水平井分段同注技术在超稠油开发中的应用

Application of Horizontal Well Selected Interval Steam Injection to Super Heavy Oil Development

随着超稠油水平井开发规模的逐步扩大,水平井水平段生产不均匀的矛盾日显突出,已成为影响水平井高效开发的主要因素。根据水平井温度监测资料合理判断水平段剖面动用状况,采用分段同注工艺技术,将水平段分隔成几个独立的注汽腔,灵活调整注汽量,实现水平段整体均匀注汽,调整水平段动用剖面,提高动用程度,改善开发效果,为超稠油开发持续稳产提供技术保障。

With the continuous expansion of super heavy oil development by horizontal well steam injection process in District Shu-1 of Liaohe oilfield, the uneven production by horizontal well interval highlights the unfavorable influences on its efficient development. It is determined that the technique of steam allocation for selected intervals should be adopted on the basis of the temperature monitnring data for reasonable judgment of producing level of the horizontal well intervals. Therefi）re, the horizontal intervals can be divided into several separate steam injection chambers in order to make a flexible adjustment of steam injection rate, achieve the unifi^rm steam injection, adjust the hori- zontal steam injection section, improve the producing degree, and finally improve the development effect. This technique provides the tech- nical support for sustainable and stahle produelion of super heavy oil development in this area.