Back to results
US 5,515,915 AGranted
Well screen having internal shunt tubes
AssigneeMobil Oil Corporation
InventorsLloyd G. Jones, Tommy J. Yates
Life of this patent
Estimating the term…
Abstract
A well screen for use in gravel packing completions which produces a good distribution of gravel over the entire completion interval. The screen is comprised of a base pipe and an outer surface (e.g. wire wrap). A plurality of flow paths (e.g. shunt tubes) are positioned in the annulus which is formed between the base pipe and the outer surface of the screen, thereby providing the necessary alternate flowpaths for the slurry without substantially increasing the overall, effective outside diameter of the screen.
Claims14
A well screen comprising:
- an outer surface which is permeable to fluids and impermeable to particulate material;
- at least one flow path extending axially along and positioned inside in contact with said outer surface of said screen, said outer surface comprising a wire wrapped around said at least one flow path wherein each coil of said wire is spaced from the adjacent coils to thereby provide fluid passages between said coils of wire;
- and
- a plurality of outlets for communicating said at least one flow path with the outside of said outer surface of said screen.
1 more element
A well screen comprising:
- a base pipe having openings through the wall thereof;
- an outer surface which is permeable to fluids and impermeable to particulate material, said outer surface being spaced from said base pipe to thereby form an annulus between said base pipe and said outer surface;
- at least one conduit positioned within said annulus and extending axially along said base pipe, said outer surface comprising a wire wrapped around said at least one conduit wherein each coil of said wire is spaced from the adjacent coils to thereby provide fluid passages between said coils of wire;
- and
- a plurality of outlets for communicating said at least one conduit with the outside of said outer surface of said screen.
2 more elements
A well screen comprising:
- a plurality of sections, each of said sections comprising:
- a base pipe having openings through the wall thereof;
- an outer surface which is permeable to fluids and impermeable to particulate material, said outer surface being spaced from said base pipe to thereby form an annulus between said base pipe and said outer surface;
- at least one conduit positioned within said annulus and extending axially along said base pipe, said outer surface comprising a wire wrapped around said at least one conduit wherein each coil of said wire is spaced from the adjacent coils to thereby provide fluid passages between said coils of wire;
- a plurality of outlets for communicating said at least one conduit with the outside of said outer surface of said screen;
- and
- means for coupling said sections together whereby said at least one conduit in one of said sections is in fluid communication with said at least one conduit in an adjacent said section.
4 more elements
Dependencies are inferred from the claim text.