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剩余油潜力区的分布一直是油田开发过程中的焦点问题,就目前大庆油田开发的现状来看,剩余油潜力区除了主要分布在主力油层以外,也存在于一些非主力油层内,二类油层就是其中具有代表性的油层.与主力油层相比,二类油层不论在纵向上还是在平面上非均质性都比较严重,给剩余油的挖潜带来了较大难度,而采用水平井挖潜二类油层剩余油也是目前一些油田采用的开采方法,因此对于二类油层剩余油潜力区计算方法的研究就成为了首先要解决的问题.选用了北一区断东试验区二类油层中典型沉积单元进行了剩余油分布状况的剖析和潜力区界限的建立,进行了水平井挖潜二类油层典型沉积单元潜力区计算方法的研究,对油田二类油层实际开发方案的制定具有一定的指导意义.
The distribution of remaining oil potential areas has always been the focus of the oilfield development process. According to the current status of Daqing oilfield development, the remaining oil potential areas are mainly located in some non-main oil layers besides the main oil layers. Is one of the representative of the reservoir.Compared with the main reservoir, the two types of reservoirs both in the vertical and in the plane are more serious heterogeneity, to the residual oil to tap the potential to bring greater difficulty, and the use of horizontal wells to tap The remaining oil of the second type is also the mining method adopted by some oil fields at present, therefore, the research on the calculation method of the remaining oil potential of the second type of oil layer becomes the first problem to be solved. Sedimentary unit analysis of remaining oil distribution and the establishment of potential area boundaries, horizontal wells to tap potential reservoir type two typical reservoir potential area calculation method for the actual development of the second type reservoir development plan has some guidance .