石油钻采工艺2018，Vol.40Issue(1)：131-136,6.DOI:10.13639/j.odpt.2018.01.021
储气库注采参数与管柱临界屈曲载荷分析
Analysis on the injection and production parameters of underground gas storage and the critical buckling load of pipe string
摘要
Abstract
Wellhead tubing pressure, production rate and tubing string buckling deformation of gas storage wells were studied thor-oughly based on the casing program and gas production process of gas storage wells in Huabei Oilfield. Three critical loads under which the pipe string suffers sinusoidal or helical buckling deformation in the wellbore and the buckling states between these three critical loads were discussed. And accordingly, the new critical load for the classification of unstable sections was determined and the mathematical model for calculating the axial force at the bottom of tubing was derived. Based on the mechanical analysis and theoretical research on the pipe string with packer, the mathematical model for calculating various effect changes on packer strings and the established mathe-matical model for calculating critical buckling load of pipe string, a set of safety evaluation software for injection and production string of gas storage well was developed by means of VB2013. And then this software was used to study the injection and production string of gas storage well S-x in Huabei Oilfield. It provides the theoretical basis for the parameter selection of gas storage wells (e.g. wellhead tubing pressure and production rate) and for the safety evaluation of injection and production strings.关键词
储气井/管柱/封隔器/临界载荷/产量/屈曲形态Key words
gas storage well/pipe string/packer/critical load/production rate/buckle form分类
能源科技引用本文复制引用
练章华,徐帅,丁建东,张强,潘众..储气库注采参数与管柱临界屈曲载荷分析[J].石油钻采工艺,2018,40(1):131-136,6.基金项目
国家自然科学基金项目"极端条件下气井油套管端力学行为及其螺纹密封机理研究"(编号:51574198) （编号:51574198）
中国石油天然气股份有限公司重大项目"华北油田储气库建设配套技术研究"(编号:2011-HB-Z220). （编号:2011-HB-Z220）
