Abstract: Composite laminated tubing with low coefficient of thermal expansion and preferably a Poisson's ratio near 0.5 is used for production tubing which is subject to substantial expansion and contraction.

Abstract: A composite tubular member having an outer cylindrical member containing fibers oriented to resist internal pressure while providing low bending stiffness, an inner smaller centrally located core member located near the neutral axis of the composite tubular member and containing fibers oriented to provide high axial stiffness, high tensile strength and low bending stiffness. One or more web members contain fibers oriented to resist shear stress, and connect the outer cylindrical member and the inner core member to form at least two separate cells within the composite tubular member. The web member forms a major and minor moment of inertia within the tubular member to create a preferred bending direction. Conductors are formed integral to the connecting web member for transmitting energy signals through the tubular member.

Abstract: Well tools are run into a well, usually a deviated well, using a composite wireline cable made up of a bundle of parallel slidable composite rods and electrical or optical conductors covered with a flexible protective sheath. The cable is stored on a spool and from there it is run into and retrieved from the well.

Abstract: A wire line cable in which composite rods are spaced apart and axially disposed between a flexible, elongated, membrane which can be pressurized and a flexible outer protective sheath surrounding but separate from the membrane.

Abstract: A composite tubular member having an outer cylindrical member containing fibers oriented to resist internal pressure and provide low bending stiffness, and two inner smaller core members located near the neutral axis of the composite tubular members containing fibers oriented to provide high axial stiffness, high tensile strength and low bending stiffness and fibers oriented to resist shear stress, positioned opposite each other and adjacent to the inner walls of the outer cylindrical member.

Abstract: An electrical cable in which composite rods and electrical conductors disposed between a flexible, elongated, membrane which can be pressurized and a flexible outer protective sheath surrounding but separate from the membrane, provide a pressure stiffened cable assembly that can be run into deviated boreholes.

Abstract: A composite tubular member having an outer cylindrical member containing fibers oriented to resist internal pressure while providing low bending stiffness, an inner smaller centrally located core member located near the neutral axis of composite tubular member containing fibers oriented to provide high axial stiffness, high tensile stremgth and low bending stiffness and web members containing fibers oriented to resist shear stress, connecting the outer cylindrical member and the inner core member to form at least two separate cells within the composite tubular member.

Abstract: Well tools are run into a well, usually a deviated well, using a composite wireline cable made up of a bundle of parallel slideable composite rods covered with a flexible protective sheath.

Abstract: The drilling of highly angulated wellbores (with a rotary rig having a drill string terminated with a bit wherein drilling fluid is employed) is improved by employing in the highly angulated drill string a length of drill pipe which has a helical ridge disposed thereabout such that the flight of the helical ridge is wound so as to rise from the bit with the rotation of the drill string and the height of the helical ridge above the length of the surface of the drill pipe is 1 to 15 percent of the diameter of the drill pipe.

Abstract: A wire line cable in which composite rods are spaced apart and axially disposed between a flexible, elongated, membrane which can be pressurized and a flexible outer protective sheath surrounding but separate from the membrane.

Abstract: A spike and socket cable termination assembly includes an outer socket having a substantially conical bore disposed therethrough with the bore having a smaller first open end and a larger second open end. The socket is constructed of a first material. A cable has an end portion thereof received through the smaller first open end of the substantially conical bore. A spike having a substantially conical outer surface is received through the larger second open end of the conical bore and in a center portion of the cable end portion with strands of the cable distributed in a substantially conical shape between the spike and socket. The spike is tightly wedged in the socket so that strands of the cable are held in place between the spike and socket. The spike is constructed of a second material having a modulus of elasticity substantially greater than the modulus of elasticity of the first material from which the socket is constructed.