辽河油田块状稠油油藏隔夹层描述与预测研究  

Study on Description and Prediction of Interlayer in Block Heavy Oil Reservoir of Liaohe Oilfield

作　　者：邱树立[1] 

机构地区：[1]中油辽河油田分公司,辽宁124010

出　　处：《当代化工研究》2017年第10期38-39,共2页Modern Chemical Research

摘　　要：辽河盆地稠油主要分布在西部凹陷,进入开发中后期急需开展蒸汽驱、SAGD、火驱等开发方式转换,而块状油藏成为首选。储层内隔夹层的发育情况直接影响开发方式的选择,对隔夹层的识别和描述具有重要的意义。辽河稠油块状油藏的沉积类型主要以水下扇为主,储层内隔夹层岩性以泥岩和泥质粉砂岩为主,夹层厚度较薄,分布不稳定,为识别与描述带来了困难。本次研究以取心井为基础,开展电性特征对比和岩心资料分析,建立隔夹层岩性和电性的划分标准,利用密井网资料,通过剖面追踪和建模预测,刻画出隔夹层的展布特征,为开发方式转换奠定地质基础。The heavy oil in Liaohe basin is mainly distributed in the western sag. In the middle and late stage of development, steam fooding, SAGD, fre fooding and other development mode transformation are urgently needed, and block reservoir is the frst choice. The development of interlayer in reservoir directly afects the choice of development mode, and is of great signifcance to the identifcation and description of interlayer. The sedimentary types of Liaohe heavy oil block reservoirs are mainly composed of underwater fans. The lithology of interlayer is mainly composed of mudstone and argillaceous siltstone. The interlayer thickness is thin and the distribution is unstable, which brings difculties for identifcation and description. Based on the coring wells, this study carried out the comparison of electrical characteristics and core data analysis to establish the criteria of lithology and electrical division of intercalated interlayer. Using the data of confned intercalation well, through profle tracking and modeling prediction, describes the distribution characteristics of the interlayer, laying a geological foundation for the transformation of development mode.

关 键 词：辽河盆地 稠油块状油藏 隔夹层描述 

分 类 号：P618.130.2[天文地球—矿床学]