西南石油大学学报（自然科学版）2025，Vol.47Issue(1)：95-106,12.DOI:10.11885/j.issn.1674-5086.2024.08.28.05
深海水道在盐底辟型微盆地中的发育演化
Development and Evolution of Deep-sea Channels in Salt Diapir Typed Microbasins
摘要
Abstract
The unclear development and evolution characteristics of deep-sea channels in salt diapir typed microbasins hinders the exploration and development of deep-sea oil and gas and increases the difficulty of deep-sea oil and gas exploration and development.To solve such problems we made a case study on a Miocene salt diapir typed microbasin in the deep-water area of the continental margin of Angola,based on 3D seismic data and using RGB color blending technique,and analyzed the development and evolution characteristics and evolution model of channels in the basin.The study shows that the structural development of the microbasin controls the development and evolution of the deep-water channel.The channels Cl,C2 and C3 developed along the short axis of the microbasin mainly develop the model of overflowing the microbasin,while channels C4 and C5 developed along the long axis of the basin mainly developed the model of filling microbasins.Whether the channel fills or overflows in the microbasin is mainly related to the relationship between the active period of the salt structure and the formation and evolution of the channel,the relative magnitude of the erosion ability of the gravity flow in the channel to the active rate of the salt structure,the structural development characteristics of the microbasin and the angle between channel flow direction and tectonic trend.The channels C4 and C5 flow along the bottom of the structure under the action of gravity flow.With the increase of the accommodation space,the end of the channel gradually begins to lobe and form leaf deposits.关键词
盐底辟型微盆地/深海水道/发育演化/充填与溢出模式/水道朵叶化Key words
salt diapir typed microbasin/deep-sea channel/development and evolution/filling and overflow mode/channel leafing分类
能源科技引用本文复制引用
穆柏雨,赵晓明,齐昆,刘飞,李发有..深海水道在盐底辟型微盆地中的发育演化[J].西南石油大学学报（自然科学版）,2025,47(1):95-106,12.基金项目
四川省自然科学基金杰出青年科学基金(2024NSFJQ0065) （2024NSFJQ0065）
四川省国际科技创新合作项目(24GJHZ0465) （24GJHZ0465）
