Pipe coupling
AssigneeMorph Packers Limited
InventorsPeter Wood, Daniel O'Brien
Life of this patent
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Abstract
A coupling system between tubulars such as tubing, pipes, casing and liner for location in a well bore in which profiled sections (46, 50) on the tubulars (12, 14) are connected using a radially applied force to form a metal to metal sealed connection. Embodiments are provided in which the profiled sections are grooved and/or tapered, additional profiles are provided to prevent relative rotation of the tubulars, the radial force is applied inwardly, outwardly or in both directions, and a connector is used as an additional tubular member to form the coupling.
Claims13
A non-threaded coupling system between first and second tubular members comprising:
- a first tubular member having a first end with an inner surface and an outer surface, a first profiled section extending circumferentially and continuously around the outer surface and the inner surface being co-linear with a central axis of the coupling system;
- a second tubular member having a first end with an inner surface and an outer surface, a second profiled section extending circumferentially and continuously around the inner surface, the outer surface being co-linear with a central axis of the coupling system;
- the first end of the first tubular member being inserted within the first end of the second tubular member so that the profiled sections are coaxial and by application of a force applied radially inwards on a surface opposite a profiled section in a direction orthogonal to the central axis, creating a metal to metal seal between the tubular members at the profiled sections.
Dependencies are inferred from the claim text.