derrick head 中文意思是什麼

derrick head 解釋
吊桿端吊桿頭
  • derrick : n. 1. 【機械工程】動臂起重機,塔式起重機,起貨桅。2. 油井架,鉆(井高)塔;(飛機的)起飛塔。3. 〈美俚〉小偷。
  • head : n 1 頭,頭部,首。2 頭腦,才能;智力,想像力,理解力。3 前部,上部;頂端,尖突部;船長;(書頁等...
  1. Shipbiulding ; derrick head fittings, fixed type ; identical with iso 8148, edition 1985

    造船.固定吊桿眼板.與iso 8148 1985版本等同
  2. Since the deeper the well, the higher the lifting force at the upper drill string, the deviation of derrick and the well head ' s eccentricity should be avoided by all means to prevent the severe eccentric wear on the casing which is caused by excessive effective eccentricity

    由於上部鉆柱的提升力隨井深的增加而增加,因此應當盡量避免井口偏心或井架安裝不正,防止有效偏心距過大而造成近井口套管的嚴重偏磨。
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