塔北隆起英买2区块缝洞型碳酸盐岩等效孔隙度模型定量描述研究  

Quantitative Description of Fracture-Cavity Type Carbonate Reservoir Equivalent Porosity Model in YM 2 Well Area,Tabei Uplift

作　　者：李国会[1] 赵峰 杨鹏飞[1] 刘应飞[1] 高莲花[1] 万效国[1] 

机构地区：[1]中国石油塔里木油田公司勘探开发研究院,新疆库尔勒市841000 [2]辉固地球科技(北京)公司,北京100004

出　　处：《中国石油勘探》2011年第4期20-22,3,共3页China Petroleum Exploration

摘　　要：缝洞型碳酸盐岩储层具有很强的非均质性,使用传统的井数据结合地质层位的建模方法无法有效进行储层建模,而常规地震属性提取手段又无法整合测井的信息进行定量储层描述。为了使用地震数据进行定量的储层建模研究,在明确地震反射特征的对应关系,精细解释储层发育段顶面层位的基础上,建立测井纵波阻抗与总孔隙度的相关关系,开展地质统计学反演,并得到了多个实现的高分辨率纵波阻抗体。使用反演纵波阻抗体和测井尺度下统计的纵波阻抗—总孔隙度关系进行协模拟,得到多个实现的等效孔隙度数据体。等效孔隙度体很好地综合了测井、地震两个尺度的信息,可以用于缝洞型碳酸盐岩储层空间非均质性的定量描述研究。提供了一种在缝洞型碳酸盐岩储层中使用地震反演技术进行定量储层描述的思路和方法。Due to the high heterogeneity of fracture-cavity type carbonate reservoir,it is difficult to build reservoir model effectively with the traditional method of combining well data and geological layers.However,the conventional seismic attributes extraction means can not be integrated with log data to describe reservoir quantitatively.In order to apply seismic data to quantitative reservoir modeling research,in this study,the correlation between log P-wave impedance and total porosity is built on the basis of clear correspondence between various seismic reflections and fine interpretation of the top horizon of reservoir,and geostatistical inversion is carried out to calculate multi-high-resolution P-wave impedance volume.Using the statistical relationship between P-wave impedance and total porosity to co-simulate can calculate multi-equivalent porosity volume.Equivalent porosity volume integrates the scale of log and seismic information very well,and can be used for the quantitative description study of fracture-cavity type carbonate reservoir spacial heterogeneity.This study provides ideas and methods for quantitative reservoir description in fracture-cavity carbonate reservoirs with seismic inversion technique.

关 键 词：地震反演 等效孔隙度模型 地质统计学反演 定量描述 塔北隆起 

分 类 号：P631.44[天文地球—地质矿产勘探]