Response-ready capping device and subsea incident response toolkit for UKCS operations
The OSPRAG capping device was explicitly developed for subsea wells in the UK Continental Shelf (UKCS), providing a capping solution in the unlikely event of a subsea well blowout. It can be deployed rapidly to the broadest possible range of wells and oil spill scenarios in the UKCS, including west of Shetland. Through enhanced membership coverage, our members operating within the UKCS can access the OSPRAG capping device and subsea incident response toolkit (SIRT).
Designed to seal off an uncontrolled well, the OSPRAG capping device minimises environmental damage and buys valuable time for engineers to develop a permanent solution. It interfaces directly with the blowout preventer (BOP) or wellhead and is located near Aberdeen, ready for immediate mobilisation to the quayside.
The SIRT provides first-response remotely operated vehicle (ROV) debris clearance and intervention tooling, enabling safe and efficient access to the wellhead. Packaged in two 20-foot containers, the toolkit is strategically located in Aberdeen to ensure fast and effective deployment, supporting subsea well response activities.
The capping device and SIRT can integrate into your source control emergency response plan (SCERP), supported by our technical experts.

OSPRAG Capping Device FAQs
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The capping device is stored in a ready-to-use state to allow for rapid mobilisation to the quayside. OSRL can assist with the generation of response time models (RTMs) to help demonstrate response readiness.
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The OSPRAG capping device is designed for subsea wells across the UKCS, including West of Shetland. OSRL can carry out interface checks with the BOP or wellhead to determine compatibility as part of the source control emergency response pan (SCERP).
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OSRL can provide technical and logistical support for the mobilisation of the capping device and SIRT.
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The OSPRAG capping device allows connection to a surface vessel for direct intervention, enabling well kill or controlled flow back operations.
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