But the improving effect and benefit of downhole operation have not formed yet.
但系统地提高井下作业效果与效益的管理思路尚未形成。
Formation burst pressure is one of the key parameters for the thermal production of heavy oil, drilling engineering and downhole operation.
地层破裂压力是钻井工程、井下作业及稠油油藏热力开采的重要参数。
Therefore, the calculation on the amount of deformation is not only an important work in force analysis of packer string, but also an important factor to ensure the downhole operation.
因此，计算自由移动封隔器管柱的变形量是整个管柱受力分析的重要组成部分，也是保证井下作业成败的关键因素。
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