Activate Us

Our activation procedure including contact details and forms for activation, in addition to equipment stockpile and aviation status reports can be found here.

Emergency Contact Numbers

Please note that:

Response services are guaranteed ONLY for Members. Non-members are not guaranteed a response and will be required to sign a Non-member contract. Services and rates differ. Duty managers can be contacted for exercises.

Oil Spill Response Limited Oil Spill Response Limited
SWIS Appreciation Site

Equipment Handling

This section provides information related to the handling of the Subsea Well Intervention Services (SWIS) equipment.

The Incident Owner takes custody of the equipment at either the quayside (mobilised by vessel) or cargo handlers at the departure airport (mobilised by air).
The Incident Owner will require a range of information to safely and effectively handle the equipment.
This section details the information provided by OSRL in the event that the equipment is mobilised:

  • Equipment build standards
  • Lifting certificates
  • Handling guidelines
  • Shipping skid specifications
  • Container specifications
  • Sea fastening guidelines
  • Handover certificates

Capping stack system.jpg

The Capping Stack System is available in a variety of deployment configurations. This includes the choice of well head connections and spacer spools to allow access to various subsea structures and to overcome clash points.

The SWIS bases have been strategically positioned to enhance international subsea well intervention capabilities and limit the logistical challenges involved in global deployment.
Brazil and Norway bases each have a 15k PSI CSS and a SIRT. Singapore and South Africa bases each have a 10k PSI CSS. These locations were selected for their international coverage and strong transport links by both sea and air.
At each base dedicated staff will ensure the response readiness of all equipment and act as a focal point for mobilisation activities. The staff include a base manager, base administrator and several oil spill response specialists. The SWIS bases will be supported by OSRL's main bases in Southampton and Singapore and will receive regular inspections from OSRL's in-house Subsea Team.

For more details about the OSRL bases, visit the Location Section in the Introduction.


Maintenance will be carried out on the equipment at each base in accordance with manufactures' specifications and follow the industries method of best-practice.
The CSS are subject to quarterly maintenance and testing which will be carried out at the respective base by Trendsetter engineers and will be overseen by OSRL's in-house Subsea Engineering Team.
The SIRT are subject to 6 monthly maintenance and testing which will be carried out by Oceaneering engineers local to the respective SWIS base.

Mobilisation - Maintenance.jpg

The CSS are stored fully assembled, seated on a self propelled modular transporter or trolley ready to be moved out to the quayside in the event of a deployment.
The SIRT are stored in ISO containers ready to be loaded on to vehicles and delivered to sea or airport.

Cap storage.jpg

The Capping Stacks were designed to interface with the majority of subsea wells; therefore, the Capping Stack is of a modular construction enabling the substitution of components to make it suitable for different wells.

The Capping Stack can be configured with either the H4 or HC wellhead connector and with or without a 1, 2 or 3 metre spacer spool.
The choice of Capping Stack includes two 15k PSI (Brazil and Norway) and two 10k PSI (Singapore and South Africa).

Capping details.jpg

In accordance with the obligations of OSRL, liability for all SWIS equipment transfers from OSRL to the Incident Owner upon leaving the storage location.
OSRL are responsible for the mobilisation of all SWIS equipment to the handover point identified, being either the quayside at the designated departure port or the cargo handlers at the designated departure airport. At this point custody of all equipment transfers from OSRL to the Incident Owner. After the handover point the Incident Owner will be responsible for all transportation, rebuilding, testing, deployment and operation.
Upon completion of the operation, the Incident Owner is responsible for recovering the equipment and the reverse logistics involved in returning the equipment to OSRL at the handover point identified below.


Incident Owner provides
The Incident Owner must download, complete and return the following forms to OSRL in order to mobilise SWIS assets:

  • Notification Form
  • Mobilisation/authorisation form
  • SWIS Capiing Stack Equipment Identification and Configuration Form
  • SWIS deployment indemnity form. Please note: the member should print and complete the form, then scan it and email to OSRL.

OSRL provides
In conjunction with mobilising SWIS assets OSRL will also provide the Incident Owner with the following:

  • Pro-forma invoice
  • Packing lists
  • Commercial invoice
  • Load summary
  • Dangerous goods notes
  • Equipment build standards
  • Lifting certificates
  • Handling guidelines
  • Container specifications
  • Shipping skid specifications
  • Sea fastening guidelines
  • Handover certificates

Incident Owner supplied Assets:

The Incident Owner is responsible for supplying the following assets:

  • Transportation vessel or plane
  • Trucks in-country
  • Lifting asset for rebuild/loading onto deployment vessel
  • Deployment vessels
  • ROVs
  • Coil tubing (or alternative)
  • Topside dispersant injection equipment
  • Ancillaries

OSRL supplied Assets:

OSRL is responsible for supplying the following assets:

  • Requested SWIS equipment
  • SPMT/trucks for delivery to handover point identified

Capping stack.jpg



All documentation is available on the OSRL EDMS (Electronic Document Management System). For access to this site please contact your Subscriber Technical Advisory Forum (STAF) representative or contact the OSRL document controller via