drill string 中文意思是什麼

drill string 解釋
鉆桿柱
  • drill : n 1 【軍事】操練，演習；（嚴格而有系統的）盤練，訓練；〈英口〉教官。2 【機械工程】鋼鉆，鉆頭；鉆...
  • string : n 1 線，帶，繩子；〈美國〉鞋帶〈又作 shoe string， 〈英國〉稱 shoe lace〉。 （穿線、數珠等的）串...
  1. Stability analysis of drill - string in directional drilling

    定向井鉆柱穩定性分析
  2. The swing arms are fastened to the inside structure of the mast, and permit the pipe rack to be low - ered from the stored position to the centerline of the drill string

    兩個懸臂則固定在支架的內部結構上，並允許管架從貯存位置降到鉆柱中線上。
  3. It can lead to not only quick wear and early failure of drill pipe but also the decrease of collapse resistance and burst resistance of casing string, which could cause casing collapse, casing deformation and casing leak, even well bore abandonment

    其直接後果是：鉆柱快速磨損，導致過早失效；套管磨損會降低套管柱的抗擠強度和抗內壓強度，造成套管柱擠毀、變形及泄漏，嚴重時造成全井報廢。
  4. Study of contact force between drill string and borehole wall in constant - curvature wellbores

    等曲率井眼中鉆柱與井壁間接觸力分析
  5. The rotary carriage provides rotary and vertical motion to the drill string and bit

    轉動滑架為鉆柱和鉆頭提供轉動和垂直移動。
  6. An example of friction calculation shows that the calculation results provide a basis for the selection of drilling equipment, optimization of drillstem parameters and wellbore structure, and the selection of tripping modes of the drill string

    實例計算分析表明，摩擦阻力計算結果可為鉆井設備選型、優化管柱參數和井身結構以及選擇下入方式提供可靠依據。
  7. Based on the dynamics, a mechanical model calculating the drill string ' s eccentric wear is established, the approximation equation calculating the positive pressure on casing / drill string is derived out, and the major factors affecting the eccentric wear are analyzed

    針對深井鉆井中的井口附件套管偏磨問題，以動力學為基礎，建立了鉆柱偏磨力學模型，推導出了套管鉆柱正壓力的近似計算公式，分析了影響偏磨的主要因素。
  8. Its main functions are maintaining borehole gage, improving drill string stability and protecting lower drill string from excessive wear

    其重要作用是保持鉆頭尺寸符合標準，提高鉆桿穩定性，避免鉆桿下部過于磨損。
  9. The calculation results demonstrate the effective eccentricity and the lifting force of the upper drill string are the major influential factors

    計算結果表明，有效偏心距和上部鉆柱的提升力是影響近井口套管偏磨的主要因素。
  10. The bigger the effective eccentricity, the higher the upper drill string ' s lifting force, the higher the positive pressure on casing / drill string, and the more serious the wear

    有效偏心距越大，上部提升力越大，套管鉆柱之間的正壓力將越大，磨損將越產重。
  11. Prediction of drill string ' s fatigue life under torsion and axial vibration

    縱向振動下的疲勞壽命估算
  12. 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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