锦33块综合地质研究及剩余油评价

发布时间：2018-01-20 03:50

  本文关键词： 三维地震解释 开发效果评价 综合地质研究 剩余油气分布规律　出处：《东北石油大学》2017年硕士论文　论文类型：学位论文

【摘要】：锦33块自1981年投产,依靠天然能量开发,开发目的层为兴隆台和热河台油层。受构造和沉积环境的双重影响,断块开发矛盾较为突出,兴隆台油层边底水能量充足,已进入特高含水开发期,剩余油高度分布,挖潜难度较大;热河台油层受沙三段浊积体沉积特征的影响则表现为低产能。为进一步挖掘断块剩余油气潜力,我们开展地层对比划分、构造描述、沉积相划分与地质、地震结合,研究油藏特征与油水分布特征。利用SeisWare解释系统对相关开发区域地震资料重新进行构造解释,进行沉积相特征及相标志分析,储层砂体厚度发育情况及砂体分布特征研究。结合沉积相发育、构造断层演化、储层发育分布预测、成藏条件规律研究等,进行综合地质评价,为下步挖潜部署提供有力的技术支撑。地层对比划分研究,资料来源于完钻至热河台油层及热河台以下地层的锦33井区及周边相关井的录井及测井完井资料,研究方法是利用完井资料,结合井区沉积相特征,利用构造发育不同部位井的完井录井资料及相邻井联通的构造剖面,建立北东南西向地层对比联通剖面,依据沉积旋忯规律并结合地层厚度,进行相关地层的对比划分。在采用常规的地质研究方法之上,我们结合Landmark工作站解释系统,利用钻井、录井、测井、试油等完井资料,针对该区域沉积发育背景复杂、目的层埋深落差大、构造特征认识不清、原地震资料精度低等困难,运用多角度研究方法对该区域地震地质资料进行了高精度沉积构造二次解释。根据对该区的剩余油分布规律研究,结合综合地质研究的认识,提出相应配套调整部署及挖潜方案,目前已取得较好的挖潜效果。
[Abstract]:Block Jin33 has been put into production since 1981, relying on natural energy development, and the development target layer is Xinglongtai and Rehetai oil layers. Due to the dual influence of structure and sedimentary environment, the contradiction of fault block development is more prominent. Xinglongtai oil reservoir edge and bottom water energy is sufficient, has entered the extremely high water cut development period, the remaining oil height distribution, tapping potential is difficult; The depositional characteristics of turbidite in the third member of Shahetai reservoir are characterized by low productivity. In order to further exploit the residual oil and gas potential of fault block, we develop stratigraphic correlation division, structural description, sedimentary facies division and geology. Seismic combination, reservoir characteristics and oil-water distribution characteristics, using SeisWare interpretation system to reinterpret seismic data related to the development region, sedimentary facies characteristics and facies indicators analysis. Combined with the development of sedimentary facies, structural fault evolution, reservoir development distribution prediction, reservoir formation conditions and so on, comprehensive geological evaluation is carried out. The data are derived from the logging and well completion data of the Jin33 well area and the related wells in the Jin-33 area and the surrounding wells which have been drilled to the Jehetai reservoir and the formation below the Jehe platform. The research method is to use the completion data, combined with the sedimentary facies characteristics of the well area, using the completion logging data of the wells in different parts of the structure and the structural profile of adjacent wells to establish the north-southeast and west-trending formation correlation correlation profile. According to the rule of sedimentary rotation and the thickness of formation, the correlation of related strata is divided. On the basis of the conventional geological research method, we use drilling in combination with Landmark workstation interpretation system. Well logging, logging, oil testing and other completion data are difficult to solve, such as complex sedimentary development background, large depth drop, unclear understanding of structural characteristics and low accuracy of original seismic data. Based on the study of the distribution of residual oil in this area and the comprehensive geological research, the high-precision sedimentary structure secondary interpretation is carried out by using the multi-angle research method. The corresponding adjustment deployment and potential tapping scheme have been put forward, and good results have been obtained at present.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE327
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本文编号：1446727