New hydrate skid offers innovative deepwater remediation solution

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Developed by i-Tech 7, the next generation hydrate remediation skid (HRS) incorporates smart, real-time software to efficiently remediate and prevent the potentially harmful build-up of hydrate in subsea production facilities.

Built and successfully trialled in the Gulf of Mexico during 2018, the HRS is suitable for deepwater operations up to 3,000m (10,000ft). Designed to interface with both work and heavy-duty work class ROVs, it can be integrated with any ROV on the market.

Unlike other conventional skids, the power supply is built into the unit which allows the distribution of power across to the skid to be completely isolated from the ROV power.

Intelligent hydrate removal

While the flow rate performance (configured with redundant pumps) is typical of conventional ROV-mounted pumps (2gpm/7.5 lpm), it can operate at 6,000 psi (415 bar) in atmospheres with more than 3,000m hydrostatic pressure. Its enhanced automated controls can depressurise small volume production piping infrastructure down to 15 to 30 psi Absolute (1 to 2 bar).

Electronically actuated valves with position feedback offer a significant advantage in reliability, automation and resolution control enabling greater system flexibility to accurately monitor the interaction and behaviour of the hydrocarbon contents of the operator’s pipeline. With comprehensive topside software control, the operator thereby has more precise capabilities to accurately monitor pressures and flows.

Safer and enhanced operations

High accuracy instruments allow for high fidelity measurements of pressure versus volume recordings, which can aid in determining the approximate locations of blockages. While better diagnostics allow more efficient and accurate decision-making for well stimulation planning.

Without the need for any further reconfiguration to the system, the HRS can be used to inject fluid, through a metering valve, of very precise amounts of dosing chemicals into the subsea asset. It can also be used for many applications such as ROV workover control, hydrotesting, back seal testing, and other various fluid injection activities.

As an integrated component of the company’s Life of Field service offering, the advanced instrumentation and controls minimises the impact of an unplanned shutdown and any risks associated with downtime.

Download specification sheet here

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