川西龙门山构造特征与油气关系

基金项目: 中国石化科技开发项目(P03030)资助

Tectonic features and their relationship with petroleum in Longmen Mountain, western Sichuan Basin

1.
Research Institute of Petroleum Exploration & Production, Southwest Petroleum Branch Company, SINOPEC, Chengdu, Sichuan 610081, China
2. Chengdu University of Technology, Chengdu, Sichuan 610081, China

摘要: 龙门山构造变形始于印支期,经历燕山期和喜山期多次递进变形,构造变形时期具有由北向南、由西向东逐渐变晚,构造变形强度西侧强、东侧弱的特征.晚三叠世末期,随着秦岭洋的关闭,导致由北向南的侧向挤压,使得米仓山构造带开始隆升,与甘孜-理塘构造带俯冲加剧,剪刀式的挤压作用是龙门山形成的动力机制.龙门山构造带主要构造样式是推覆构造,可划分成三种构造体系,有利油气富集的构造样式是断展褶皱、断弯褶皱.
- 构造样式 /
- 构造演化 /
- 龙门山 /
- 四川盆地西部
Abstract: Tectonic deformation of the Longmen Mountain started during Indosinian,and developed during Yanshanian and Himalayan.The beginning time of deformation was later in the south and east than in the north and west.Deformation intensity was stronger in the west than in the east.At the end of late Triassic,due to the closing of the Qinling Ocean,lateral compression took place from north to south,resulting in the uplift of the Micang Mountain and the subduction of the Ganzi-Litang tectonic belt.Scissor compression is the main generation mechanism for the Longmen Mountain.The main tectonic style is nappe,which can be divided into 3 systems.Fault propagation and fault bend folds are favorable for petroleum accumulation.
- tectonic style /
- tectonic evolution /
- Longmen Mountain /
- western Sichuan Basin

[1]	刘树根,罗志立,赵锡奎,等.龙门山造山带-川西前陆盆地系统形成的动力学模式及模拟研究[J].石油实验地质,2003,25(5):432-438.
[2]	马永旺,杨尽.龙门山中段推覆构造的变形特征[J].成都理工学院学报,2001,28(3):236-240.
[3]	贾承造.中国中西部前陆冲断带构造特征与天然气富集规律[J].石油勘探与开发,2005,32(4):9-15.
[4]	王金琪.龙门山印支运动主幕辨析:再论安县构造运动[J].四川地质学报,2003,23(2):65-69.
[5]	李智武,刘树根,陈洪德,等.龙门山冲断带分段-分带性构造格局及其差异变形特征[J].成都理工大学学报,2008,35(4):440-454.
[6]	金文正,汤良杰,杨克明,等.川西龙门山褶皱冲断带分带性变形特征[J].地质学报,2007,81(8):1072-1080.
[7]	蔡学林,曹家敏,朱介寿,等.龙门山岩石圈地壳三维结构及汶川大地震成因浅析[J].成都理工大学学报,2008,35(4):357-365.
[8]	杨克明,朱彤,何鲤.龙门山逆冲推覆带构造特征及勘探潜力分析[J].石油实验地质,2003,25(6):685-694.
[9]	罗啸泉,李书兵,何秀彬,等.川西龙门山油气保存条件探讨[J].石油实验地质,2010,32(1):10-14.
[10]	何鲤,刘莉萍,罗潇,等.川西龙门山推覆构造特征及有利油气勘探区块预测[J].石油实验地质,2007,29(3):247-252.
[11]	杨克明.川西坳陷须家河组天然气成藏模式探讨[J].石油与天然气地质,2006,27(6):786-792.