ANALYSIS OF STRENGTH AND INVALIDATION OF SLOTTED SCREEN WITH COMPOUND CAVITY

On the basis of analyzing current mechanical sand control techniques, a new kind of slotted screen with compound cavity is developed in this paper. Slotted screen with compound cavity has virtues such as low flow resistance、fine effect of sand control, high intensity, long service life etc.. The structure characters and sand control principium of slotted screen with compound cavity are expatiated in this paper. Moreover, the strength analysis is also performed on slotted screen with compound cavity, which is compared with the pipe sleeve recommended by API. At the same time a new method is presented for estimating the invalidation of screen, which is synthesized with practical application. Finally, the application of slotted screen liner with compound cavity in Shengli Oil Field is provided.