P110套管抗外压挤毁强度的有限元分析验证  

Verification of Collapse Strength of P110 Casing via Finite Element Analysis

作　　者：黎新春 王洪兵 

机构地区：[1]山东墨龙石油机械股份有限公司,山东寿光262703

出　　处：《钢管》2017年第6期16-21,共6页Steel Pipe

摘　　要：采用有限元分析软件对套管抗外压挤毁的影响因素进行验证分析,其中主要分析P110钢级Φ139.70 mm×7.72 mm规格套管管体的几何尺寸如外径、壁厚、椭圆度及管体的机械性能对管体抗外压挤毁能力的影响;对比模拟结果与实物外压挤毁试验结果、二维与三维模拟试验结果,并分析内压加载标准大气压对模拟结果的影响。分析认为:管体椭圆度和壁厚对管体抗外压挤毁强度影响明显,在实际生产中必须加以控制。Relevant factors as affecting the collapse strength of the casing are verified with the finite element analysis （FEA）software, focusing on such factors as the geometric dimensions of the pipe body of the Ф139.70mm×7.72 mm PllO casing, including O.D., wall thickness, and ovality, and the mechanical properties of the pipe body; Analytical comparisons are conducted with FEA simulation test result and the full scale collapse test result, the 2-D and 3-D simulation test results, and the influence on simulation resuit by the loading of the internal pressure with the normal atmosphere. As a result of the analysis, it is regarded that both the ovality and wall thickness of the casing pipe body produce significant influences on the said collapse strength, which needs to be properly controlled in actual operation.

关 键 词：套管 抗外压挤毁 有限元 设计验证 几何尺寸 

分 类 号：TE931.2[石油与天然气工程—石油机械设备] TG142[一般工业技术—材料科学与工程]