In order to prevent failure of packer and provide theoretical basis for selection of unsetting shear pin, the unsetting force of packer must he calculated in design.
为了防止封隔器过程中失效,并为封剪钉(或剪环)的选择提供理论依据,必须进行封力的设计计算。
In order to prevent failure of packer and provide theoretical basis for selection of unsetting shear pin, the unsetting force of packer must he calculated in design.
为了防止封隔器过程中失效,并为封剪钉(或剪环)的选择提供理论依据,必须进行封力的设计计算。
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