以下为句子列表：
英文: 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 eff
中文: 由于上部钻柱的提升力随井深的增加而增加，因此应当尽量避免井口偏心或井架安装不正，防止有效偏心距过大而造成近井口套管的严重偏磨。
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英文: Take the sand-asphalt cushion displacement of (superscript #)1 floating roof tank in Linyi Initial Station as an example, this paper introduces the lifting process of pontoon's center stand, lifting step, calculation of lifting force and method of materia
中文: 摘要以临邑首站1号浮顶罐罐底板和沥青砂垫层全部更换为例，介绍了浮船中央立柱提升技术的施工工艺、施工步骤及提升力计算和材料选用的方法。
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英文: The calculation results demonstrate the effective eccentricity and the lifting force of the upper drill string are the major influential factors.
中文: 计算结果表明，有效偏心距和上部钻柱的提升力是影响近井口套管偏磨的主要因素。
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