Methods and Means for Installing, Maintaining and Controlling a Self-Standing Riser System

摘要

Improved systems and methods for installing, maintaining and controlling a self-standing riser (SSR). SSRs are installed using wire pulleys or weights to place the SSRs over a wellhead. A flow diverter, which may be incorporated into or separate from a buoyancy chamber, allowing diversion of flow both into and out of an SSR. Non-annular buoyancy chambers configured to receive a riser of an SSR through a slot of the buoyancy chamber.

主权项

1. A method of installing a riser of a self-standing riser system, comprising:
placing the riser above a wellhead; and attaching the riser to the wellhead; wherein the riser is placed above the wellhead using at least one of a weight attached to the riser and at least one pulley wheel attached to the wellhead.