| 摘要 |
A method and apparatus for structurally reinforcing a tubular member, or an assembly of tubular members in a marine environment is provided. The assembly includes a smaller diameter inner flow casing and a larger diameter outer conductor pipe, providing an annulus in between the flow casing and the conductor pipe. The method first dewaters the annulus places a plurality of lug anchor points in the annulus, in between the smaller diameter flow casing and the larger diameter conductor pipe. A volume of a first grout product is then pumped into the annulus at a selected lower elevational position. A volume of a second grout product is then pumped into the annulus at a position above the first grout product. A jacket is placed around the larger diameter conductor pipe, the jacket preferably being of variable diameter sections so that a larger upper section can receive a reinforcement cage. A reinforcement cage can be placed in between the larger diameter conductor pipe and the jacket. A volume of a third grout product is then pumped into the space in between the jacket and the larger diameter conductor pipe, wherein the third grout product encapsulates the reinforcement cage and bonds to both the conductor pipe and the jacket. A carbon fiber wrap can be wrapped spirally about the jacket and adhered thereto with adhesive or penetrant.
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