新沟嘴组油藏提高采收率技术对策研究

Study on Strategy for Enhancing Oil Recovery in Xingouzui Formation

提高油田采收率始终是油田开发工作的中心任务。目前江汉盆地新沟嘴组油藏采收率低、自然递减高。在精细剩余油分布规律认识的基础上,通过工艺技术的改进及开发手段的调整,一方面加大储层改造力度,扩大泄油面积,另一方面针对不同类型的砂体,进行水线方向的研究,选用合适的井网,提高水驱储量动用程度。多措并举,达到提高新沟嘴组油藏采收率的目的。

Enhancing oil recovery is always the focus of oilfield development.The oil recovery of the Xingouzui Formation in Jianghan Basin is currently low and the natural decline is high.On the basis of the understanding of the refined remaining oil distribution and through the improvement of the technology and the development adjustment,the reservoir stimulation should be stepped up,on the one hand,to expand the oil drainage area;on the other hand,the waterline direction should be studied for different types of sand bodies,and the appropriate well pattern should be selected to improve the utilization degree of water flooding reserves.To achieve the purpose of increasing the oil recovery of the Xingouzui Formation,we should take multiple measures simultaneously.