|
|||||
|
|
| 塔里木盆地满西地区海相油气成藏规律 | |
| 引用本文： | 赵靖舟,田军,庞雯,廖涛,贾孝红,周勇,罗继红,周义.塔里木盆地满西地区海相油气成藏规律[J].海相油气地质,2002,7(1):7-11. |
| 作者姓名： | 赵靖舟 田军 庞雯 廖涛 贾孝红 周勇 罗继红 周义 |
| 作者单位： | 1. 西安石油学院;中国石油勘探开发研究院 2. 中国石油塔里木油田分公司 3. 西安石油学院 |
| 基金项目： | 国家“九五”重点科技攻关项目99-111-03-01-05专题，99-111-01-04-05专题研究成果 |
| 摘 要： | 满西地区是塔里木盆地海相油气藏的主要富集区之一,侧向运移是该区油气成藏的一个重要特征。该区油气藏的形成和分布主要受控干古隆起背景、东河砂岩优质输导层的展布以及中一新生代(尤其是晚喜马拉雅期)构造变动等三大因素。古隆起背景的存在是该区油气藏形成和富集的关键。研究表明,哈得逊古隆起及其斜坡上倾部位是满西地区油气聚集成藏的最有利地区,石炭系东河砂岩是油气富集的主要层位,东河砂岩地层圈闭和地层一构造复合型圈闭是油气藏形成的主要类型。认为满西地区大中型油气田的勘探应以哈得逊古隆起及其西斜坡为重点。 |
| 关 键 词： | 塔里木盆地 满加尔凹陷 油气藏形成 分布规律 油气运移 勘探方向 |
Regularity of Hydrocarbon Accumulation in West Manjiar Region, Tarim Basin |
|
| Zhao Jingzhou,Tian Jun,Pang Wen,Liao Tao,Jia Xiaohong,Zhou Yong,Luo Jihong,Zhou Yi.Regularity of Hydrocarbon Accumulation in West Manjiar Region, Tarim Basin[J].Marine Origin Petroleum Geology,2002,7(1):7-11. | |
| Authors: | Zhao Jingzhou Tian Jun Pang Wen Liao Tao Jia Xiaohong Zhou Yong Luo Jihong Zhou Yi |
| Institution: | Zhao Jingzhou Tian Jun Pang Wen |
| Abstract: | The west Manjiar region,which is located in the central Tarim basin,is a recently discovered area with rich marine hydrocar- bon.In this region,the lateral migration of hydrocarbon,rather than the vertical,is the major feature,which is different from the other parts of the Tarim basin.The research indicates that the direction of hydrocarbon migration is mostly southward in this region.The hydrocarbon accumulation in the west Manjiar is mainly controlled by the distribution of Hadexun paleo-uplift, the Carboniferous Donghe Sandstone drainage layer and the later tectonic activities of the paleo-uplift(particularly the late Himalayan orogeny).Despite of the fact that the Hadexun pa- leo-uplift has dipped northeastward since the late Himalayan orogeny (in Neogene),it dipped southwestward during the pre -Jurassic period.In addition, the Donghe Sandstone is mainly distributed in both the west and the south slopes of the Hadex- un paleo-uplift and pinched out northward and eastward.There- fore,hydrocarbon generated from the Cambrian-Ordovician source rocks was migrated northeastward at the critical mo- ment of the late Hercynian period.It is suggested that the Hadexun paleo-uplift and the upper part of its west slope are the most favorable areas for hydrocarbon accumulation,in which the Carboniferous Donghe Sandstone is the hydrocarbon- richest stratum where the major trap types are stratigraphic or stratigraphical/structural.The relative stableness of the Hadexun paleo-uplift is another favorable factor for hydrocarbon accumulation since the marine original hydrocarbon emplaced in traps during both the early(mostly in late Hercynian) and the later orogenies in the Tarim basin,while the late Himalayan orogeny that was quite intensive usually leads to the replace- ment and even destruction of the earlier hydrocarbon reser- voirs.Consequently, the Hadexun paleo-uplift and its west slope should be considered as the targets for petroleum explo- ration in the west Manjiar. |
| Keywords: | Tarim basin Manjiar depression Hydrocarbon accumulation hydrocarbon migration Distribution regularity |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |