沉积旋回的地球物理研究

GEOPHYSICAL STUDY OF SEDIMENTARY CYCLES

刘振峰 郝天珧 范国章

LIU Zhen-feng HAO Tian-yao FAN Guo-zhang

中国科学院 地质与地球物理研究所, 北京 100101 2. 杭州石油地质研究所, 浙江 杭州 310023

Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China 2. Hangzhou Institute of Petroleum Geology, CNPC, Hangzhou, Zhejiang 310023, China

沉积旋回性分析在地层学理论研究和石油勘探开发中有着重要的地位。沉积旋回级次的划分及旋回内部结构剖析是旋回性研究的基本内容。地球物理观测数据作为地层岩性、物性的反映,其中必然蕴含了大量与沉积旋回有关的信息。通过地球物理研究手段来分析提取这些信息,会大大提高沉积旋回研究的定量化水平,加深对这一现象的认识。沉积速率波动分析、频谱分析、时频分析等方法在此方面研究中的实践证明,沉积旋回的地球物理研究是行之有效的。

Analysis on sedimentary cycles is very important in the academic study of stratigraphy,petroleum exploration and exploitation.The principle used to grade cycles and the anatomy of inner cyclic structure are basic matters in the study of cyclicity.Geophysical data,as the representations of lithology and physical properties,embrace much information related to sedimentary cycles.Using geophysical methods to extract corresponding information will greatly promote the quantitative study of sedimentary cycles.Wave process analysis,spectrum analysis,time-frequency analysis and other geophysical methods have been applied to this field.Practice proves that,geophysics study is an effective means of sedimentary cycles research.

国家基础研究项目(G2000046701);国家自然科学基金资助项目(40074021);中国科学院知识创新工程重大项目(KZCX1-SW-18).

https://doi.org/10.11781/sysydz200403258