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随着社会经济的发展,人类生存的需要以及油气勘探开发技术的不断进步,现今许多油田将勘探开发方向逐步转向更深岩层进行勘探,使得开发的井具有温度高和压力大的特点。在对这些高温高压深井进行试油时,需要考虑到井身结构、管柱组合、管柱载荷及高温高压等多因素的影响,同时还有温度及螺旋弯曲等效应对管柱受力和变形的影响,最终给出了井下管柱轴向受力、变形和应力计算等力学分析方法。
With the development of society and economy, the need of human existence and the continuous improvement of oil and gas exploration and development technology, many oilfields gradually shift their exploration and development directions to deeper strata for exploration, making the developed wells characterized by high temperature and pressure. In these high temperature and pressure deep wells for oil testing, we need to take into account the wellbore structure, the combination of pipe strings, pipe loads and high temperature and pressure and other factors, as well as temperature and helical bending effect on the column stress and deformation Finally, the mechanical analysis methods such as axial force, deformation and stress calculation of downhole tubular string are given.