海拉尔盆地贝西地区古流体势及油气运聚特征研究  

Palaeo-fluid Potential and Characteristics of Hydrocarbon Migration in the Western Bei′er Sag of Haila′er Basin

作　　者：伍英[1] 

机构地区：[1]中石油大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《石油天然气学报》2014年第3期24-29,5,共6页Journal of Oil and Gas Technology

基　　金：国家自然科学基金项目(41030426)

摘　　要：通过地震趋势法恢复成藏期古埋深,根据等效深度原理利用声波时差资料恢复古压力,结合毛细管压力对油气运移的作用,对海拉尔盆地贝西地区成藏期流体势进行分析。结果表明:在贝西地区成藏期,油气从贝西北、贝西南次凹等流体高势区通过断层和不整合面向霍多莫尔、苏德尔特、呼和诺仁、贝西南斜坡等流体低势区运移形成构造油藏,通过断层和砂体向贝西南次凹边缘运移形成岩性-构造油藏,向贝西北次凹边缘运移形成构造-岩性油藏。The palaeo-buried depth of hydrocarbon accumulation was restored by suing seismic potential method,and based on the principle of equivalent depth,the palaeo-pressure was restored by using the data of interval transit time.In combination with effect of capillary pressure on hydrocarbon migration,fluid potential of accumulation in the western Bei′er Sag of Haila′er Basin was analyzed.The result shows that the structural oil pools are formed when the hydrocarbon is migrated by fault from high potential area in Northwest and Southwestern Bei′er to low potential area in the Huoduomoer,Suderte,Huhenuoren tectonic belts and Southwestern ramp region,lithologic-structural hydrocarbon reservoirs are formed in southwestern Bei′er Sag and structure-lithologic hydrocarbon reservoirs ARE developed on sideline of northwestern Bei′er with upper fluid potential.

关 键 词：海拉尔盆地贝西地区 古流体势 古埋深 古压力 毛细管压力 油气运聚 

分 类 号：P618.13[天文地球—矿床学]