The Bureau of Safety and Environmental Enforcement (BSEE) on 9 March released the panel investigation report on the 11 May 2016 subsea jumper leak on a platform operated by Shell Offshore. The leak from Green Canyon Block 248 occurred on Subsea Well 4, resulting in an estimated release of 1,926 bbl of oil.
The BSEE investigation panel concluded that the loss of containment in the Glider subsea system was caused by the ductile/tensile overload fracture of the load-limiting joint of the Glider 4 jumper. The ductile/tensile overload fracture was caused by the bending loads imposed as a result of the partial burial of the Glider 4 jumper and subsequent subsiding of Subsea Sled 2.
The panel recommends that, when drilling the riserless portion of a subsea well in the vicinity of other subsea infrastructure (i.e., pipelines, sleds, subsea wells), operators need to ensure the resulting drill cuttings and cement are not adversely affecting or posing additional risks to existing subsea infrastructure.
Find the report here (PDF).
Find the safety alert here (PDF).
Don't miss our latest HSE content, delivered to your inbox twice monthly. Sign up for the HSE Now newsletter. If you are not logged in, you will receive a confirmation email that you will need to click on to confirm you want to receive the newsletter.
14 - 16 Sep 2020
- Muscat, Oman
Shaping the Future of the Energy Industry.
28 Apr 2020
- Brisbane, Australia
This one-day session features view on best practices for Carbon Management with a focus on fugitive methane reduction.
19 Jul 2020
- Austin, Texas
This one-day session will include a view of best practices for Carbon Management with a focus on fugitive methane reduction.
2 - 3 Sep 2020
- Beirut, Lebanon
Join peers and colleagues at this premier event
14 Sep 2020
- Bergen, Norway
The SPE Norway Subsurface Conference brings together the E&P industry to expand industry technical knowledge, connect with innovators and leaders and address technical challenges facing upstream oil and gas professionals.
7 - 10 Dec 2020
- Amsterdam, The Netherlands
Delivery for the Energy Challenge: Today and Tomorrow
27 May 2020 20:00 BST
- Live, then On Demand
HSE Now is a source for news and technical information affecting the health, safety, security, environment, and social responsibility discipline of the upstream oil and gas industry.
©2003-2020 Society of Petroleum Engineers, All Rights Reserved.