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北东块一区萨Ⅲ4-10油层存在非均质性严重、渗透率级差大、吸水剖面不均匀、部分井存在大孔道等问题。为改善聚驱开发效果,利用新井水淹资料、油层大孔道解释成果、PI(90)资料、吸水剖面资料,在区块内优选了层内矛盾突出的50口注入井进行了注聚前深度调剖。通过调剖有效缓解了层内矛盾,扩大了波及体积,提高了的驱油效果,取得了较好的调剖效果。
There is a serious heterogeneity in Sa Ⅲ -4-10 reservoir in the North East block, with large permeability gradient, uneven water absorption profile and large pores in some wells. In order to improve the development effect of poly flooding, using the data of Xinjing water flooding, the interpretation results of the macropore of the oil layer, the PI (90) data and the water absorption profile data, we selected 50 injection wells with prominent contradictions in the block, Profile control. Through the profile control effectively alleviate the intra-layer conflicts, expanding the volume and improve the flooding effect, and achieved good profile control effect.