PDF(2121 KB)
PDF(2121 KB)
PDF(2121 KB)
垂直井内上击器解卡过程中钻柱振动数学模型的建立与求解及动态解卡力分析
({{custom_author.role_cn}}), {{javascript:window.custom_author_cn_index++;}}Establishment and solution of a mathematical model of the drillstring vibration and analysis of dynamic release force during an up-jar operation in a vertical well
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