Composite tubing
The present disclosure is directed to embodiments of composite tubing having properties tailored to meet a wide variety of environmental and working conditions. Composite tubes disclosed herein may include one or more of the following layers: a internal liner, a composite layer, a thermal insulation layer, a crush resistant layer, a permeation barrier, buoyancy control layer, a pressure barrier layer, and a wear resistant layer. Grooves may be provided in one or more layers of the composite tube to provide increased axial permeability to the composite tube. A venting system, including vent paths, may be provided in the composite tube to vent fluid that may become trapped within the wall of the composite tube.
1 .- 112 . (canceled)
113 . A composite tube for fluid transport comprising:
A composite tube for fluid transport comprising:
a substantially fluid impervious inner layer;
a permeation barrier layer comprising a plurality of spaced apart holes to allow venting of fluid;
a composite layer comprising fibers;
a vent path in fluid communication with the inner layer and in fluid communication with an exterior of the composite tube; and
a plurality of spaced apart holes to allow venting of fluid.
114 . The composite tube of claim 113 , wherein said permeation barrier comprises a polymer.
115 . The composite tube of claim 113 , wherein said permeation barrier comprises a thermoplastic polymer.
116 . The composite tube of claim 113 , wherein said permeation barrier is disposed exterior to said composite layer.
117 . The composite tube of claim 113 , further including an annular coupling.
118 . The composite tube of claim 117 , further including a check valve.
119 . The composite tube of claim 117 , wherein said coupling is a pipe-to-pipe connector.
120 . The composite tube of claim 17 , wherein said coupling is an end connector.
121 . The composite tube of claim 113 , wherein said composite layer comprises at least one of: glass, aramid, or carbon.
122 . The composite tube of claim 113 , wherein said composite layer comprises glass fibers embedded in a matrix.
123 . The composite tube of claim 113 , wherein said composite layer comprises fibers helically oriented relative to the longitudinal axis at an angle of between about 30° and about 70°.
124 . The composite tube of claim 113 , further including an adhesive layer.
125 . The composite tube of claim 124 , wherein said adhesive layer comprises a liquid resin.
126 . The composite tube of claim 125 , wherein said adhesive layer comprises a contact type adhesive.
127 . The composite tube of 113 , wherein said inner layer comprises a thermoplastic.