北断块314-6砂体是江汉油田的典型中高渗透油层,目前已进入高水阶段,面临着自然递减逐年增大和含水上升快等诸多问题。对此,结合该砂体储层特征,在北断块314-6砂体的西北与东南两个区域开展大量研究工作,对西北部大厚层进行密闭取芯、细分等措施挖潜剩余油;东南部薄油层则立足基础井网,进行整体完善,以达到提高采收率的目的。 The 314-6 sandbody of the north fault block is a typical medium-high permeability oil layer in Jianghan Oilfield. At present, it has entered the high water phase and is facing many problems such as the natural decrease gradually increases and the water cut increases rapidly. In response to this, combined with the characteristics of the sand body reservoir, a great deal of research work has been carried out in the northwest and southeast regions of the 314-6 sandbody of the North Fault Block. The large thick layer in the northwestern part has been closed coring and subdividing so as to tap the remaining oil ; Southeast thin oil layer is based on the foundation well pattern, the overall improvement in order to achieve the purpose of enhancing oil recovery.