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随着钻探工作向深部地层发展 ,高温高压深井越来越多。深井测试是继地震勘探、岩屑录井、取心和电测之后唯一能直接测得地层流体特性和地层参数的方法 ,也是提高勘探、开发经济效益的重要途径。根据高温高压深井测试求产工况下测试管柱内外流体流动的实际情况和管柱在井中的受力、变形状况 ,建立了测试管柱求产工况的三维力学分析模型 ,采用数值分析方法得到测试管柱载荷、内力及变形等参数沿管柱轴线的变化规律 ,为深井测试管柱的设计和施工参数的确定提供了理论依据。
With the development of drilling to the deep formation, more and more high temperature and pressure deep well. Deep well testing is the only method that can directly measure formation fluid properties and formation parameters following seismic exploration, debris logging, coring and electrical measurements. It is also an important way to improve exploration and economic benefits. According to the actual situation of fluid flow inside and outside the test string under high temperature and high pressure and deep well test and the force and deformation conditions of the string in the well, a three-dimensional mechanical analysis model of the test string for producing and working conditions was established. The numerical analysis method The variation of load, internal force and deformation parameters along the axis of the pipe string is obtained, which provides a theoretical basis for the design and construction parameters of the deep well test pipe string.