摘要
套管破坏是稠油热采中的主要问题之一,而热力耦合是导致套管损伤的主要影响因素。基于有限元分析软件ADINA,建立了套管在温度、重力以及地层蠕动荷载组合下的三维有限元模型。应用Parasolid建模方法,建立了热采井套管的结构和热分析几何模型,设定了温度、重力以及地层蠕动组合荷载,并进行了套管、水泥环和不同地层的模型参数选择。通过热力耦合计算,得到了套管的应力与变形情况。分析了计算结果,并为套管防护提出了几点建议。
the main problem of thermal recovery for viscous crude is casing damage , and the main influencing factor of casing damage is thermal-mechanical coupling. Three-dimensional finite element model is constructed under multi-action of temperature, gravity and stratum creep based on FEA software ADINA. By the application of Parasolid modeling method, structure and thermal geometry model of casing pipe for thermal production well are established, multi-loads of temperature, gravity and stratum creep are applied, and model preferences for casing, cement shealth and several strata are defined. Through thermal-mechanical coupling, stress distribution and deformation of casing pipe are worked out. The calculation results are analyzed and some suggestions are proposed for casing pipe protection.
出处
《河北理工大学学报（自然科学版）》
CAS
2010年第1期1-5,共5页
Journal of Hebei Polytechnic University:Social Science Edition
基金
国家自然科学基金项目(50678059)
河北省自然科学基金项目(E2009000757)资助
关键词
热力耦合
有限元
ADINA
套管
数值模拟
Thermal-mechanical coupling
finite element
ADINA
casing pipe
numerical simulation
