英台断陷火山岩气藏特征及有利区预测  

Characteristics and main control factors of volcanic gas reservoirs in Yingtai fault depression

作　　者：董亦思[1] 黄文彪 于兴河[1] 邓守伟[3] 卢双舫 孙婷婷[1] 

机构地区：[1]中国地质大学(北京)能源学院,北京100083 [2]中国石油大学(华东)非常规油气与新能源研究院,山东青岛266580 [3]中国石油吉林油田公司勘探开发研究院,吉林松原136200

出　　处：《东北石油大学学报》2015年第6期30-37,65,共9页Journal of Northeast Petroleum University

基　　金：国家自然科学基金项目(40972101);中央高校基本科研业务费专项资金项目(27R1421002A)

摘　　要：基于英台断陷深部火山岩气藏的烃源岩及储层特征,分析火山岩气藏源/储品质、耦合关系、输导体系和气藏特征等,研究成藏主控因素和成藏规律,预测研究区天然气勘探有利区.结果表明,英台断陷火山岩气藏存在下生上储和侧生侧储两种类型,其中下生上储型主要发育于大屯地区,主要以断裂为输导通道沟通沙河子组源岩,沟通源储的断裂控制气藏的分布;侧生侧储型主要发育于五棵树地区,成藏的关键在于火山岩储层能否在侧向上与营城组二段有效烃源岩直接相连,对接面处易于气藏的形成,且气藏规模大、丰度高,随着天然气运移距离的增加,气藏规模和丰度逐渐降低.该成果有助于认识英台断陷火山岩气藏及剩余资源的分布,确定勘探有利区.Although the discovery of volcanic gas reservoirs in the southern Songliao basin gained great breakthrough,the poor understanding of gas accumulation rules,compared with the exploration activity,may limit the further development of the deep gas reservoir in Jilin oilfield.Based on the quality and coupling relationship of source rock & reservoir,hydrocarbon migration system,gas reservoir characteristics,analysis on main controlling factors of gas accumulation,the distribution of remaining resources was predicted by summarizing the reservoir forming rules.Study shows that lower generatingupper reservoiring and side generating-side reservoiring types volcanic gas reservoirs was found in Yingtai fault depression.Lower generating-upper reservoiring type is mainly developed in the member 1of Yingcheng formation in Datun area,and based largely on fault to penetrate source rock and reservoir,which control the distribution of gas reservoir.The side generating-side reservoiring type is mainly developed in Wukeshu area.The key to this kind of gas reservoir accumulation is whether the volcanic reservoir connects directly with side effective source rocks.It is easier to form gas reservoir in contact surface,for not only its large scale,but also its high richness.With the increasing of migration distance of the gas,the scale and richness is reduced gradually.Investigating hydrocarbon accumulation characteristics and main control factors among different kinds of volcanic gas reservoirs will contribute to recognize the distribution of volcanic reservoirs and remaining resources.

关 键 词：火山岩气藏 主控因素 成藏规律 有利区预测 英台断陷 营城组 

分 类 号：TE122.2[石油与天然气工程—油气勘探]