Effect Analysis of Water Invading Shale Expansion on Casingdamage

摘要：

Local abnormal stress caused by water invading shale expansion is the main reason of casing damage. We studied the additional casing load of well caused by shale expansion through theory and the numerical simulation, Water invading range and formation parameter around the well govern the additional casing load. Surrounding pressure affect water invading velocity and the last invasion depth. With the rising of pressure, the invading velocity and the range of invaded shale increase, and cause greater casing load. In the course of oil field exploit, the interbeded pressure difference should be control in appropriate range in order to decrease the casing damage caused by shale invading

关键词： water invasion of shale expansion additional casing load invasion range casing damage

作者: LV Xiumei LIU Jisheng PEI Jianya

作者单位: Logging & Testing Services Company of Daqing Oiifield Co. Ltd., Heilongjiang, China, 163453

会议类型: 国际会议

会议名称: 2010 International Symposium on Multi-field Coupling Theory of Rock and Solid Midia and Its Applications(2010年岩土多场耦合理论及应用国际学术论坛)

会议地点: 成都

会议语种:英文

页码: 387-391

在线出版日期: 2010-10-10（万方平台首次上网日期，不代表论文的发表时间）