Coiled tubing screen and method of well completion
AssigneeBaker Hughes Incorporated
InventorsBennett M. Richard, Benn A. Voll
Life of this patent
Estimating the term…
Abstract
The present invention allows a well to be produced through a screen without the need for a gravel pack. This is accomplished by the placement of an expandable screen that can move radially outwardly when placed at the desired location against the wellbore and be porous enough with sufficient open area to allow production from the formation. The screen is placed in the desired location by using coiled tubing which can be preperforated for a support for the screen. The screen is protected during delivery to the desired location in the wellbore by providing a disposable or removable outer cover which can be disposed of after proper location on the screen in the wellbore.
Claims18
A wellbore completion tool assembly, comprising:
- a perforated body made of an expandable material said perforations are non-slotted;
- a stretchable filter assembly secured to said perforated body so as to cover the perforations in said body;
- a tool acting on said body to expand it and said filter mounted around it without sliding movement of one portion of said filter over another portion of said filter to allow said filter to move toward the surface defining the wellbore.
A well bore completion tool assembly, comprising:
- a perforated body made of an expandable material;
- a filter assembly mounted over said perforated body so as to cover the perforations in said body;
- a tool acting on said body to expand it and said filter mounted around it to allow said filter to move toward the surface defining the well bore;
- a protective cover mounted over said filter assembly which is removable down hole.
A method of well completion, comprising:
- running in a tubular body with non-slotted perforations and a stretchable filter assembly secured to said body;
- expanding the tubular body and the stretchable filter downhole without sliding movement of one portion of said filter with respect to another.
Dependencies are inferred from the claim text.