can identify preferential flowing path by water flooding characteristic curve, and cluster analysis is used to classify preferential flowing path degree. Then the preferential flowing path volume is calculated by the remaining recoverable reserves, the permeability and pore throat radius are obtained too. The software is developed by virtue of VB language, and it is used to recognize and calculate the preferential flowing path in the T143 block of Shengtuo oilfield, and this method is accurate by tracer explanation of three well among the block, the results provide a theory support for implementation of profile control of high water-cut reservoir.

关 键 词：优势渗流通道 水驱特征曲线 优势渗流通道体积 渗透率 孔喉半径 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程]