摘要
川西坳陷聚源—金马—鸭子河地区经历了多轮次构造运动,构造叠加关系复杂,明确关键构造形成时期及特征是油气勘探面临的难点问题。利用地震、地质手段刻画了聚源—金马—鸭子河内部的褶皱、断裂形变特征,明确它们之间的几何特征差异性,解析其内部构造所处力学环境的差异性及形变机制,分析其内部形变关系,指出聚源、金马、鸭子河各构造段的主要形变期和古形变特征,为恢复古构造及演化、正确认识该区油气分布规律、指导油气勘探提供科学依据。
In Western Sichuan Depression, the Jvyuan-JinmaYazihe area experienced multiple structural movements, resulting in complex overlapping contact. So, to make clear the forming time and characteristics of the key structures is just a troublesome issue.For this study area, we analyzed the deformational features of both folds and faults by means of seismic and geological approaches, and then clarified their geometrical difference, thirdly interpreted both geomechanical difference and deformation mechanism, finally pointed out the deformation correlation and the key deformational phase and paleo-deformational features for different structural segments. These results provide a scientific evidence for recovering paleostructure and evolution, and adequately understanding oil and gas distribution rule in order to guide an exploration.
出处
《天然气技术与经济》
2018年第2期16-20,共5页
Natural Gas Technology and Economy
关键词
川西坳陷
构造演化
断裂特征
差异性
Western Sichuan Depression
structural evolution
characteristics of foults
difference
