高压异常地层套管外挤力研究  

Study about the Outer Extrusion Stress of Casing in Abnormal Surpressure Formation

作　　者：刘积松[1] 李学忠[1] 陈继明[2] 

机构地区：[1]中原石油勘探局,河南省濮阳市457001 [2]西南石油学院

出　　处：《断块油气田》1997年第4期50-52,63,共4页Fault-Block Oil & Gas Field

摘　　要：研究分析了高压异常地层（盐岩层、泥页岩层、膏盐岩层等）套管柱的受力状况，建立了套管柱三维空间力学模型，研制了相应的计算机软件。该空间力学模型考虑了地层因素、井身结构因素、腐蚀因素等，其计算结果与套管抗挤毁的模拟试验结果非常吻合。所研制的计算机软件功能完善，并且有完善的前后处理功能。This paper studies the force calculation of casing string in abnormal surpressure formation (saline rock,shale bed and gypsum-salt rock) with 3-D physical model and finite element technique. Its result is coincident with that of simulating test of casing collapse very well. This 3-D physical model considers factors of formation,casing program and corrosion etc. The software performance is complete and can provide for pre-processing and reprocessing.

关 键 词：套管 高压 地层 受力分析 有限元法 

分 类 号：TE931.2[石油与天然气工程—石油机械设备]