低效、无效循环层测井识别描述方法  

Low and non-effective water circulation layers identification and description method by well logging

作　　者：付志国[1] 杨青山[2] 刘宏艳[2] 杨小明[2] 刘卫丽[2] 

机构地区：[1]成都理工大学油气藏地质及开发工程国家重点实验室,四川成都610059 [2]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《大庆石油地质与开发》2007年第3期68-71,共4页Petroleum Geology & Oilfield Development in Daqing

基　　金：中国石油天然气股份有限公司"大庆喇萨杏油田特高含水期水驱优化调整配套技术"项目(040115)部分成果

摘　　要：如何识别描述低效、无效循环层已经成为油田特高含水期水驱高效开发的一个重要问题。通过喇嘛甸油田相渗实验资料、岩心分析,确定了应用驱油效率判别低效、无效循环层的新思路。并选用高分辨率声波、补偿密度、高分辨率深侧向、微球等测井曲线,以测井解释理论为指导,应用数理统计方法,建立了喇嘛甸油田萨尔图油层孔隙度、渗透率、束缚水饱和度参数测井解释经验方程,实现了应用常规测井方法定量解释油层驱油效率,识别描述低效、无效循环层的技术方法。为大面积快速识别低效、无效循环层,定量求取低效、无效循环层的各项地质参数提供了一个新的技术手段。How to identify and describe low and non -effective circulation layers is one of important challenges of high efficient oilfield development in ultra - high water cut stage. With the help of experimental data of relative permeability curves and core analysis of Lamadian Oilfield, this paper develops a new method to identify low and non - effective water circulation layers by oil displacement efficiency. By means of selecting high resolution sonic, compensated spectral density, high resolution deep investigation laterolog and micro - spherically focused well logs, and guided by well logging interpretation theory and applying mathematical statistics method, empirical equations of porosity, permeability and irreducible water saturation logging parameters interpretations are established for Saertu reservoirs of Lamadian Oilfield. Technical methods for quantitatively interpret oil displacement efficiency, identifying and describing low and non - effective water circulation layers is innovated and developed by conventional well logging methods, providing a new method for quickly identifying low and non -effective circulation layers in a large area, quantitatively calculating and obtaining all geologic parameters in these layers.

关 键 词：低效 无效循环层 测井解释 驱油效率 

分 类 号：P631.811[天文地球—地质矿产勘探]