Expandable systems that facilitate desired fluid flow
AssigneeSchlumberger Technology Corporation
InventorsCraig D. Johnson, Matthew R. Hackworth, Kian Rasa, Christopher S. Del Campo, Rod W. Shampine, Claude J. Vercaemer, Gerhard Schoonderbeek
Life of this patent
Estimating the term…
Abstract
An expandable device, such as a sand screen, is used in a wellbore. The expandable device comprises an expandable base pipe and a filter layer that facilitates expansion of the device while maintaining filtering capability.
Claims43
An expandable sand screen for use in a wellbore, comprising:
- an expandable base pipe;. a base filter layer disposed along the expandable base pipe;
- and
- a separable filter layer disposed along the base pipe, the base filter layer having a solid region disposed at a separation area of the separable filter layer.
An expandable sand screen system, comprising:
- an expandable base pipe;
- and
- a pleated filter layer having a pleated filter region in which the pleated filter layer is folded back on itself.
An expandable sand screen, comprising an expandable base pipe and a filter layer affixed at an interior surface of the base pipe.
An expandable sand screen, comprising:
- an expandable base pipe having a plurality of openings;
- and
- a plurality of non-overlapping filter sections attached to the expandable base pipe, each filter section being disposed to cover at least one of the plurality of openings upon expansion of the expandable base pipe.
An expandable sand screen, comprising:
- an expandable base pipe;
- a plurality of overlapped filter sheets;
- and
- at least one liner disposed between the plurality of overlapped filter sheets.
An expandable sand screen, comprising:
- an expandable base pipe;
- and
- a filter disposed along a surface of the expandable base pipe, the filter having a first layer with first layer openings and a second layer with second layer openings, wherein the first layer and the second layer are combined such that the first layer openings are offset relative to the second layer openings to provide filter openings of desired size.
An expandable sand screen, comprising a filter formed by a plurality of slidably engaged strands, wherein upon expansion of the filter, the plurality of slidably engaged strands move to positions that create filtration openings.
An expandable filtration system for use in a wellbore, comprising:
- an expandable sand screen having a zonal isolation region and an adjacent filtration section, the zonal isolation region comprising a blank screen section that prevents fluid flow into the sand screen while the adjacent filtration section enables fluid flow into the sand screen.
Dependencies are inferred from the claim text.