The tools are executed in the well by the WWP. Containment in a pressure box eliminates potential problems such as oil leaks in the surrounding water or seawater penetration into the well. The winch has a 7,620 m electric single-director electrical wire to carry the response tools into the well. A control cabin on the ship has a software-controlled fly-by-wire interface to control and order the different packages fully automatically. The controls are all underwater hydraulics, which means there are no hydraulic lines back to the surface. To ensure safe and efficient operation, underwater video cameras and an ROV are an integral part of the system. The Gulf of Mexico, on the other hand, was there for interventions on a sublime basis. Historically, Uncle John and the Q4000 were the first Gulf ships to be the two ascender ships and thus somewhat dictated the market. But problems such as access due to the prevalence of horizontal trees and the concern to unplug catches with sand control issues have led to a preference for crack access to crack-free operations. A combination of operational efficiency and contractual opportunities can be used to improve overall operation and project cost. The application of the amended lump sum contract applied to these transactions under the full control of the service companies. B, such as investment and rig-down operations, combines minimal project risk with maximum margin capitalization. Ultimately, thanks to the full participation of the industry, the Holy Grail would be the ability to use data analytics for nearby underwater well operations.

Thus, the current market place is a bit crowded with options. But a closer look at the methods of intervention of underwater wells should shed light on the needs of suppliers and end consumers. In addition, an active heave compensation system linking staff access to well service equipment allows for compensated access to the higher climb and eliminates in-service driving requirements. Future vessels in the form of Helix ships for Brazil see this approach maintained with large elevator structures that include a “Walk to Work” bridge system to promote staff access to higher climb and well-functioning equipment. It is likely that in the future this approach will be considered normal in terms of minimizing the risk of the personal interface with the devices. Ultimately, developments to completely eliminate personnel access requirements will be part of the next generation of response vessels. The systems and methods disclosed here may be used in one or more operations related to well closure, flow tests, well diagnostic work, well stimulation, well transfer, bullheading operations, well constipation and/or well exit where underwater trees or wellheads are installed. The other advantages of inventive systems and procedures are: If the systems of this disclosure are to be included safely, this can be initiated from any ESD station and may include an underwater ignition and/or an emergency stop depending on the situation.

When an underwater and emergency stop is required, there is a sequence closure of the scissors, insulation valves (tor) and separation of connections.