三塘湖盆地马朗凹陷石炭系火山活动和油气成藏的关系
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摘要
三塘湖盆地深层火山岩油藏有广阔的勘探潜力。以马朗凹陷石炭系两个主要勘探地层卡拉岗组和哈尔加乌组为例,从岩性、火山岩相入手,结合地震、测井数据分析油气成藏与火山岩空间匹配关系,探讨沉积盆地中火山岩对油气成藏的影响因素。该区火山活动影响范围大,地层分布广而深,就烃源岩和火山岩相的分布来看具有很好的一致性。根据火山岩形成的特殊性,对该区进行了油藏形成主控因素的分析。火山岩的非均质性、断裂影响着油气运移和聚集。油藏主要分布在深大断裂附近且有较好凝灰质泥岩盖层之下。火山岩储层的特殊性使得该区油藏控制呈现以生油岩和断裂控制为主。
Santanghu Basin has a vast exploration potential of deep volcanic reservoir.Taking two main exploration Malang depression Carboniferous strata group and Haerjiawu,Kalagang group for example,from the lithology,volcanic phase,combining seismic,logging,oil and gas reservoir data analysis and spatial matching between volcanic rocks,volcanic rocks in sedimentary basins of oil and gas accumulation factor are discussed.Impact of volcanic activity in this region a large range,and deep strata are widely distributed,source rocks and volcanic rocks on the distribution of the phase are in good agreement.According to the special nature of volcanic formation,controlling factors of reservoir formation are analyzed.The heterogeneity of rocks,fracture of hydrocarbon migration and accumulation,mainly be distributed tuffaceous shale cap.Particularity of volcanic reservoir in the area shows it has be controlled by source rock reservoir and the main fault.
Santanghu Basin has a vast exploration potential of deep volcanic reservoir.Taking two main exploration Malang depression Carboniferous strata group and Haerjiawu,Kalagang group for example,from the lithology,volcanic phase,combining seismic,logging,oil and gas reservoir data analysis and spatial matching between volcanic rocks,volcanic rocks in sedimentary basins of oil and gas accumulation factor are discussed.Impact of volcanic activity in this region a large range,and deep strata are widely distributed,source rocks and volcanic rocks on the distribution of the phase are in good agreement.According to the special nature of volcanic formation,controlling factors of reservoir formation are analyzed.The heterogeneity of rocks,fracture of hydrocarbon migration and accumulation,mainly be distributed tuffaceous shale cap.Particularity of volcanic reservoir in the area shows it has be controlled by source rock reservoir and the main fault.
引文
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2陈煦,倪联斌.三塘湖盆地马朗凹陷芦草沟组储层特征及裂缝分布规律.中国石油勘探,2007;12(2):15—19
3李光云,毛世权,陈凤来,等.三塘湖盆地马朗凹陷卡拉岗组火山岩油藏主控因素及勘探方向.石油地质,2010;(01):11—15
4伍新和,王成善,伊海生,等.新疆三塘湖盆地烃源岩特征成都理工大学学报(自然科学版),2004;31(5):513—515
5庞雄奇,李丕龙,张善文,等.陆相断陷盆地相一势耦合控藏作用及其基本模式.石油与天然气地质,2007;28(5):642—652
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