摘要
柴达木盆地阿尔金山东南缘地质历史上经历了多期构造运动,构造复杂。本文通过对断裂、构造样式等的研究表明,阿尔金山东南缘逆断层发育,形成向阿尔金山前散开、向盆内收敛的“帚状”分布;在这些压剪性断层控制下形成了一系列断鼻及多种构造样式,造成深浅层构造存在较大的差异。通过对烃源岩、储集层和盖层的综合分析评价认为,该区生储盖条件较好,侏罗系具有一定的生烃潜力,圈闭发育,油气藏类型丰富,有较大的勘探潜力。
The southeast margin of Aljin mountains in Chaidam basin experienced multi-period structural movement in geologic history,resulted in complex structures.It is showed in the paper by studying faults and structural style that abnormal fault developed in the southeast margin of Aljin mountains,which formed “brush” distribution that dispersed toward the piedmont of Aljin mountains and converged toward the basin;a series of faulted noses and multiple structural styles are formed under the controlling of the press-shear faults,resulted in large difference between deep and shallow structures.It is considered by integrative analysis and evaluation for source rock,reservoir and cap that the conditions of source rock,reservoir and cap are very good,the Jurassic has hydrocarbon-generated potential,traps developed,the type of reservoir is rich and great potentialities of exploration existed.The resulted conclusions have certain guided meaning to further carry out oil/gas exploration in the southeast margin of Aljin mountains.
出处
《石油地球物理勘探》
EI
CSCD
北大核心
2005年第2期233-237,242,共6页
Oil Geophysical Prospecting
