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RESPONSE PROJECT
RESPONSE PROJECT
RESPONSE PROJECT
RESPONSE PROJECT
Enhancing international subsea well incident intervention
While we hope intervention equipment will never be needed, it is critical for the industry to be prepared”
Robert Limb, Chief Executive, Oil Spill Response Ltd
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For the first time on this scale, the world’s leading oil spill response organisation and several major oil and gas companies are working together to enhance international subsea well incident intervention capabilities.
Capping Stack System and Subsea Incident Response ToolkitThe SWIS capping subscription includes capping and dispersant equipment that can be deployed internationally in the event of a subsea well control incident.
The integrated system builds on existing industry experience and has been designed following research into potential incident scenarios and geographic variations in weather, ocean and oil conditions.
Key features• The intervention system includes:
o Four capping stack systems
o Two subsea incident response toolkits including equipment for the subsea application of dispersant at a wellhead, debris clearing, site surveys and manual BOP intervention
• Equipment is stored and maintained in Norway, Singapore, South Africa and Brazil for swift international deployment by sea and/or air
• The intervention system is designed to handle most subsea oil well incident scenarios around the world.
Oil Spill Response Ltd (OSRL) and the Subsea Well Response Project (SWRP) are collaborating to make new intervention equipment available to the industry.
The capping, dispersant, containment and offset installation equipment is designed for a variety of conditions and aims to enhance the industry’s ability to prepare for and respond to a subsea well control incident.
Companies across the oil and gas industry have the opportunity to benefit from this intervention equipment through OSRL membership and supplementary subscription agreements to OSRL’s Subsea Well Intervention Services (SWIS).
Collaborating to enhance international subsea well control capabilities
Standardised Capping Platform
Outlets with Dual 5 ¹⁄₈”15k Gate Valves
Retrievable Choke
ROV Panel
Lower Connector
Flow Line Connector
Acoustic Transponder
The 10k system
Dual 7 ¹⁄₁₆” 10k Gate Valves
7¹⁄₁₆” 10k API Hub
ROV PanelLower Connector
Flow Line Connector
Acoustic Transponder
Retrievable Choke
Outlets with Dual 5 ¹⁄₈”15k Gate Valves
The 15k system
18¾” Dual 15k Rams
Retrievable Choke
Acoustic Transponder
Outlets with Dual 5 ¹⁄₈”15k Gate Valves
Lower Connector
H4 Mandrel
ROV Panel
Flow Line Connector
The four capping stacks (both full bore and reduced bore) are designed into a standard configuration with common pipework, valves, chokes and spools all rated to 15kpsi.
The key difference is the use of 7 ¹⁄₁₆” 10k gate valves for the 10k stacks and 18¾“ 15k rams for the 15k stacks.
Emergency preparedness
Capping stack systems The four capping stack systems are comprised of two 18 3/4” bore capping stacks developed to handle pressure up to 15kpsi with closing Blow Out Preventer (BOP) blind rams technology and two 7 1/16” bore capping stacks designed for pressure up to 10kpsi, with closing gate valve technology.
All four stacks are designed from one common core structure giving greater component compatibility and flexibility to handle a variety of scenarios.
The capping stack systems have been designed, optimised and standardised to meet the majority of anticipated oil well conditions in deep water drilling around
the world. Offset installation techniques are also being evaluated for scenarios where it is not possible to gain vertical access to the wellhead.
• Capping stack systems are designed to handle pressure up to 15kpsi
• Designed for subsea wells in water depths up to 3000m
• Transportable by sea and/or air
• Available for international use, excluding US and ice-prone waters
Subsea Incident Response ToolkitThe subsea incident response toolkits include equipment for subsea dispersant injection, debris clearance and BOP intervention providing first response
capability. Subsea application of dispersant at the wellhead is an integral part of capping operations. It creates safer surface working conditions for response personnel and enhances the degradation of the oil.
The kit also includes site survey tools, dispersant wands, associated manifolds and hoses, as well as debris clearing equipment with cutting, grappling and dragging tools to gain early access to the BOP where necessary. Additional equipment that could be rapidly deployed to manually activate the BOP while debris is cleared and capping equipment mobilized, could potentially provide an early shut off of the incident well.
Containment Toolkit and GuidelinesOSRL and SWRP are collaborating to provide subscribers with a toolkit of containment equipment and subsea well containment guidelines to enhance the industry’s capability to respond to a subsea well incident.
The containment toolkit is designed to supplement standard industry well test hardware to create a containment system. The toolkit comprises long-lead equipment not currently readily available in the industry and minimises response times by allowing a responding well operator to draw on existing resources.
The guidelines outline a subsea well containment concept that can be used by the well owner/operator to help develop a well-specific containment response plan.
The Master Guide for Response Planning has also been created to advise on capping and containment pre-planning.
Effective incident response relies on the timely transportation and deployment of equipment at the incident site. The intervention equipment is designed to be rapidly transportable by sea and/or air from international storage locations.
These locations were selected for their international reach, strong sea/air transport links, to reduce logistical challenges and to further enhance international readiness.
The equipment is stored and maintained ready for transportation at locations close to ports and airports. In the event of an incident the equipment will be delivered to its airport/port for onward transportation by the well owner/operator.
Storage, transportation and deployment
D
One international air freightable set of containment toolkit components (stored at original manufacturers’ facilities)
Regional containment toolkit component sets
Planned storage location for OIE
Capping/dispersant locations (dispersant indicated by ‘D’ icon)
D
Offset Installation Equipment Offset installation equipment is currently being developed and tested for use in the event of a subsea well incident where vertical well access by vessel is not possible. It is planned to enable responding personnel to remove debris or install capping, containment or related equipment at a safe offset distance from an incident site:
• OIE is designed to be deployed up to 400-500m offset from an incident site
• OIE is designed for use in a working depth range of 75-600m
• Compatible with OSRL’s capping and
containment equipment
• It is anticipated that OIE will be appropriate for a range of operations including the deployment of a capping stack or containment equipment. It can also be fitted with cutting shears to remove debris
The OIE system consists of the following subsystems: a carrier with adjustable buoyancy; a winch system to control the carrier position and lift payloads; a cardan joint for cap fine positioning; and a control system to control all functions.
The ballast is provided via four air ballast tanks that are supplied with air via a dedicated umbilical. This buoyancy provides sufficient flexibility to carry various response equipment payloads. The winch system with pay-out and tension sensors helps positional control and is stabilized with mooring and pennant lines that provide a combined lifting capability of up to 200mT.
The cardan joint provides both the capability to align and lower the capping stack (or other response equipment) onto a tilted blowout preventer.
Containment Toolkit The containment toolkit comprises long-lead components which can be used with standard vessels and well test packages to create a subsea well containment system.
The flexible flowlines and jumpers are stored in three regional sets in Brazil, UK and Singapore. All other containment toolkit components are air-freightable and stored at the original equipment manufacturers’ facilities in the UK, USA and Norway.
Master Guide for Response Planning and Containment GuidelinesThe master guide is designed to help subscribers build capping and containment into their well contingency plans. These plans are typically developed by a well owner/operator as part of subsea well planning and integrated into wider well emergency preparedness.
The containment guidelines are a suite of documents which describe the subsea well containment concept to subscribers.
They also outline the template system (derived from the containment concept) and the suggested preparations to be carried out by a well owner/operator to help both to develop their own subsea well containment response plans and also to support their preparations for any potential emergency response to a subsea well incident.
OIE carrier maneuvering the capping stack
How can I gain access to the equipment?Companies across the oil and gas industry have the opportunity to gain access to SWIS through membership of OSRL and supplementary subscriptions:
• Capping stack system and subsea incident response toolkit
• Containment toolkit and guidelines
• Offset installation equipment (planned availability in 2016); OIE is planned to be available to capping subscribers via a separate supplementary agreement
Companies are encouraged to subscribe to all services.
What is OSRL?OSRL is the largest international industry-owned co-operative and global provider of oil spill response and preparedness services. This includes not only rapid response to oil spills in different parts of the world, but also the provision of training, consultancy and other support services to help reduce the impact of an oil spill. OSRL’s members account for a significant proportion of global oil production.
OSRL’s collaboration with SWRP enhances the breadth of expertise and equipment OSRL members can access in response to an oil spill. Arrangements like
this are at the heart of OSRL’s constant ambition to further develop and improve response capacity for major incidents and oil spills around the world.
What is SWRP?The Subsea Well Response Project is a non-profit initiative between several major oil and gas companies, working together to enhance the industry’s capacity to respond to subsea well incidents.
It was launched in May 2011 between BG Group, BP, Chevron, ConocoPhillips, ExxonMobil, Petrobras, Shell, Statoil and Total, on the recommendation of the International Association of Oil & Gas Producers (IOGP).
SWRP completed its core objectives with the delivery in 2013 of four capping stack systems and hardware for the subsea application of dispersant, debris removal and BOP intervention which are now available to the industry via OSRL.
Going beyond this core objective, several SWRP members also delivered containment equipment which is available for international use from 2015. SWRP is also designing offset installation equipment for use by oil and gas producers around the world from 2016.
International cooperation is at the heart of our approach to enhance incident response capabilities across the industry. This new equipment builds on expert study and positive input from industry regulators and will further enhance subsea drilling safety.”Andre Bouquet, Offset Installation Lead, Subsea Well Response Project
“Working together and sharing resources across the industry benefits everyone involved, bringing greater expertise, more specialist equipment and more flexible deployment.”Robert Limb,Chief Executive, Oil Spill Response Ltd
“ The oil and gas industry faces a continuous challenge to improve safety. Maintaining well integrity remains the utmost priority, but the industry must be prepared to control a flowing well with ever greater speed and efficiency, in the unlikely event of an incident. These capping and containment systems are a valuable addition to subsea well incident intervention capabilities that we hope will benefit our members, the international oil and gas industry and the environment.”Michael Engell-Jensen, Executive Director, International Association of Oil & Gas Producers
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Subscriptions
Oil Spill Response Ltd (OSRL)Lower William Street Southampton SO14 5QE United Kingdom
Tel: +44 23 8033 1551Email: [email protected]
The Subsea Well Response Project (SWRP)Norske Shell Tankvegen 1 Tananger PO Box 40, 4098 Tananger, Norway
Email: [email protected] www.subseawellresponse.com
To find out more about gaining access to the equipment, please contact: [email protected]
