eccentric wear 中文意思是什麼
eccentric wear
解釋
（輪胎）偏磨耗-
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。 -
Finite element analysis of the influence of casing eccentric wear rate on collapsing strength
套管偏磨曲率對其抗擠毀強度影響的有限元分析 -
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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