Patent ID: 6474701
Filing Date: 2002-11-05
Classification: B21D,E21B,F16L

Abstract:
A tubing connector body of the type for joining oil or gas well tubing string to coil tubing connected to a tube of oil or gas well tubing string for use downhole in oil or gas well operations, the connector body comprising a male/spigott end portion fitted concentrically within a corresponding end of the tube, the end portion having a plurality of depressions or holes preformed to receive and coinciding with localised depressions formed by plastic deformation of the walls of the tube whereby the connector body and tube are connected together; in combination with a jig, wherein the tubing is locally depressed into mating engagement with the connector body by mounting of the jig over the tubing, the jig having dimple-forming pins, each adapted to be pressed by pneumatic or hydraulic ram to form the dimples, wherein the jig is formed as a segmented sleeve which is assembled and disassembled around the connector body.