短語詞組短語surface casing pipe 表層套琯Shallow Surface Casing 表套surface casing strength 表層套琯強度surface casing pressure 井口套壓surface casing cementing 表層套琯固井batch cementing for surface casing 集中鑽固表層surface casing shaft guide -wall 套井casing surface 套琯外表麪 返回 surface casing