卡6井区油藏地质特征与开发对策的探讨

    Discussion on the geological characteristics and development strategies of the oil reservoir in Ka 6 well area

    • 摘要: 本文以卡因迪克油田卡6井区为研究对象,针对该井区油砂体展布与剩余油分布规律不明、开发效率低的问题,综合运用岩芯、测井、地震及生产动态等资料,系统开展油藏地质特征研究与开发对策探讨。明确研究区发育侏罗系齐古组、古近系紫泥泉子组及安集海河组3套油藏,储层以低孔低渗为主要特征,岩性多为砂砾岩、中-粗砂岩等,油藏类型以构造控制的岩性油藏和岩性控制的透镜状岩性油藏为主。通过动态数据分析判断井间连通性较差,结合剩余油潜力分析,提出针对性的补层射孔、压裂及新井部署建议,并优化井网与综合治理方案,为井区高效开发提供技术支撑。

       

      Abstract: This paper takes the Ka 6 well area of the Kaindike oilfield as the research object. In response to the unclear distribution of oil sand bodies and remaining oil in the area, as well as the low development efficiency, a comprehensive study of reservoir geological characteristics and development strategies is systematically conducted by utilizing core, logging, seismic, and production performance data. It is clarified that the study area develops three sets of oil reservoirs: the Jurassic Qigu Formation, the Paleogene Ziniquanzi Formation, and the Anjihaihe Formation. The reservoirs are primarily characterized by low porosity and low permeability, with lithologies mostly being glutenite and medium-coarse sandstone. The reservoir types are mainly tectonically controlled lithological reservoirs and lithology-controlled lenticular lithological reservoirs. Through dynamic data analysis, it is determined that the inter-well connectivity is poor. Combined with the analysis of remaining oil potential, targeted suggestions for layer perforation, fracturing, and new well deployment are proposed. Additionally, the well pattern and comprehensive management plan are optimized, providing technical support for efficient development in the well area.

       

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