Patent ID: 7753121
Filing Date: 2010-07-13
Classification: E21B

Abstract:
1. An assembly usable with a well, comprising: a base pipe comprising at least one radial port to communicate well fluid and having an outer surface; a screen mounted to the base pipe and adapted to at least partially surround the base pipe, said at least one radial port being covered by the screen; perforating charges mounted to the outer surface of the base pipe; and radial extensions adapted to extend radially beyond the perforating charges and screen to form a channel to receive the perforating charges and protect the screen and perforating charges; wherein the screen comprises continuous multiple spiral windings about the base pipe, two of the windings are adjacent to each other without any other winding of the screen being disposed between said two of the windings, and the channel spirally extends between said two of the windings.