Abstract: Composite products and related methods are disclosed. In some examples, methods of filament winding composite components and products, such as a sleeve and/or a mandrel for use in down-hole applications, are disclosed. The winding of components can involve using a percentage of fiber roving strands that are blown during manufacture such that they have fiber loops that when wound as layers forms bridges across the discrete layers to enhance the inter-laminar strength of the composite product.

Abstract: A new resin blend is disclosed, which may be referred to as a hybrid resin. The resin blend includes an effective amount of benzoxazine resin or benzoxazine derivative mixed with at least one of epoxy resin, phenolic resins and other thermosetting polymers at varying ratios. The new resin blend has enhanced hot/wet performance in down hole frac and bridge plug applications in a cost effective manner with ease of processing.

Abstract: Composite products and related methods are disclosed. In some examples, methods of filament winding composite components and products, such as a sleeve and/or a mandrel for use in down-hole applications, are disclosed. The winding of components can involve using a percentage of fiber roving strands that are blown during manufacture such that they have fiber loops that when wound as layers forms bridges across the discrete layers to enhance the inter-laminar strength of the composite product.

Abstract: A composite tube made from a combination fiber and epoxy is disclosed. The tube may be made by filament winding although other materials and processes are suitable. In one example, the tube laminate is a mix of axial and helical fibers tailored to meet the stiffness and strength requirements of the particular application. Fibers having a different modulus may also be mixed to meet axial and torsional stiffness requirements. For example, high modulus fibers may be used in a helical pattern to handle high torque loads while lower modulus fibers may be used for the remaining portion of the tube laminate. The composite tube may be used for load and/or torque bearing applications and can include a support tube pressed fit into an end of the tube.

Abstract: A composite cone assembly for use with a frac or bridge plug system is discussed herein having shaped outer contours and the strength needed for high pressure applications but with reduced machining requirements by forming part of the cone assembly from a high strength fiber material and the contoured surface from molding, such as from injection molding or compression molding.