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US 8,146,662 B2Granted
Well screen assembly with multi-gage wire wrapped layer
AssigneeHalliburton Energy Services, Inc.
InventorJacob Shoemate
Life of this patent
Estimating the term…
Abstract
A well screen assembly includes an elongate base pipe and a wire wrap layer. The wire wrap layer includes a wire wrapped around support ribs. The wire wrap layer has an axial end section wrapped at a first gage and an intermediate section wrapped at a second, larger gage. A mesh layer is provided around the wire wrap layer. An outer shroud is provided around the mesh layer, the outer shroud sealed to the wire wrap layer.
Claims20
A well screen assembly, comprising:
- an elongate base pipe;
- a wire wrap layer comprising a wire wrapped around the base pipe, the wire wrap layer having a first axial end section wrapped at a first gage, a second axial end section wrapped at a second gage, and an intermediate section between the first and second axial end sections wrapped at a third gage that is larger than the first and second gages;
- a mesh filtration layer around the wire wrap layer;
- and
- an outer shroud around the mesh filtration layer, the outer shroud sealed to the wire wrap layer.
2 more elements
A well screen assembly, comprising:
- a plurality of support ribs;
- and
- a wire coiled around and bonded to the support ribs, a spacing between adjacent coil windings in end sections of the wire coil operable to filter against passage of particulate of a specified size, and a spacing between adjacent coil windings in an intermediate section of the wire coil operable to allow particulate of the specified size to pass.
A method for making a well screen assembly, the method comprising:
- fitting an elongate base pipe with a wire wrap screen layer comprising a wire coil bonded to longitudinal ribs, wherein adjacent coil windings in opposing end sections of the coil are positioned at substantially zero gage, and coil windings in an intermediate section of the coil wire positioned at a non-zero gage;
- wrapping at least one mesh layer over the wire wrap screen layer so that the longitudinal dimension of the mesh layer extends to overlap at least the opposing end sections;
- providing a rigid shroud layer over the at least one mesh layer, the longitudinal dimension of the rigid shroud layer extending to overlap at least the opposing end sections underlying the at least one mesh layer;
- and
- crimping the shroud layer about the opposing end sections underlying the at least one mesh layer and rigid shroud layer to pinch and seal the at least one mesh layer between the wire wrap screen layer and the rigid shroud layer.
2 more elements
A well screen assembly, comprising:
- an elongate base pipe;
- a wire wrap layer comprising a wire wrapped around the base pipe, the wire wrap layer having an axial end section wrapped at a first gage and an intermediate section wrapped at a second, larger gage;
- a mesh filtration layer around the wire wrap layer;
- and
- an outer shroud around the mesh filtration layer, the outer shroud sealed to the wire wrap layer, and
- wherein the wire wrap layer further comprises a second axial end section wrapped at substantially zero gauge, and wherein the intermediate section is disposed between the first and second axial end sections.
3 more elements
A method for making a well screen assembly, the method comprising:
- fitting an elongate base pipe with a wire wrap screen layer comprising a wire coil bonded to longitudinal ribs, wherein adjacent coil windings in a first section of the coil are positioned at substantially zero gage, and coil windings in a second section of the coil wire positioned at a non-zero gage;
- wrapping at least one mesh layer over the wire wrap screen layer so that the longitudinal dimension of the mesh layer extends to overlap at least the first coil section;
- providing a shroud layer over the at least one mesh layer, the longitudinal dimension of the shroud layer extending to overlap at least the first coil section underlying the at least one mesh layer;
- and
- crimping the shroud layer about the first coil section underlying the at least one mesh layer and shroud layer to pinch and seal the at least one mesh layer between the wire wrap screen layer and the shroud layer, and
- wherein the wire wrap screen layer further comprises a third coil section, wherein adjacent coil windings in the third coil section are positioned at substantially zero gage, and
- wherein the second section of the coil is disposed between the first and third sections.
4 more elements
Dependencies are inferred from the claim text.