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克拉玛依油田五东区上乌尔禾组油藏P2w32砂层为主力油层,纵向非均质性较强,主要发育3套碎屑岩储集层。由于储集层岩性及胶结程度的影响,主力油层取心井段岩心难以钻切成形,开发至今一直缺少室内动态敏感性实验资料。采用多种物模,对不同胶结类型和胶结程度的砂砾岩段进行了敏感性特征评价,并从储集层中粘土矿物类型、产状、相对含量以及储集层孔喉的发育特征等方面进行了敏感性伤害机理分析,为现场制定开发方案和调整措施提供了相关的理论依据。
The P2w32 sand layer of the Upper Wuerhe Group reservoir in the Wudong area of Karamay Oilfield is the main oil layer with strong longitudinal heterogeneity. There are mainly 3 sets of clastic rock reservoirs. Due to the lithology and the degree of cementation of the reservoir, the core of the main oil well coring section is difficult to drill and cut. So far, there has been no experimental data on indoor dynamic sensitivity. A variety of models were used to evaluate the sensitivity characteristics of glutenite fractions with different types of cementation and cementation. Based on the characteristics of clay mineral types, occurrence and relative content in the reservoir and the pore throat characteristics of the reservoir Carried out the analysis of the mechanism of the damage caused by the sensitivity, provided the relevant theoretical basis for the formulation of development plans and adjustment measures on the spot.