天然气地质学

四川盆地高石梯―磨溪构造带震旦系灯影组的成藏模式

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  • 1.中国矿业大学,江苏 徐州 221008;2.中国石油勘探开发研究院廊坊分院,河北 廊坊 100083;3.中国石油勘探开发研究院,北京100083
张林(1969-),男,重庆忠县人,博士生,主要从事沉积、构造及天然气地质综合研究.

收稿日期: 2004-06-21

  修回日期: 2004-09-14

  网络出版日期: 2004-12-20

基金资助

“九五”国家科技攻关项目(编号:96-110-02-03)资助.

ANALYSIS OF FORMATION MECHANISM OF SINIAN DENGYING FORMATION IN GAOSHITI-MOXI STRUCTURE BELT IN SICHUAN BASIN

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  • 1.China University of Mining and Technology, Xuzhou 221008, China; 2. Langfang Branch of Research Institute of Petroleum Exploration and  Development, Langfang 065007, China;3. Research Institute of Petroleum Exploration and Development, Beijing 100083, China

Received date: 2004-06-21

  Revised date: 2004-09-14

  Online published: 2004-12-20

摘要

高石梯―磨溪构造带是四川盆地震旦系灯影组重要的勘探前景区。应用激光荧光、包裹体和同位素等技术判识了油气运聚信息,分析了灯影组圈闭演化及储层特征,建立了成藏模式。高石梯-磨溪构造带在加里东运动后形成了相对古隆起区,在印支、燕山和喜山早期仍为古隆起区,喜山晚期运动形成了大型圈闭。该区有溶洞型、孔洞型和裂缝型3类含气层,分为震旦系顶部和灯二段两套含气组合。该区烃源岩主生油气期为早中侏罗世,主生气期为早白垩世,是一个持续演化的背斜型气藏。因此,该区是油气运移指向区,是有利勘探区带。

本文引用格式

张林,魏国齐,汪泽成,吴世祥,沈珏红 . 四川盆地高石梯―磨溪构造带震旦系灯影组的成藏模式[J]. 天然气地球科学, 2004 , 15(6) : 584 -589 . DOI: 10.11764/j.issn.1672-1926.2004.06.584

Abstract

Gaoshiti-Moxi structure belt is the important exploration area of Sinian Dengying formation. The laser fluorescence, inclusion enclave and isotope technologies etc are used to obtain the gas migration and gather information. Though the trap evolvement and reservoir characters are analyzed, and reservoiring model of is  made. The Gaoshiti-Moxi was a palaeohigh area  after Caledonian movement, through the Indosian, Yanshanian and early Himalayan movement the palaeohigh area was  keeping. The belt is big trap after later Himalayan movement. There are three gas-bearing formation types of cavern, pore space and fractural interval, it can be  divided into two gas-bearing units that are Sinian top unit and dengying 2 formation unit. Combining with hydrocarbon simulation study, the main phase of oil  generation for source rocks is early-middle Jurassic, the main phase of gas generation is early Cretaceous, The Gaoshiti Moxi is evolving anticline gas  reservoir. The Gaoshiti-Moxi structure belt is favorable to migrate and assemble oil and gas, so it benefit to exploration.

参考文献

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