现代地质Issue(5)：1042-1050,9.
塔里木盆地志留系-泥盆系层序界面的“四位一体”响应特征及其油气地质意义
“Four-in-One”Response Characteristic in Sequence Boundary Surfaces of Silurian to Devonian in Tarim Basin and Its Significance to Petroleum Geology
摘要
Abstract
Based on detailed observation of outcrops of basin rim and the typical drilling cores in basin,analy-sis of well logs and interpretation of seismic cross-section,the “four-in-one”response characteristic of critical sequence boundary surfaces during the sedimentary evolution of Silurian to Devonian in Tarim Basin are detailedly researched(including S/O sequence boundary surface,corresponding to T07 in seismic cross-section;sequence boundary surface between Upper Silurian and Lower-Middle Silurian,corresponds to T16 in seismic cross-section;sequence boundary surface between Upper Devonian and Middle Devonian,corresponds to T06 in seismic cross-section;sequence boundary surface between Carboniferous and Devonian,corresponds to T75 in seismic cross-section),in other words,characteristics of sequence boundary surfaces in outcrops,cores,well logs and seismic cross-section.The results show that the sequence boundary surfaces display unconformity in outcrops and cores,saltation in well logs and uplap,downlap or truncation in seismic cross-section.Afterwards, the petroleum geological significance of sequence boundary surface formation is detailedly elaborated as follows:(1 )the sequence boundary reflects the conversion of the basin nature in critical period;(2 )the sequence boundary is an important channel for oil and gas migration;(3 )the sequence boundary surfaces are beneficial to the formation of trap.The acquisition of the thesis research will provide an important foundational geological data for further oil and gas exploration of Silurian to Devonian in Tarim Basin.关键词
塔里木盆地/志留系-泥盆系/层序界面/四位一体/油气地质意义Key words
Tarim Basin/Silurian to Devonian/sequence boundary surface/four-in-one/petroleum geologic significance分类
能源科技引用本文复制引用
田景春,邵晓岩,张翔,林小兵..塔里木盆地志留系-泥盆系层序界面的“四位一体”响应特征及其油气地质意义[J].现代地质,2013,(5):1042-1050,9.基金项目
2011年高等学校博士学科点专项科研基金项目（20115122110003）。 （）
