extraction well meaning in English

抽水井

By using the mathematical model for lfg pressure distribution under a vertical extraction well , method of optimum design of landfill gas collection system with vertical extraction wells was discussed in this paper , including the determination of lfg extraction flow , radius of influence of extraction well , and the buried depth of the well
本文利用竖井抽气条件下填埋代压力分布模型，分析讨论了抽代系统各参数对对抽气效果的影响，提出了垃圾填埋场填埋气竖井收集系统的抽气量、抽气井影响半径、抽气井埋深的优化设计方法，可为填气污染控制与回收利用系统的规划设计及运行管理提供技术支持。