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在钻井中使用轻质的钻柱和套管柱允许选择较小和 /或较便宜的设备 ,这可以降低钻井费用。设计钻井管柱以满足或超过一定的载荷条件和作业限制 (例如 :应力、应变、整个拉伸限制、疲劳、腐蚀等 )。影响整个设计的重要参数是钻井管柱 (套管和钻柱 )的材料密度、管柱密度影响应力(轴向应力、弯曲应力和vonMis es应力 )和管柱本身的强度 ,同时影响井架压缩和转盘扭矩 ,井架压缩和转盘扭矩是钻机选型的决定因素。本文研究了铝质钻柱和铝质套管柱的应力和强度 ,并与常规钢质钻柱和套管柱进行了比较。
The use of lightweight drill string and casing strings in drilling allows the selection of smaller and / or cheaper equipment, which can reduce drilling costs. Drilling rigs are designed to meet or exceed certain load conditions and job restrictions (eg, stress, strain, full stretch limitations, fatigue, corrosion, etc.). Important parameters affecting the overall design are the material density of the drilling string (casing and drill string) that affects the stress (axial stress, bending stress and vonMis es stress) and the strength of the string itself, while affecting the derrick compression and Turntable torque, derrick compression and turntable torque are the determinants of rig selection. This paper studies the stress and strength of aluminum and aluminum casing strings, compared with conventional steel and casing strings.