盐穴储气库运行损伤评价体系

发布时间：2018-05-11 07:03

  本文选题：储气库 + 盐岩　； 参考：《油气储运》2017年08期

【摘要】：腔体损伤评价是盐穴储气库安全运行涉及到的重要问题之一。通过对盐岩力学特性开展室内系统试验,利用损伤力学、岩石流变学理论及有限元数值模拟方法,研究了盐穴储气库运行过程中腔体损伤评价体系。盐岩损伤评价方法包括最大拉应力准则、最大剪应力准则、最大畸变能准则、膨胀强度准则、蠕变强度准则。利用ABAQUS软件对所关注盐穴的评价指标进行数值模拟计算,并将计算结果与声呐实测结果对比,表明:所采用的腔体损伤评价体系能够很好地对腔体注采运行过程中的损伤破坏进行评价,可为今后盐岩损伤评价预测及控制提供参考依据。
[Abstract]:Cavity damage assessment is one of the important problems involved in the safe operation of salt cavern gas storage. Through the laboratory systematic test on the mechanical properties of salt rock, the damage evaluation system of the cavity during the operation of the salt cavern is studied by using the damage mechanics, rock rheology theory and finite element numerical simulation method. The damage assessment methods of salt rock include the maximum tensile stress criterion, the maximum shear stress criterion, the maximum distortion energy criterion, the expansion strength criterion and the creep strength criterion. ABAQUS software is used to simulate and calculate the evaluation index of salt hole concerned, and the calculated results are compared with the measured results of sonar. The results show that the damage evaluation system can be used to evaluate the damage and damage of cavity during the operation of injection and mining, and it can provide reference for the prediction and control of salt rock damage in the future.
【作者单位】： 中国石油西气东输管道公司储气库项目部;
【基金】：中石油储气库重大专项子课题“地下储气库关键技术研究与应用”,2015E-4008
【分类号】：TE972
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本文编号：1872902