Abstract:
Casing deformation of product well disturbs oil production seriously.Casing deformation takes place in these geological environments such as plastic rock layer,fault zone,active lithosphere zone,earthquake zone and the place where sand flows.The change of dynamical condition around well causes casing deformation.Local dynamical condition is controlled by regional dynamical condition.Local dynamical condition is more sensitive to ambience around well.The change of dynamical environment around well is the basic mechanism of casing deformation.