Composite spoolable tube
AssigneeFiberspar Corporation
InventorsPeter A. Quigley, Stephen C. Nolet, Jerry G. Williams
Life of this patent
Estimating the term…
Abstract
A spoolable composite tube capable of being spooled onto a reel for storage and for use in oil field applications. The spoolable tube exhibits unique anistropic characteristics that provide improved burst and collapse pressures, increased tensile strength, compression strength, and load carrying capacity, while still remaining sufficiently bendable to be spooled onto a reel in an open bore configuration. The spoolable composite tube can include an inner liner, an interface layer, fiber composite layers, a pressure barrier layer, and an outer protective layer. The fiber composite layers can have a unique triaxial braid structure.
Claims60
A spoolable composite tube extending along a longitudinal axis, the composite tube comprising:
- a polymer liner;
- and
- a composite layer exterior to the liner, the composite layer being formed of a first set of fibers in a matrix, at least 80% of the fibers, by fiber volume, of the first set of fibers being helically oriented relative to the longitudinal axis at an angle of between 30° and 70°, the matrix having a tensile modulus of elasticity of at least 100,000 psi.
A spoolable composite tube extending along a longitudinal axis, the composite tube comprising:
- a polymer liner;
- a composite layer exterior to the liner, the composite layer being formed of a first set of fibers in a matrix, at least 80% of the fibers, by fiber volume, of the first set of fibers being helically oriented relative to the longitudinal axis at an angle of between 30° and 70°, the matrix having a tensile modulus of elasticity of at least 100,000 psi;
- and
- a polymer interface layer interposed between the liner and the composite layer, the polymer interface layer being bonded to the liner and to the matrix of the composite layer.
A spoolable composite tube extending along a longitudinal axis, the composite tube comprising:
- a polymer liner;
- a composite layer exterior to the liner, the composite layer being formed of a first set of fibers in a matrix, at least 80% of the fibers, by fiber volume, of the first set of fibers being helically oriented relative to the longitudinal axis at an angle of between 30° and 70°, the matrix having a tensile modulus of elasticity of at least 100,000 psi;
- and
- a layer of material selected to have a low permeability to fluids external to the liner, the layer having a permeability of less than or equal to 0.4×10−10 ccs per sed-cm2-cm-cmhg.
The composite tube of claim of 18, further comprising an outer protective layer external to the layer.
A spoolable composite tube extending along a longitudinal axis, the composite tube comprising:
- a metallic liner;
- and
- a composite layer exterior to the liner, the composite layer being formed of a first set of fibers in a matrix, at least 80% of the fibers, by fiber volume, of the first set of fibers being helically oriented relative to the longitudinal axis at an angle of between 30° and 70°, the matrix having a tensile modulus of elasticity of at least 100,000 psi.
A spoolable composite tube extending along a longitudinal axis, the composite tube comprising:
- a liner of at least one of polymeric and metallic material;
- a composite layer exterior to the liner, the composite layer being formed of a first set of fibers in a matrix, at least 80% of the fibers, by fiber volume, of the first set of fibers being helically oriented relative to the longitudinal axis at an angle of between 30° and 70°, the matrix having a tensile modulus of elasticity of at least 100,000 psi;
- and
- a polymer layer external to the liner, the polymer layer having a permeability of less than or equal to 0.4×10−10 ccs per sed-cm2-cm-cmhg.
A spoolable composite tube extending along a longitudinal axis, the composite tube comprising:
- a liner of at least one of polymeric and metallic material;
- a composite layer exterior to the liner, the composite layer being formed of a first set of fibers in a matrix, at least 80% of the fibers, by fiber volume, of the first set of fibers being helically oriented relative to the longitudinal axis at an angle of between 30° and 70°, the matrix having a tensile modulus of elasticity of at least 100,000 psi;
- and
- a metallic layer external to the liner, the metallic layer having a permeability of less than or equal to 0.4×10−10 ccs per sed-cm2-cm-cmhg.
A spoolable composite tube extending along a longitudinal axis, the composite tube comprising:
- a polymer liner;
- a metallic liner external to the polymer layer;
- a composite layer exterior to the metallic liner, the composite layer being formed of a first set of fibers in a matrix, at least 80% of the fibers, by fiber volume, of the first set of fibers being helically oriented relative to the longitudinal axis at an angle of between 30° and 70°, the matrix having a tensile modulus of elasticity of at least 100,000 psi;
- and
- a polymer layer external to the composite layer, the polymer layer having a permeability of less than or equal to 0.4×10−10 ccs per sed-cm2-cm-cmhg.
Dependencies are inferred from the claim text.