水平井平衡采油工艺技术

Balanced oil production technique of horizontal well

针对水平井,尤其是长井段水平井开发过程中出现的各井段不能均衡采油,而导致底水或气顶锥进,极大影响水平井采收率的难题,结合目前现状,较为详细地阐述了水平井平衡采油的3种工艺技术:新型控液滤砂管技术、选择性采油技术和选择性射孔技术,并对这3种技术的适用范围及国内外应用情况都做了分析。水平井平衡采油工艺技术在应用上要做到因地制宜。

In the process of horizontal well developing, especially the horizontal well with relative long hole interval, some problems as unbalanced oil production in each hole interval occur, which leads to bottom water and gas cap coning and limits the oil recovery. This paper sets forth three kinds of techniques for balanced oil production of horizontal well, such as selective perforating, new inflow control devices （ICD） screening and selective oil production aiming at forementioned problems.