Patent ID: 6536991
Filing Date: 2003-03-25
Classification: E02B,E02D

Abstract:
A method of structurally reinforcing an assembly of tubular members in a :marine environment, the assembly including a smaller diameter flow casing inside of a larger diameter conductor pipe, providing an annulus in between the flow casing and conductor pipe comprising the steps of:a) placing a plurality of lug anchor points in the annulus, in between the smaller diameter flow casing and the larger diameter conductor pipe; b) pumping a volume of a first grout product into the annulus at a selected, lower elevational position; c) pumping a volume of a second grout product into the annulus at a position above the first grout product; d) placing a jacket around the larger diameter conductor pipe; e) placing a reinforcement cage in between the larger diameter conductor pipe and the jacket; f) pumping a volume of a third grout product into the space between the jacket and the larger diameter conductor pipe; and g) wherein in step â€œfâ€  the third grout product encapsulates the reinforcement cage.