Abstract:
Embodiments disclosed herein relate to one or more embodiments of and methods to repair a flexible pipe. A method to repair damaged flexible fiber-reinforced pipe which includes a plurality of helically-wrapped stacks of laminated strips of material is disclosed. The method includes removing a portion of existing stacks from a damage location, abrading a surface of replacement stacks to be installed at the damage location, applying an adhesive to the abraded surface of the replacement stacks, installing replacement stacks to the damage location, binding the replacement stacks to remaining existing stacks with the applied adhesive, and installing a replacement jacket over the replacement stacks.
Abstract:
A reinforced flexible pipe having a tubular core member and a plurality of reinforcing tape members wrapped on the core member; the innermost tape member includes a plurality of openings that communicate with the external surface of the core member; and a polymer material embedded in the openings in the tape such that the polymer material contacts the core member and the tape to improve the hoop strength and the collapse resistance of the pipe. The polymer layer may also be bonded to the outer reinforcing tape to provide abrasion resistance to the reinforced flexible pipe.
Abstract:
A reinforced flexible pipe having a tubular core member (C) and a plurality of reinforcing tape members (15) wrapped on the core member! the innermost tape member (18) includes a plurality of openings that communicate with the external surface of the core member,' and a polymer material (16) embedded in the openings in the tape such that the polymer material contacts the core member and the tape to improve the hoop strength and the collapse resistance of the pipe. The polymer layer may also be bonded to the outer reinforcing tape to provide abrasion resistance to the reinforced flexible pipe.
Abstract:
A reinforced flexible pipe having a tubular core member (C) and a plurality of reinforcing tape members (15) wrapped on the core member! the innermost tape member (18) includes a plurality of openings that communicate with the external surface of the core member,' and a polymer material (16) embedded in the openings in the tape such that the polymer material contacts the core member and the tape to improve the hoop strength and the collapse resistance of the pipe. The polymer layer may also be bonded to the outer reinforcing tape to provide abrasion resistance to the reinforced flexible pipe.
Abstract:
A free venting pipe and method of forming same, comprising a permeable tubular core member with at least one permeable hoop reinforcement layer around the core member; a substantially non- permeable membrane layer positioned outside of the hoop reinforcement layer and at least one permeable tensile reinforcement layer positioned outside of the membrane layer whereby a free volume annulus does not exist between any of the layers of the free venting pipe. The hoop and tensile reinforcement layers are comprised of a laminate construction.
Abstract:
A lightweight catenary system for deepsea operations in which a lightweight flexible pipe such as disclosed in U.S. Patent No. 6,491,779 is suspended in seawater from a vessel or platform, and having a positive or nearly positive buoyancy, and which is stabilized by disposing weight in proximity to or attached to the lower portion of the pipe at or near the seabed, whereby the weight and costs of supporting heavy pipe in offshore operations is reduced or eliminated.
Abstract:
Embodiments disclosed herein relate to one or more embodiments of and methods to repair a flexible pipe. A method to repair damaged flexible fiber-reinforced pipe which includes a plurality of helically-wrapped stacks of laminated strips of material is disclosed. The method includes removing a portion of existing stacks from a damage location, abrading a surface of replacement stacks to be installed at the damage location, applying an adhesive to the abraded surface of the replacement stacks, installing replacement stacks to the damage location, binding the replacement stacks to remaining existing stacks with the applied adhesive, and installing a replacement jacket over the replacement stacks.
Abstract:
A free venting pipe and method of forming same, comprising a permeable tubular core member with at least one permeable hoop reinforcement layer around the core member; a substantially non- permeable membrane layer positioned outside of the hoop reinforcement layer and at least one permeable tensile reinforcement layer positioned outside of the membrane layer whereby a free volume annulus does not exist between any of the layers of the free venting pipe. The hoop and tensile reinforcement layers are comprised of a laminate construction.