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US 2003/0213596 A1Published application
Tubular goods and liners
OwnerRobert H. Davisinventor
Life of this patent
Estimating the term…
Abstract
Disclosed herein are tubular goods and tubular good liners which decrease or eliminate friction and mechanical wear and decrease or eliminate chemical corrosion to the walls of the tubular good. The liners may include a diffusion barrier, an adhesive, and a friction and wear resistant layer.
Claims42
A tubular good comprising:
- an outer pipe layer;
- and
- an inner layer, wherein the inner layer comprises a diffusion barrier and a friction reducing layer, and wherein the diffusion barrier is disposed radially outward of the friction reducing layer.
A method of preparing a tubular good, the method comprising:
- providing an outer tubular layer;
- providing an inner tubular layer;
- wherein the inner tubular layer comprises a chemical barrier and a wear reducing layer;
- wherein the chemical barrier is disposed radially outward from the wear reducing layer;
- inserting the inner tubular layer into the outer tubular layer.
2 more elements
A tubular good liner comprising:
- a wear barrier;
- and
- a diffusion barrier;
- wherein the diffusion barrier is disposed radially outside of the wear barrier;
- and
- wherein the diffusion barrier is bonded to the wear barrier.
3 more elements
A tubular good liner comprising:
- a means for reducing friction;
- a means for preventing diffusion of a compound;
- and
- a means for bonding the means for reducing to the means for preventing;
- wherein the means for preventing is disposed radially outward from the means for reducing.
2 more elements
A tubular good liner comprising polypropylene.
A method for producing well fluids:
- providing a rod pumping system comprising at least one sucker rod disposed within a string of tubing which extends into said well, the string of tubing comprising at least one tubing section having a bore and an inside diameter;
- a down hole pump operably connected to the at least one sucker rod;
- and means for reciprocating the at least one sucker rod;
- wherein a liner comprising polypropylene is disposed within the bore of the tubing to eliminate or reduce contact between the at least one sucker rod and the tubing string.
1 more element
Dependencies are inferred from the claim text.