杜212南块兴隆台油藏未动用储量水平井开发研究

Development of Unexploited Horizontal Well in Xinglongtai Reservoir of Du 212 South Block

曙光油田开发进入中后期,新增储量逐年减少,为盘活未动用储量,减缓产量递减,2007年开始对杜212南块兴隆台实施由区块中部向边部滚动部署水平井蒸汽吞吐开发,并形成适合兴隆台未动用储量水平井部署原则、水平井注采工艺、水平井配套增产措施技术。截止2017年底共部署水平井23口,开发效果良好,累计产量42. 8×10~4t,新增可动用储量710×10~4t,为同类油藏大面积水平井开发提供了重要技术支持。

In the middle and late stage of Shuguang oilfield development,new reserves are decreasing year by year.In order to activate unused reserves and slow down production decline,the steam huff and puff development of horizontal wells with rolling deployment from the middle to the edge of Xinglongtai Block Du212 was carried out in 2007,and the deployment principle and level of horizontal wells with unused reserves suitable for Xinglongtai were formed.Well injection and production technology,horizontal well matching and stimulation measures.By the end of 2017,a total of 23 horizontal wells had been deployed,with good development effect,cumulative production of 42.8×10^4t and a new available reserve of 710×10^4t.It provides important technical support for the development of large horizontal wells in similar reservoirs.