old well plugged back
... overtonging上扣过紧 old well plugged back老井封堵 old well sidetracked老井侧钻 ...
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... ownership 所有权；所有制 OWPB 老井封堵 OWSP 斜井垂直地震剖面 ...
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·2,447,543篇论文数据，部分数据来源于NoteExpress
⑤采用设置观察井、老井封堵和注采井安全措施等方法来保障储气库安全运行；
Smooth and safe operation of underground gas storage facilities is guaranteed by the design of observation wells, the plugging of old wells, and safety designs, etc… f.
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