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
Received date: 2004-06-21
Revised date: 2004-09-14
Online published: 2004-12-20
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
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.
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