Riserless modular subsea well intervention, method and apparatus
AssigneeSaipem America Inc.
InventorsCharles Boyce, William Bath
Life of this patent
Estimating the term…
Abstract
A subsea well intervention system that permits dynamic disconnection from subsea well intervention equipment without removing any of the equipment during a drive-off condition is provided. The system includes a blowout preventer module operatively connected to a subsea tree and a subsea control system. The subsea control system is connected via electrical jumper to an ROV's tether management system. The subsea control system is connected via hydraulic jumpers to a multipurpose fluid-injection skid and one or more hydraulic accumulation banks. A fail-safe disconnect assembly is utilized with respect to the electrical jumper in order to provide easy removal during a drive-off condition.
Claims4
A method for constructing a riserless subsea well intervention system, comprising:
- connecting a blowout preventer module to a subsea tree;
- connecting a subsea control system module to the blowout preventer;
- establishing an electrical communication link between a surface control console and the subsea control system module;
- and
- establishing a fluid connection between the subsea control system module and A source for hydraulic power.
Dependencies are inferred from the claim text.