断裂对油气的控制作用——以南堡凹陷为例  

Control of Faults on the Hydrocarbon: A Case Study in Nanpu Sag

作　　者：裴立新[1] 刚文哲[1] 高岗[1] 孟令箭[2] 李杰[2] 黄志龙[1] 

机构地区：[1]中国石油大学(北京)地球科学学院,北京102249 [2]中国石油冀东油田分公司,河北唐山063004

出　　处：《现代地质》2015年第4期930-936,共7页Geoscience

基　　金：国家科技重大科技专项"南堡凹陷油气富集规律与增储领域"(2011ZX05006-006)

摘　　要：断裂带油气垂向差异性聚集主要体现在两个方面:一是油气沿断层垂向运移时,成藏动力变化决定源外油气富集程度的差异;二是断裂活动可使源内外油气接力充注,导致源内外油气性质的差异,源外油气的成熟度略低于源内油气。根据断裂带油气的差异性聚集,可从已有的油气显示和储层物性变化,预测出断裂带纵向上油气分布规律。断裂组合样式对油气运聚成藏具有控制作用;平面上,平行式组合中近源处油气富集,远源处油气相对贫乏,而垂直式组合的近、远源处都可富集油气;剖面上,"梳子型"组合可向浅层提供较多的油气,"伞状型"组合向浅层提供的油气相对较少。Different vertical accumulation of hydrocarbon in the faults means different enrichment degree and different maturity of hydrocarbon. According to different vertical accumulation of hydrocarbon in the faults, ver- tical distribution of hydrocarbon can be predicted from the analysis on the found hydrocarbon show and variation of reservoirs. Combination pattern of faults has a control on the oil-gas migration and accumulation; parallel combination results in hydrocarbon enrichment near the hydrocarbon source kitchen and scarcity far from that in the plane, whereas vertical combination may result in hydrocarbon enrichment both near and far from that; Comb pattern transports more hydrocarbon to the shallow reservoirs and umbrella pattern transports less hydro- carbon relatively in the profile.

关 键 词：断裂控藏 断裂组合样式 成藏动力 南堡凹陷 

分 类 号：TE122.1[石油与天然气工程—油气勘探]