gravel packing
短语词组
- horizontal gravel -packing 水平井砾石充填
- gravel -packing sand-control 充填防砂
- area of gravel -packing 充填区
- high -pressure gravel-packing and sand-preventing 高压砾石充填
- flow -type gravel packing 循环式砾石充填
- tside casing high -pressure gravel packing 管外高压砾石充填
- low -pressure gravel squeeze packing 低压挤压砾石充填 返回 gravel packing