摘要
东海陆架盆地西湖凹陷晚中生代末期以来,经历了裂陷阶段、坳陷阶段和区域沉降阶段,形成了多个广泛分布的区域性不整合面(地震反射界面):T02,T42,T03 等,地层遭受了强烈剥蚀。以东海西湖凹陷为例,对声波时差法和镜质体反射率法求取地层剥蚀厚度的基本原理和计算方法进行了简要介绍,分析了地层剥蚀对油气成藏的影响,对该方法的适用性进行了探讨。
Since the final stage of Cretaceous, the Xihu Sag has undergone paar stage, depression stage and regional subsidence stage, developing several extensive surfaces of unconformity (seismic reflection (sequence):) T~~0__2, T~~4__2, T~~0__3, etc. This paper explains the basic principles and calculating methods of obtaining erosion amount using sonic velocity and vitrinite reflectance data of the Xihu Sag. It also analyses the influence of strata erosion on petrloeum accumulation, probing into the applicability of those methods.
出处
《石油实验地质》
CAS
CSCD
北大核心
2005年第1期90-93,共4页
Petroleum Geology & Experiment
基金
中国石油化工股份有限公司科技部项目(P00033)
关键词
声波时差
镜质体反射率
地层剥蚀
不整合面
西湖凹陷
东海陆架盆地
sonic velocity
vitrinite reflectance
strata erosion
unconformity
the Xihu Sag
the shelf basin of East China Sea
