松辽盆地南部火山岩储层特征  

Characteristics of Volcanic Reservoirs in Southern Songliao Basin

作　　者：苗长盛 徐文[2] 刘玉虎[2] 谢荣祥[2] Miao Changsheng;Xu Wen;Liu Yuhu;Xie Rongxiang(School of Exploration and Mapping Engineering,Changchun Institute of Technology,Changchun 130021,China;Northeast Oil and Gas Branch of SINOPEC,Changchun 130062,China)

机构地区：[1]长春工程学院勘查与测绘工程学院,长春130021 [2]中国石油化工股份有限公司东北油气分公司,长春130062

出　　处：《吉林大学学报（地球科学版）》2020年第2期635-643,共9页Journal of Jilin University：Earth Science Edition

基　　金：中石化重大科技项目(P19027-5)。

摘　　要：松辽盆地南部断陷层火山岩分布广泛,随着近年长岭南部中基性火山岩勘探获得突破,火山岩储层特征及形成机制研究再次成为热点。针对火山岩储层纵向多期次、横向多相带、非均值性强的特点,以松南多年勘探实践资料为基础,结合岩心、铸体薄片、扫描电镜和CT扫描等多种方法,从宏观、微观多尺度识别了火山岩储层3类12种有效储集空间类型,明确了"孔隙+溶蚀"和"孔隙+缝网"复合型储集空间的大规模发育是火山岩储层形成的关键,总结了火山机构-岩相类型、所处构造位置、暴露时间和到生烃灶距离对火山岩储层形成的控制作用。The volcanic rocks are widely distributed in the fault depression of the southern Songliao basin. After the recent breakthrough in the exploration of the middle-basic volcanic rocks in the south of Changling, the research on the characteristics of volcanic gas reservoirs has become the hot topic again. The volcanic reservoirs are characterized by vertical multi-periods and horizontal multi-phase zones with strong heterogeneity. Based on the data of several years exploration in the southern Songliao basin, many proxies have been applied to describe the characteristics of volcanic reservoirs from macroscopic to microscopic scales, such as core description, casting thin sections, and scanning electron microscope and CT scanning. Twelve kinds of effective volcanic reservoir types are recognized, and they are categorized into three groups. Among them,the widely development of two integrated reservoir types, "porosity + dissolution" and "pore + seam network", is the key point for the development of effective reservoirs in volcanic rocks. The controls of volcanic structure-lithofacies type, tectonic settings, exposure duration, and effects distance to hydrocarbon-generating source on the development of effective reservoirs in volcanic rocks are preliminarily summarized.

关 键 词：松辽盆地 火山岩 有效储层 溶蚀孔隙 裂缝 

分 类 号：P618.13[天文地球—矿床学]