塔里木盆地塔中低隆起构造演化对油气藏的控制  

Control on the Oil and Gas Reservoirs by the Structural Evolution of Tazhong Low Uplift in Tarim Basin

作　　者：解晨[1] 王保才[1] 尚雅珍[1] 王玉昌[1] 贺艳梅[1] 

机构地区：[1]中原油田分公司勘探开发科学研究院,河南濮阳457001

出　　处：《大庆石油地质与开发》2003年第2期4-6,共3页Petroleum Geology & Oilfield Development in Daqing

摘　　要：塔里木盆地塔中低隆起在其演化过程中经历了多期构造运动的改造,使该区经历了"4次拉张、4次挤压",对应于盆地4次大的沉降和抬升。其中加里东早、中、晚期和海西早、晚期运动是该区最重要的构造事件。受构造演化的控制,形成了该区加里东 早海西及燕山 喜山期2个重要的成藏期和多套有利的生、储、盖组合,同时对不同构造带不同层系油藏的形成、保存、破坏与调整有着同样重要的控制作用。从而形成该区石炭系东河砂岩块状、志留系层状油藏及沥青、奥陶系灰岩内幕及风化壳等多种油气藏。受构造运动影响,在塔中Ⅰ号构造带和北部斜坡带形成油气富集带。塔中低隆起西北围斜区构造相对稳定,油气破坏性小,具备形成大型油气田的石油地质条件,是下一步油气勘探的新领域和新方向。Tazhong low uplift in Tarim Basin has undergone modification of multiphase tectonic movement, which means four times of tension and four times of extrusion corresponding to the four times of major subsidence and rise And the early, mid and late Caledonian movement and the early and late Hercynian movement are the main structural events for the structure forming as well as oil and gas accumulation in this area So by the control of the structural evolution, two major reservoir forming periods of the Caledonian early hercynian and the Yanshan Himalayan have been formed as well as multi groups of source reservoir seal assemblage And the structural development has also controlled the forming, preservation, destruction and setting of the reservoirs of different series of strata in different structural belt Thus, many kinds of hydrocarbon reservoirs have been formed such as Carboniferous Donghe sandstone massive oil pools, Silurian layered pools and asphalt and Ordovician limestone interiors and weathering crusts And by the influence of the structural movement, oil gas accumulation has been formed in No 1 Tazhong structural belt and north slope zone So the structure in the northwestern periclinal area of tazhong low uplift is fairly stable and has the geologic setting to form large oil gas field, being the new area for next step of oil and gas exploration

关 键 词：油气藏 油气丰度 塔里木盆地 构造运动 油气富集带 地质条件 

分 类 号：P618.130.2[天文地球—矿床学] TE12[天文地球—地质学]