逆掩断层控制油气运移聚集机理的探讨

APPROACH TO THE CONTROL OF THRUSTING OVER MIGRATION AND ACCUMULATION OF OIL AND GAS

谭敏

Tan Min

地质矿产部石油地质中心实验室

Institute of Petroleum Geology, Ministry of Geology and Minerals

逆掩断层是地壳构造运动的一种表现形式,在地质构造中广泛发育。在动力学机制上主要反映两种型式,即朱夏教授总结的板内变形七种机制中的两种:A式俯冲(A—Subduction)和基底滑移(Basement ramp)(朱夏,1982)。

This article makes an approach to the control of thrusting over migration and accumulation of oil and gas in light of the characteristics of the thrusts during their development.It is believed,through theoretical derivation and comparing the results of simulation experiments with the objective reality,that it is most possible for oil and gas to accumulate in places where the thrust surface becomes steeper.It is suggested that geologists should pay more attention to this belt in search of oil and gas deposits.This article focuses discussion on the control of thrusting over migration and accumulation of oil and gas,rather than the process of their migration or accumulation.It is hoped that this paper could provide useful informations for the search of additional oil and gas resources in thrust belts and for further advancing the works on new domains and new areas.

https://doi.org/10.11781/sysydz198402108