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US 10,767,449 B2Granted
Protective shrouds for sand control screen assemblies
AssigneeChevron U.S.A. Inc.
InventorsAntonio Lazo, Namhyo Kim
Life of this patent
Estimating the term…
Abstract
A sand control screen assembly having a protective shroud or jacket that provides a controlled offset between the shroud and a filter medium. The sand control screen assembly also includes a base pipe having a drainage layer positioned therearound for preventing the flow of particulate material of a predetermined size therethrough and allowing the flow of production fluids therethrough.
Claims7
A sand control screen assembly, comprising:
- a filter medium for particle control and/or particle filtration, wherein the filter medium has a continuous cylindrical shape;
- a jacket disposed about the filter medium, wherein the jacket comprises a sheet of metal having a left side with a left edge and a right side with a right edge, wherein the sheet of metal is wrapped helically around itself to form a tube, wherein the left edge and the right edge abut against each other without overlapping to form a seam when the sheet of metal forms the tube;
- and
- a radial extension welded to an inner surface of the jacket at the seam along a length of the seam, wherein the radial extension forms a continuous spiral shape and provides substantially uniform radial spacing between the inner surface of the jacket and an outer surface of the filter medium, wherein the radial extension abuts against the outer surface of the filter medium.
1 more element
Dependencies are inferred from the claim text.