吉林省延吉盆地致密油气资源潜力研究

发布时间：2018-03-24 21:41

  本文选题：延吉盆地　切入点：致密油气　出处：《东北石油大学》2016年硕士论文

【摘要】：非常规油气资源在世界能源结构中扮演着日益重要的角色,被视为一种由常规能源向绿色能源转变过程中的过渡能源。目前致密气和致密油已成为勘探开发重点。在大庆外围发育的诸多中、新生代含油气盆地中,延吉盆地由于其所处的特殊的构造位置和具有较大油气资源远景,本文以致密油气为重点,对吉林省延吉盆地致密油气的资源潜力做较深入探析。延吉盆地的油气地质研究对当地具有经济意义。针对延吉盆地致密油气资源的评价,可以落实该区致密油气前景,指导下一步油气勘探方向。低勘探程度盆地致密油气资源评价是一个难题,国内外尚无明确方法规范。通过本次工作预期设计出合理有效的方法手段,对其它地区具参考价值,能够为延吉盆地的更深入研究,提供一定的帮助。以大地构造学、油气地球化学、储层地质学、沉积学、石油地质学等基础理论为指导,综合利用野外露头、测井、录井、岩心、地震等资料,对延吉盆地的生储盖特征进行详细研究,确定油气成藏的主控因素,综合利用生烃法、资源丰度和体积法三种方法计算得到目标有利区致密油气资源量。结果表明,延吉盆地主要烃源岩层位为大砬子组大一段、铜佛寺组铜三段、铜二段,有机质类型以ⅡA~ⅡB型为主,含少量Ⅲ型,大部分地区已进入生油门限,已基本处于成熟阶段;主要储层是龙井组、大砬子组和铜佛寺组内砂岩,以粉砂岩、细砂岩和中砂岩为主,储层物性总体以中孔低渗的砂岩孔隙型储层为主;致密油的保存受到盖层、构造活动、地层倾角以及水动条件影响;综合分析致密油气成藏规律,针对“有生有储无运有保”四原则条件筛选出有利区,最终计算延吉盆地4号、5号有利区油资源量为30×104t,气资源量为2.3×108m3。
[Abstract]:Unconventional oil and gas resources play an increasingly important role in the world's energy structure. It is regarded as a transition energy from conventional energy to green energy. At present, dense gas and tight oil have become the focus of exploration and development. In many Mesozoic and Cenozoic petroliferous basins developed in the periphery of Daqing, Due to its special structural position and great oil and gas potential, the Yanji basin is focused on dense oil and gas. The resource potential of dense oil and gas in Yanji Basin of Jilin Province is deeply analyzed. The study of oil and gas geology in Yanji Basin is of economic significance to the local area. The evaluation of dense oil and gas resources in Yanji Basin can realize the prospect of dense oil and gas in this area. The evaluation of dense oil and gas resources in low exploration degree basins is a difficult problem, and there is no clear method and standard at home and abroad. Through this work, a reasonable and effective method is designed, which has reference value to other regions. It can provide some help for the further study of Yanji basin. Guided by the basic theories of geotectonics, oil and gas geochemistry, reservoir geology, sedimentology, petroleum geology and so on, the comprehensive use of outcrop, logging, logging, etc. Based on the core and seismic data, the characteristics of reservoir, reservoir and cap in Yanji Basin are studied in detail to determine the main controlling factors of oil and gas accumulation, and to make comprehensive use of hydrocarbon generation method. The results show that the main source rocks in Yanji Basin are the first member of Dali formation, the third member of Tongfosi formation, the second member of copper formation, the other is the third member of Tongfosi formation, the third member of Tongfosi formation, the third member of Tongfosi formation, and the third member of Tongfosi formation. The main types of organic matter are type 鈪，

本文编号：1660172