陈2区块水驱优势通道分布模拟与体积计算

Distribution simulation and volume computing for dominant channel of waterflooding in Chen2 block

采用注水井优势通道识别软件对陈2区块3个注水井组进行了水驱优势通道定量识别,从注采井间和井组平面两个角度对各级孔道的位置分布进行了图形化显示,并定量计算了注采井间的渗透率和各级孔道的体积。研究结果表明:超大、大孔道主要集中在注水井和采油井附近,并向油藏深部逐级发育;在水窜方向上油藏的水相渗透率和超大、大孔道的体积明显大于其他油井方向,是引起平面矛盾主要原因之一。

The dominant channels of the three injection wells in Chen2 block were quantitatively identified by the software for dominant channel identification. The position distribution of the channels at all levels was graphically displayed from the two angles of injection-production interwell area and plane of well group. And the permeability of the injection-production interwell area and the volume of the channels at all levels were quantitatively calculated. The results showed that the ultra-big and big holes are mainly distributed around the injection and production wells,and gradually developed toward the deep reservoir. The water permeability and the volumes of ultra-large and large holes in the direction of water channeling are significantly larger than that of the other wells,which is one of the main causes of the areal contradiction.