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顺西三维碳酸盐岩储层“串珠”状异常反射识别及评价

石油实验地质

2011年 33卷第S1期

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Title

Recognition and evaluation of string beads anomaly reflection in 3D seismic profile of carbonate reservoirs,Shunxi area

作者

李玉兰沈向存楚宪波

Authors

Li Yulan Shen Xiangcun Chu Xianbo

单位

中国石化西北油田分公司勘探开发研究院,乌鲁木齐 830012

Organization

Research Institute of Petroleum Exploration & Production,SINOPEC Northwest Company,Urumqi,Xinjiang830011,China

摘要

通过对已钻井的储层特征分析,以及前人对串珠状异常反射岩溶缝洞型储层的成功经验以及岩溶缝洞型储层模型正演的结果为指导,应用均方根振幅体时间切片、振幅变化率和地震时间偏移剖面三结合的方法,在研究区中发现了一批岩溶缝洞型储层。通过构造图、古地貌等方法对串珠做了初步的划分评价。

Abstract

Based on analysis of reservoir characteristics of drilled well and successful experience of stu-dying string beads anomaly reflection on karst-fracture-cavity type reservoirs in Tahe oilfield,passelkaYSt-fracture-cavity type reservoirs had been discovered in the study area.The discovery was resul-ted from the forward modeling of karst-fracture-cavity type reservoirs,combining time slice of rootmean square amplitude,change rate of amplitude and seismic time migration section.The string beadsanomaly reflection was also classified and appraised by depicting the present structure and paleogeomor-phic characteristics and so on.

关键词：

上奥陶统; “串珠”状异常体; 均方根切片; 振幅变化率; 塔中;

Keywords:

Upper Ordovician; string beads anomaly reflection; time slice of root mean square change rate of amplitude; Tazhong;

基金项目

DOI

https://doi.org/10.11781/sysydz2011S1023