Abstract: A system and method of reinforcing a portion of a pipe, including applying a fiber structure to the portion of the pipe to be reinforced, and pressurizing resin through the fiber structure to the portion of the pipe to substantially saturate the fiber structure with resin, wherein the resin comprises a viscosity of less than about 10,000 cP and a surface tension of less than about 30 dynes. The resin is permitted to cure under ambient conditions at a peak exotherm of greater than about 200° F., wherein the cured resin comprises a glass transition temperature of greater than about 150° F. and a heat distortion temperature of greater than about 150° F. Pressurizing the resin may include use of a reinforcing containment and underlying pliable mold that is compressed to pressure the resin through the fiber structure to the pipe.

Abstract: A system and method of repairing a pipe including securing a reinforcing material, such as a dry fiber structure (e.g., a carbon fibers) to the surface of the pipe. A polymeric material is placed on top of the reinforcing material, self-penetrating the dry fiber structure. The polymeric material substantially saturates the reinforcing material and cures to form a reinforced polymeric composite which may increase or restore the pressure rating or operating pressure capacity of the pipe. Optionally, an outer containment component, such as a sleeve, shell, box, wall, outer pipe, and so on, may be installed around the reinforcing material prior to introduction of the polymeric material. In this case, the polymeric material may be placed (i.e., poured) into the interior of the containment component on top of the reinforcing material.

Abstract: A system and method of repairing a pipe including securing a reinforcing material, such as a dry fiber structure (e.g., a carbon fibers) to the surface of the pipe. A polymeric material is placed on top of the reinforcing material, self-penetrating the dry fiber structure. The polymeric material substantially saturates the reinforcing material and cures to form a reinforced polymeric composite which may increase or restore the pressure rating or operating pressure capacity of the pipe. Optionally, an outer containment component, such as a sleeve, shell, box, wall, outer pipe, and so on, may be installed around the reinforcing material prior to introduction of the polymeric material. Further, the polymeric material may be subjected to pressure to facilitate contact of the resin through the reinforcing material.

Abstract: A system and method of repairing a pipe including securing a reinforcing material, such as a dry fiber structure (e.g., carbon fibers) to the surface of the pipe. An outer sleeve is installed around the reinforcing material. A polymeric material is placed (e.g., poured) into the interior of the sleeve around the reinforcing material. External pressure is applied to the sleeve. The polymeric material substantially saturates the reinforcing material and cures to form a reinforced polymeric composite which may increase or restore the pressure rating or operating pressure capacity of the pipe.

Abstract: A pipeline repair system includes a sleeve adapted to permanently enclose an outer surface of a longitudinal section of a pipeline having a defect. The sleeve includes two or more longitudinal segments of a cylinder joined at the longitudinal edges to form a sleeve with a first and second radial ends. The sleeve is sealed at the radial ends forming an enclosed annular space between the pipeline and the sleeve. An injection port assembly on the sleeve is adapted for temporary connection to an external source of pressurized material. The pressurized material may be a fluid, gas, or slurry. After filling the annulus with pressurized material, the port assembly is sealed. The permanent sleeve receives a majority of the tangential (hoop) stress load from the section of pipeline via the pressurized material in the annular space and may receive a portion of the longitudinal stress load from the section of pipeline.

Abstract: A method and apparatus are provided for connecting a branch onto a pipeline assembly having a radial circumference and an axial length without stoppage of passage of flow of a fluid through the pipeline assembly. The method includes mounting a sleeve around a portion of the radial circumference of the pipeline assembly. The sleeve comprises a first sleeve portion and a second sleeve portion, and the first sleeve portion comprises a cutting tool and the second sleeve portion comprises a branch for connection onto the pipeline assembly. The method includes securing the sleeve to the pipeline assembly. The pipeline assembly is milled to create an aperture of a length and width at the desired location by use of the milling machine; and the sleeve is rotated radially so that the second sleeve portion is aligned with the aperture. The branch is connected onto the pipeline assembly while the second sleeve portion is aligned with the aperture.