查干花次凹查2区块火山机构识别及内幕结构解剖  

Volcanic mechanism identification and internal structure analysis of Cha2 block in Chaganhua sub-sag

作　　者：赵生嵘 ZHAO Shengrong(Changling Integration Project Team,Northeast Oil&Gas Company,SINOPEC,Changchun,Jilin 130062,China)

机构地区：[1]中国石化东北油气分公司长岭一体化项目团队,吉林长春130062

出　　处：《石油地质与工程》2022年第6期14-18,共5页Petroleum Geology and Engineering

摘　　要：针对查干花次凹查2区块中基性火山岩气藏埋藏深、岩性变化快、火山机构内幕复杂等特点,综合使用常规地震、混沌属性、灰度共生矩阵等多种属性融合的地球物理手段,形成平面上以“火山通道-火山口-喷发单元-火山机构及外围”、纵向上以“岩性岩相-旋回期次”为核心步骤的逐级火山机构内幕结构解剖技术。在平面上共识别出火山口5个,纵向上划分为3个期次,最终形成查2区块火石岭组中基性火山岩地质成藏模式,对国内其他盆地中基性火山岩气藏研究具有一定的参考意义。In view of the characteristics of deep burying,fast lithologic changing and complex internal structure of intermediate-basic volcanic rock gas reservoir in Chaganhua sub-sag represented by Cha 2 block,using various geophysical ways comprehensively with multi-attributes such as conventional seism,chaotic property and the GLCM,and form a gradually internal structure analysis technology of volcanic mechanism by‘volcanic vents-craters-eruption unit-volcanic mechanism and surrounding rock’on the surface and‘lithology and lithofacies-cycle and period’in the vertical direction.Five craters on the surface and divide three periods in the vertical direction have been identified,and finally the geology reservoir-formed model of intermediate-basic volcanic rock gas reservoir in Cha 2 block has been formed.It also has some guiding application for intermediate-basic volcanic rock gas reservoir research in other basins of China.

关 键 词：查干花次凹 火山岩 火山机构 火山通道 火山口 内幕结构 

分 类 号：P618.13[天文地球—矿床学]