王集鼻状构造成藏特征及模式  

Reservoir-forming Characteristics and Its Pattern in Wangji Nose-like Structure

作　　者：彭国力[1] 李显路[1] 王三奎[1] 

机构地区：[1]河南油田分公司石油勘探开发研究院,河南南阳473132

出　　处：《石油天然气学报》2008年第2期439-440,443,共3页Journal of Oil and Gas Technology

摘　　要：泌阳凹陷是一个富油凹陷,北部斜坡是一个环绕凹陷沉积生油中心的长期抬起的沉积古斜坡,为油气运移主要指向,延伸至生油区的砂层是油气运移优势通道;北东向断层断距大、延伸长、封堵性好,为王集鼻状构造上的主断层,控制油气运移路线,横切油气运移"胡同"的北西向断层的相对封堵性控制成藏和含有高度。当聚集的油气柱高度达到断层所能封闭的油气柱高度后,油气从圈闭的顶部溢出,向对盘运移(或沿断层向上运移),并在新的断层圈闭内聚集。沿着油气运移路线,精细落实北西向断层,落实含油层系内各"胡同"的圈闭是下一步勘探的关键。Biyang Depression was an oil enrichment depression,and the northern slope was a paleo-depositional slope uplifting around source center for a long term,and was the main orientation for hydrocarbon migration.The sand body extending to the source area was the dominant migration pathway of hydrocarbon migration,and the NE fault with large fault throw,long extension and good seal was the dominant fault,controlled the oil migration path,cross cutting NW fault in oil migration alley.The hydrocarbon spills out on the top of fault,migrates toward opposing fault wall(or migrating upward along the fault),and accumulate in new fault trap,as the accumulated oil column height reaches the fault sealed height.The key for future exploration is to ascertain NW fault along oil migration path and alley-trap in oil-bearing series

关 键 词：运移优势通道 运移路线 圈闭 成藏特征 成藏模式 王集鼻状构造 

分 类 号：P618.13[天文地球—矿床学]