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水井鉆機的分類和工作原理  返回

水井鉆機的分類和工作原理

來源:龍業機械 | 更新時間:2024.08.27

水井鉆井平臺可分為三類:旋轉水井鉆井平臺,沖擊式水井鉆井平臺和復合水井鉆井平臺。前者可細分為:大型和小型鍋錐鉆機,正負循環旋轉鉆機,液壓動力頭鉆機和井下沖擊旋挖鉆機。

旋轉水井鉆機的工作原理

旋轉水井鉆機主要依靠鉆具的旋轉運動將巖層破碎成孔。通常,有大型和小型鍋錐鉆機,正負循環旋轉鉆機,液壓動力頭鉆機和井下振動旋挖鉆機。簡單的旋挖鉆機只有鉆孔裝置,結構良好的旋挖鉆機有兩個部分:鉆孔裝置和循環井清洗裝置。旋轉水井鉆機的鉆孔工具包括鉆桿和鉆頭。常用的鉆桿的公稱直徑為60,73,76,89,102和114 mm。鉆頭分為兩類:全鉆頭和環鉆頭。

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