The Tectonic Evolution of Lateral Transitional Zone in Southern Jiyang Depression and Its Hydrocarbon Accumulation

详细信息   

• 责任者：Lao Haigang (Faculty of Geo-Resource and Information Collegue ; China University of Petroleum ; Dongying 257061 ; China) ; Chen Qinghua
• 刊名：Geological Review
• 出版年：2012
• 卷期：58(5)
• 关键词：构造带 ; tectonic zones ; 油气聚集 ; oil and gas accumulation ; 济阳坳陷 ; Jiyang Depression
• 页码：p.893-900
• 图表：3 illus., 1 table, 19 refs.
• 分类号：1003
• issnNo：ISSN0371-5736
• isbnNo：CN11-1952/P

摘要

Using interpretation results of high-precision three-dimensional seismic data, the lateral transitional zone associated with faults of different occurrence are analyzed, which are from different tectonic movements since the Mesozoic in southern Jiyang Depression, Bohai Bay Basin. The results show that the lateral transitional zone in NNE direction is composed of lateral compressive fold and lateral fault ramp in Indosinian movement. In Yanshanian movement, the lateral transitional zone is in NEE direction, which is assembled by the transfer fault and lateral uplift. The lateral transitional zone is NW, which is made up of the relay ramps and transfer zone in Himalayan movement. The different tectonic parts of lateral transitional zone possess unequal changes in evolution of superposition and migration respectively, creating different tectonic settings, which causes different migration and accumulation of hydrocarbon. Superimposed transitional zone can form composite zones of hydrocarbon accumulations. Migrated transitional zone can result in “sag-wide oil-bearing” hydrocarbon distribution.