油井监控系统
oil well’s monitor and control system
油井见水时的采油量
initial breakthrough recovery
油井见效
effective response for water flooding
油井结蜡
oilfield paraffin deposit
油井解堵剂
Blockage-Removing Agent for Production Wells
油井开采资料
oil-well production information
油井蜡宙积原理
mechanisms of paraffin deposition in oil production wells