SMIS

The field-proven OneSubsea subsea modular injection system (SMIS) was the first of its kind to complete riserless hydraulic access intervention in Malaysia.

SMIS is a hydraulic intervention package that combines an injection conduit of openwater coiled tubing with a subsea injection skid or barrier package, complete with dual-barrier valves, integral fail-safe control system, and weak-link connector.

The subsea injection skid can interface with any subsea interface via the MARS multiple application reinjection system or a dedicated interface. A flexible jumper between the subsea injection skid and the subsea interface minimizes risk to the host structure.

The single, large-diameter coiled tubing conduit design is simple to manage and enables an increased flow rate. The use of larger-diameter coiled tubing in this application is made possible by the addition of several proprietary technologies that facilitate safe fatigue management while in service. A secondary circulation line is used in applications where required.

Broad range of applications

The system can be used for a variety of chemical injections, such as scale squeezes, acid stimulation, flushing applications, hydrate remediation, and well kill. It can be deployed on short notice as a rental service from a vessel of opportunity, delivering solutions efficiently and with lower intervention costs.

Efficiency-optimizing features

• Rigless fluid injection
• Modular system architecture
• Highly flexible conduit design to suit a broad range of operating depths and dynamic conditions
• Various available subsea interfaces, including MARS system choke access technology, which can be installed using standard running tools and procedures
• Mudmat-landable subsea barrier package to reduce risk to the subsea architecture