Method of assembly for sand screen

摘要

A method of assembling a sand screen assembly includes the steps of providing inner and outer shrouds having radial protrusions, such as ribs, louvers, splines, etc., that are radially unaligned during a first assembly step thereby providing clearance for positioning of a filter layer between the shrouds. The outer or inner shroud is then rotated until the protrusions are aligned and the clearance between the shrouds and filter layer is eliminated to provide a tight fit between the layers.

主权项

1. A method of making a well screen assembly, the method comprising the steps of:
a) positioning an inner tubular member and an outer tubular member with respect to one another such that the inner tubular member is positioned radially inward from the outer tubular member, and such that a plurality of radially outwardly extending protrusions on the inner tubular member are aligned with a plurality of gaps defined between a corresponding plurality of radially inwardly extending protrusions on the outer tubular member; b) positioning a filter layer such that, upon assembly, the filter layer is positioned in an annular clearance space defined between the inner and outer tubular members; and c) rotating the inner and outer tubular members with respect to one another such that the protrusions on the inner tubular member are aligned with the protrusions on the outer tubular member, thereby sandwiching the filter layer and eliminating the annular clearance space.
The above change is made to further clarify that upon the rotation of tubular members the filter layer is being sandwiched between the respective aligned protrusions on the tubular members.