马西洼槽中南部区带综合评价

马西洼槽是饶阳凹陷的主力生油洼槽,它为任丘潜山构造带、南马庄构造带、八里庄构造带提供油源。马西中南部剩余资源量较大,勘探目的层系多、勘探领域广,有较大勘探潜力。通过层序地层学的研究、构造精细解释和地质综合评价认为,马西断裂构造带为构造—岩性复合圈闭发育带,南马庄构造带为地层—岩性圈闭发育带。下第三系Es3段为最有潜力的勘探层系。通过多种地震属性和地震反演技术的应用以及地震相分析,落实了一批构造、岩性—地层圈闭,为老油田的勘探找到了接替战场。

Integrative evaluation of middle-south region in Maxi subsag.

The Maxi subsag is dominant oil-generative subsag in Rauyang sag,providing oil source for Renqiu buried-hill structural belt,Nanmazhuang structural belt and Balizhuang structural belt.The characters of large residual resource,multiple explored objective series of strata and broad explored fields in middle-south part of Maxi area made it large potential of exploration.It is considered by study of sequence-stratigraphy,fine structural interpretation and comprehensive geologic evaluation that the Maxi faulted structure belt is composite structure-lithologic traps-developed belt and Nanmazhuang structural belt is stratigraphic-lithologic traps-developed belt.The Paleogene Es_3 is most potential series of strata for exploration.Through application of multiple seismic attributes and seismic inversion technique and analysis of seismic phases,a group of structural and lithologic stratigraphic traps were defined,which found out a follow-up battlefield for exploration of depleted oilfield.