In the unlikely event of a subsea well control incident, the Offset Installation Equipment (OIE) allows installation of one of the OSRL Capping Stacks from a safe offset distance.
- If the hydrocarbon discharge rate from the incident well creates hazardous surface conditions unsuitable for operations directly above the incident well due to surface boil and high Volatile Organic Compound (VOC) and Lower Explosive Level (LEL) levels, an exclusion zone up to 500m radius may be put in place.
- The OIE will enable the operator to safely install the Capping Stack from vessels located outside the exclusion zone and soft shut in the well.
- The OIE system is stored at OSRL’s storage facility in Trieste, Italy, and with it’s 234 mts weight, requires a large construction vessel for deployment.
- The OIE is designed to operate between 75 to 600msw depth.
- SWR-WG-EN-DSB-00001 Offset installation System – Basis of Design
- SWR-TE-UA-PRO-00010 Installation Procedure of Capping Stack
- SWR-SP-EN-REP-41654 System Description
- SWR-SP-OA-PRO-41521 Carrier towing procedure
- SWR-SP-OA-PRO-41515 OIS – GENERAL OFFSHORE INSTALLATION PROCEDURE
- SWR-SP-OA-PRO-41516 Pulling line and Drag Chain Operations Procedure
- SWR-SP-OA-PRO-41517 Horizontal Umbilical Installation Procedure
- SWR-SP-OA-PRO-41943 Vertical Umbilical Deployment and Recovery Procedure
- SWR-SP-OA-PRO-41518 OIS subsea items deployment procedure
- SWR-SP-OA-PRO-41519 Procedure for Carrier deployment and Subsea operations
- SWR-SP-OA-PRO-41603 Guideline for planning an Offshore OIS intervention
- SWR-SP-OA-DWG-41212 OIS - Subsea Layout drawing
- SWR-SP-OA-SPE-41579 Marine spread specification for OIS intervention
- SWR-SP-OA-REP-42029 Study on impact of use of dropped anchor for OIS
- SWR-SP-OA-SPE-41526 GUIDELINE FOR SURVEY AND POSITIONING
OIE Carrier Assembly
OIE Load Out/SIT
Offset Installation Concept