【摘要】 松辽盆地徐深气田具千亿方天然气储量规模,其中火山岩储集层储量占89.8%,但其勘探开发水平受火山岩气藏储集层识别和描述水平的制约。为此,通过多学科联合攻关形成了一套适用于火山岩气藏的储集层识别及描述技术。徐深气田有八大类21种火山岩岩性,测井可识别10种;火山岩岩相有5种,细分为15种亚相。有利储集层的岩相、岩性为:喷溢相上、下部亚相的气孔流纹岩,爆发相热碎屑流亚相的晶屑凝灰岩、火山通道相隐爆角砾岩亚相的角砾岩、火山通道相火山颈亚相的熔结角砾凝灰岩、侵出相中带和内带亚相的球粒流纹岩。储集层有效储集空间由气孔、溶蚀孔洞、裂缝有机组合构成。应用新建立的火山岩气藏储集层分类标准,结合试气试采动态特征和产能分类,采用动、静态结合的评价方法,对徐深气田火山岩储集层进行了综合评价,根据储量丰度、储集层发育状况、产能高低和认识程度将储量分布区分成一类、二类、三类区块。图16表8参10更多还原

【Abstract】 Geological reserves in the Xushen gas field have accumulated hundred billions of cubic meters,of which 89.8% is from volcanic reservoir.It is the bottleneck-difficulty of exactly describing volcanic reservoir that always restricts the exploration and exploitation of deep gas.Daqing Oilfield organized scientists and technicians of different levels to tackle the hard-nut problems during the period of Tenth Five-Year Plan.The article discusses a set of research techniques applicable to volcanic gas pool,including lithology identification and description,lithofacies identification and description, volcanics identification,reservoir space description,and comprehensive reservoir evaluation.The practical application of these technologies in the Xushen gas field is expounded.更多还原