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目前萨北开发区北部过渡带主力油层聚合物驱油技术已经开始进行工业化区块应用,北部过渡带一条带东区葡一组储层厚度大、平面上井点间厚度差异大;平均有效渗透率差异较大;北过一条带一类油层油层水淹程度高,剩余油高度分散。在注聚初期所针对的需求和矛盾,达到提高采收率的最大化,必须对区块做出及时的分析及跟踪调整。本文主要通过对北北过一条带东块一类油层注聚初期存在问题的分析,反映出一类油层在聚驱开发过程中存在着注入压力低、聚驱层间矛盾突出等问题。本文阐述了针对北过一条带东块一类油层注聚初期表现的上述问题,而采取各项油水井调整措施,减少了一类油层注采矛盾,平衡了层间、层内的差异,取得了较好的开发效果。
At present, the polymer flooding technology of the main reservoir in the northern transitional zone of northern Saibei Economic Development Zone has started to be applied in industrialized blocks. The thickness of the reservoir in the eastern part of the northern transitional zone is large, and the difference in thickness between wells is large. The average effective permeability difference Larger; north over a reservoir with a high degree of flooding reservoir water, the remaining highly dispersed oil. In the initial stage of injection, the demand and contradiction, in order to achieve the maximization of recovery rate, must make timely analysis and follow-up adjustments to the block. This paper mainly analyzes the problems existing in the early stage of polymer injection in a reservoir with the East Block in the north and north. It shows that there is a problem of low injection pressure and prominent contradiction between the polymer flooding layers during the development of polymer flooding. This paper describes the above problems in the early stage of injection polymerizations of a reservoir with the East Block in the north, and adopts various adjustment measures for oil and water wells to reduce the contradiction between the injection and production of a class of oil reservoirs and to balance the differences between layers and layers and to obtain A better development results.