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利用声波测井数据估算西湖凹陷地层剥蚀量
海洋石油
2001年 21卷 第3期
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Title
Quantitative Estimation of Erosion for Xihu Depression: Sonic Velocity Analysis
Authors
Shang Keyun
Jia Jianyi
Zhou Zuyi
Liang Lianxi
单位
同济大学海洋地质与地球物理系 上海 200092;
中石化新星石油公司上海海洋石油局 上海 200120
Organization
Department of Marine Geology & Geophysics, Tongji University;
Shanghai Offshore Petroleum Bureau, Star Petroleum Co., Ltd SINOPEC
摘要
声波测井数据揭示岩层声波时差的规律性的变化,根据这种规律性的变化可以定量求解地层曾经经历过的抬升剥蚀。作者对声波时差、利用声波测井数据求取地层剥蚀厚度的基本原理及计算方法作了简要介绍,并以东海西湖凹陷 3口钻井的实测声波测井数据为例,对这一方法的适用性进行了探讨。
Abstract
Xihu Depression in the East China Sea is characterized by a series of inverted anticlines which are of great significance for oil exploration in the region. Sonic velocity data from three wells are applied in order to estimate the amount of erosion caused by inversion. The result shows that the inversion intensify northward in the depression. The estimate of the amount erosion is similar to those obtained from fission track analysis.
关键词：
西湖凹陷;
声波测井;
ITT;
反转构造;
剥蚀量;
Keywords:
Xihu Depression;
sonic velocity;
ITT;
inversion structure;
erosion;
基金项目
国家自然科学基金(批准号:49876013);教育部资助优秀年轻教师基金计划联合资助项目
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