西南石油大学学报（自然科学版）2016，Vol.38Issue(6)：172-178,7.DOI:10.11885/j.issn.16745086.2015.10.27.21
高压气井多封隔器完井管柱力学研究
Mechanical Study of Completion String With Multi-packer for High Pressure Gas Wells
摘要
Abstract
The string with multi-packer, which is recommended by Norsok D010 standard, is an important type of high tem-perature high-pressure completion string. However, compared with the single packer, the force and deformation of completion string with multi-packer are more complicated, and the local trap pressure does great damage to pipe string. Therefore, the mechanical model with consideration of the end effect, deformation effect and effect of thermal expansion and contraction as well as helical and sinusoidal buckling effect was established. Besides, calculation based on field condition was performed. The results indicate that the force and deformation of string are greatly affected by the packer depth and wellhead temperature and pressure, and effect of multi-packer on mechanical behavior of string should be considered in the string design and evaluation.关键词
封隔器/力学研究/完井管柱/轴向变形/高温高压气井Key words
packer/mechanical analysis/completion string/axial deformation/high temperature high-pressure gas well分类
能源科技引用本文复制引用
张智,王波,李中,李炎军,张超..高压气井多封隔器完井管柱力学研究[J].西南石油大学学报（自然科学版）,2016,38(6):172-178,7.基金项目
国家科技重大专项（2016ZX05028001006，2016ZX05017003）；四川省科技厅项目（2016JQ0010）；四川省省属高校科技创新团队建设计划（13TD0026）。 （）
