乍得一期油田R1区块稳油控水对策研究

A strategy for stabilizing oil production and controlling water cut of block R1 in phase Ⅰ fields in Chad

乍得一期油田R1区块为常温常压的层状构造边水油藏,区块经历3个月的无水采油期后,油井普遍见水,月含水上升率2.5%,急需开展多项措施进行稳油控水综合治理,确保油田长期开发。通过精细研究及综合分析,确定了机械封堵、提液采油、井网加密等多种适合区块的稳油控水对策,经现场采纳实施后,取得了较好的效果。

R1 block, in phase one oilfield of Chad, is a stratified structural reservoir with edge water. After three months of water free production almost all oil wells have occurred water breakthrough, monthly water content increasing by 2.5 %. A number of measures are needed to be carried out with regard to stabilizing oil production and controlling water cut.After careful study and comprehensive analysis, mechanical plugging, enhancing liquid production and well pattern infilling and so on are adopted and obtain relatively good results.