水井、井水及废水
Wells and well water and waste water
临时放弃井井盖
temporary well abandonment cap
废弃水泥基材料
waste of cement-based materials
G级高抗硫油井水泥
G high sulfur resistant oil well cement
贝利特型砂质油井水泥
oil well sandy belite cement
固井水泥车
Oil well cement truck
cement truck for fixed well
固井水泥与地层的界面
cement-formation interface