【摘要】 长深1井的突破拉开了松辽盆地南部深层天然气勘探序幕,研究结果表明,火山岩为松辽盆地南部深层天然气的主要储层,具有较好的储集能力。松辽盆地南部目前钻遇火山岩的井有60多口,发育相带多、成分复杂、含气性差别比较大,迫切需要一套合适的火山岩识别方法。在深入研究火山岩地质模式及形成机制的基础上,通过物探新技术与地质理论有机结合、井震重磁多信息联合应用,系统研究了火山岩在地震剖面和测井曲线的特征,总结出一套适合吉林探区的火山岩识别描述方法。研究成果有效地指导龙深1井、龙深2井、龙深101井的部署,使英台断陷深层天然气勘探获得重大突破。更多还原

【Abstract】 Gas exploration in deep southern Songliao Basin is launched along with the breakthrough made in Changshen-1 well. Research results show that the volcanic rocks are the main gas reservoirs of the area and they have favorable reservoir capacity. Now volcanic rocks have been drilled in more than 60 wells of the area, featuring in multiple development phases, complex composition, and big difference in gas bearing. So systematic methods appropriate for volcanic identification are needed urgently. On the basis of in-depth study of the geological model and formation mechanism of volcanic rocks, through the combination of new geophysical exploration techniques and geological theories and using logging data, seismic data, gravitational data, and magnetic data, the characteristics of volcanic rocks in seismic profiles and logging curves are studied systematically, and a set of methods appropriate for identifying and describing volcanic rocks in Jilin exploration area are summed up. The research results may guide the deployment of Longshen-1, Longshen-2, Longshen-101 wells effectively. Great breakthroughs have been made in the exploration for deep gas in Yingtai fault depression.更多还原