柴达木盆地北缘地区构造运动过程及油气藏类型

孙国强，司丹，王牧，申玉山，周飞，郝小梅，牛飞

doi:10.11764/j.issn.1672-1926.2012.05.826

天然气地球科学 >

2012 , Vol. 23 >Issue 5: 826 - 832

DOI: https://doi.org/10.11764/j.issn.1672-1926.2012.05.826

天然气地质学

柴达木盆地北缘地区构造运动过程及油气藏类型

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1.中国科学院油气资源研究重点实验室，甘肃兰州 730000；
2.中国石油青海油田勘探开发研究院，甘肃敦煌 736202;
3.中国石油东方物探西部事业部青海物探公司，甘肃敦煌 736202

孙国强(1977-)，男，河南洛阳人，助理研究员，博士，主要从事含油气盆地石油地质学及沉积储层研究. E-mail：sguoqiang@lzb.ac.cn.

收稿日期: 2012-04-24

修回日期: 2012-06-25

网络出版日期: 2012-10-10

基金资助

国家重点基础研究发展规划(“973”)项目“中国西部叠合盆地深部有效碎屑岩储层成因机制与发育模式”(编号：2011CB201104);中国科学院油气资源研究重点实验室开放基金 “咸化湖盆深部优质碎屑岩储层形成机理研究”(编号：KFJJ2012-05)联合资助.

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The Tectonic Kinematic Process and the Types of Oil and Gas Reservoirs in Northern Margin of Qaidam Basin

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1.Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics,
Chinese Academy of Sciences, Lanzhou 730000,China;
2.Institute of Exploration and Development, PetroChina Qinghai Oilfield Company, Dunhuang 736202, China;
3.Western Division,Bureau of Geophysical Prospecting, CNPC, Dunhuang 736202,C hina

Received date: 2012-04-24

Revised date: 2012-06-25

Online published: 2012-10-10

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摘要

以柴达木盆地北缘地区为例，探讨了构造运动学过程与油气藏形成的关系。研究认为柴达木盆地北缘地区中新生代板内构造体制下的盆—山耦合过程对油气藏的形成具有明显的控制作用，燕山期—喜马拉雅初期在挤压性应力场的作用下整体抬升，构造运动学过程主要以断裂来调整各个区域的应力平衡为主，由于构造位置和自身性质的差异，各个断块的隆升速度也存在差异，相对隆升较慢的断块区，逐渐发育形成压陷型断块坳陷。喜马拉雅中期构造运动使盆地周边褶皱断裂山系隆升并向盆地冲断推覆，在盆地新生代沉积层系中形成压性或压扭性褶皱和断层，为油气的运聚提供了十分有利的条件。

关键词： 圈闭类型; 油气藏; 构造运动; 柴北缘

本文引用格式

孙国强，司丹，王牧，申玉山，周飞，郝小梅，牛飞 . 柴达木盆地北缘地区构造运动过程及油气藏类型[J]. 天然气地球科学, 2012 , 23(5) : 826 -832 . DOI: 10.11764/j.issn.1672-1926.2012.05.826

Abstract

We discussed a few questions about the relationship between the tectonic kinematic process and the reservoir formation in northern margin of Qaidam basin.Through our research we believed that the dynamic mechanism of basin-mountain coupling system was the most important factor of the oil and gas accumulations in the Mesozoic-Cenozoic Era.The fault blocks of the northern margin of Qaidam basin were uplifted in Yanshan Period and early Himalayan Period.But the speeds were different because of their different tectonic location and nature.The fault block which uplifted slowly gradually turned into the down-warped block fault depression.Fault zones around the Qaidam basin were uplifted and thrusted into the basin in the late Himalayan Period,leading to the folding and faulting of the Cenozoic strata.But these structural characteristics were exactly conducive to hydrocarbon accumulation.

Key words： Types of traps; Oil and gas reservois; Ttectonic movement; Northern margin of Qaidam basin

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