collapse of casing 中文意思是什麼

collapse of casing 解釋
套管的破壞
  • collapse : vi 1 （屋頂等）倒塌，塌下；（政府等）崩潰，瓦解。2 （價格等）暴跌；（計劃等）失敗；（身體、健康等...
  • of : OF ＝Old French 古法語。
  • casing : n. 1. 裝箱，裝袋，入鞘。2. 〈集合詞〉包裝箱[鞘、袋、筒、框等]。3. （窗等的）框子；圍子；圍墻。4. （做香腸用的）腸衣。5. 外（車）胎；套管；罩殼。
  1. 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。
  2. The highlights of this paper include : hoop toughness criterion for longitudinal heat checking of tool joint was introduced firstly ; failure criterion for crescent - shaped wear casing was established according to the results of full - scale collapse tests ; new - typed alloy for hardbanding of tool joint was developed, its property has showed good performance in the tests

    本文的主要創新點在於：以現場失效案例分析為基礎，提出了鉆桿接頭縱向熱裂的橫向韌性判據；通過對已磨損套管的實物擠毀試驗研究，確定了不均勻磨損套管的擠毀失效準則；設計出了具有獨立知識產權的鉆桿接頭硬化帶用新型耐磨減摩合金的成分，經實驗室試驗表明其性能可以達到或超過國外同類產品。
  3. By using finite element method, full - scale tests and the strain survey method, as for the crescent - shaped wear casing, this paper has discussed on mechanism of casing collapse and its influence on casing collapse. furthermore, computing method for both uniform wear and crescent - shaped wear situation was introduced, which can be used directly for casing string design

    採用有限元分析、實物試驗及實驗應變測量方法，研究了套管產生不均勻磨損時的擠毀失效機理及其對套管擠毀性能的影響，確定了均勻磨損和不均勻磨損對套管擠毀性能的計算方法，研究結果可直接用於套管柱強度設計和校核中。
  4. Analysis of casing equivalent collapse resistance in creep formations

    蠕變地層套管等效破壞載荷分析
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