三江盆地致密油气形成条件及资源潜力分析

发布时间：2018-06-27 13:32

  本文选题：三江盆地 + 致密油气　； 参考：《东北石油大学》2017年硕士论文

【摘要】：致密油气作为非常规油气的一种,被世界各国逐渐重视,成为全球勘探开发的重点。中国现已成为继美国之后第二个大力勘探开发致密油气的国家。因此,我国对国内大中小盆地展开勘探评价,旨在解决日益增长的能源需求。三江盆地位于黑龙江省北部,地质构造错综复杂。本文在对国内外典型致密油气藏解剖分析的基础上,建立适合研究区的评价标准,具体分析三江盆地致密油气的形成条件,对盆地内资源潜力进行评价,落实研究区致密油气资源前景,为下一步的油气勘探指明方向。本文以大地构造、石油地质等基础理论为指导,结合钻井数据、岩心等资料,详细分析研究区的目的层位及生储盖特征,明确油气藏形成的主控因素。研究表明,三江盆地主力烃源岩层位是绥滨坳陷的城子河组和穆棱组,有机质类型以Ⅱ2~Ⅲ型为主,含少量Ⅱ1型,其中城子河组暗色泥岩有机质已普遍处于过成熟阶段,穆棱组已普遍处于成熟-高成熟阶段。另外,城子河组和穆棱组砂岩地层是盆地内主要储层。研究区含有城子河组、穆棱组两套主力盖层,岩性以泥岩为主。按照致密油气成藏四原则确定有利区,综合利用生烃模拟法、体积法和类比法三种方法计算研究区域致密油气资源量,最终得到三江盆地致密油资源量为2713×10~4t,致密气资源量为126.3×10~8m~3。
[Abstract]:As a kind of unconventional oil and gas, dense oil and gas has been paid more and more attention by many countries all over the world and become the focus of global exploration and development. China is now the second country after the United States to vigorously explore and develop dense oil and gas. Therefore, the exploration evaluation of large and medium basins in China is aimed at solving the increasing energy demand. The Sanjiang Basin is located in the northern part of Heilongjiang Province with complicated geological structure. On the basis of anatomical analysis of typical dense oil and gas reservoirs at home and abroad, the evaluation criteria suitable for the study area are established, the forming conditions of dense oil and gas in Sanjiang Basin are analyzed, and the resource potential in the basin is evaluated. Implementing the prospect of dense oil and gas resources in the study area and pointing out the direction of oil and gas exploration in the next step. Guided by the basic theories of geotectonics and petroleum geology, combined with drilling data and core data, this paper analyzes in detail the target horizon and the characteristics of source, reservoir and cap in the study area, and clarifies the main controlling factors for the formation of oil and gas reservoirs. The study shows that the main source rocks in Sanjiang basin are Chengzihe formation and Muling formation in Suibin depression. The organic matter types are mainly type 鈪，

本文编号：2074078