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XX块是L油田二类油层聚合物驱推广的第二个注聚区块,针对区块平面及纵向非均质性严重,选井选层难度大的问题,应用精细地质研究成果及油井压裂前后试井曲线形态(包括表皮系数、渗透率、地层压力、流动系数等)以及压开层的变化规律进行研究。在综合利用各种动静态资料分析层间潜力的基础上,确定了XX块相应的调整技术,这些技术的应用为提高油井见效程度,改善聚合物驱效果起到了关键的作用。
XX block is the second polymer injection block of L type oilfield polymer flooding. In view of the serious block plane and longitudinal heterogeneity and the difficulty of selecting well layers, the application of fine geological research and well pressure The shape of well testing curve (including skin coefficient, permeability, formation pressure, flow coefficient, etc.) before and after cracking and the variation of pressure-releasing layer were studied. On the basis of comprehensively using various kinds of dynamic and static data to analyze the potential of interlayer, the corresponding adjustment technology of XX block was determined. The application of these technologies played a key role in improving the efficiency of oil well and improving the effect of polymer flooding.