Security Of The United Kingdom Offshore Oil And Gas Installations

1978 ◽  
Author(s):  
Alex Smart ◽  
Philip A.H. Hodgson
Keyword(s):  
United Kingdom ◽  
Oil And Gas ◽  
The United Kingdom ◽  
Offshore Oil And Gas ◽  
Offshore Oil

A survey of inputs to the North Sea resulting from oil and gas developments

1987 ◽  
Vol 316 (1181) ◽  
pp. 495-509 ◽  
Keyword(s):  
United Kingdom ◽  
North Sea ◽  
Coastal Waters ◽  
Petroleum Hydrocarbons ◽  
Oil And Gas ◽  
The North ◽  
The United Kingdom ◽  
The North Sea ◽  
Offshore Oil And Gas ◽  
Offshore Oil

The annual input of petroleum hydrocarbons to the North Sea has recently been estimated to be between 100 and 170 kt and is derived from a variety of sources. Although there is uncertainty about the size of inputs from some sources, there is general agreement that the atmosphere, rivers and land run-off (including coastal sewage), and coastal oil industry activities combined with shipping, remain sources of major inputs. However, the size of annual inputs from the offshore oil and gas exploration and exploitation activities has recently increased to about 20 kt and these activities now form one of the major sources of petroleum hydrocarbons to the North Sea. This increase is almost entirely due to the use of oil-based drill-muds and the consequent discharge of drill cuttings contaminated with residual mud. At present, experience in the United Kingdom has shown that this input of fresh, unweathered oil rapidly enters otherwise uncontaminated offshore sediments, producing strictly local effects around the point-source discharges. The nature and composition of this input differs from the majority of the inputs to coastal waters and sediments, and from the diffuse atmospheric input to offshore waters. Of the 140 kt of materials other than oil discharged annually to the North Sea from oil and gas developments in the United Kingdom, 98-99% arise from drilling operations, but the vast majority of inputs from this source are biologically inert or derivatives of natural products. Surveys indicate that, of the remaining materials, less than 50 t of the more toxic products (i.e. those with a 96 h LC 50 to Crangon crangon of less than 1 part/10 6 ) are discharged into United Kingdom waters annually. The largely uncontaminated offshore North Sea waters and sediments remain little affected by offshore oil and gas developments, but if these activities enter already contaminated estuarine and coastal waters, the contamination and effects from this source will be harder to distinguish.

New Developments in the Disposal of Offshore Installations

1999 ◽  
Vol 14 (4) ◽  
pp. 523-540
Author(s):  
Louise de La Fayette
Keyword(s):  
Oil And Gas ◽  
National Level ◽  
Regulatory Regime ◽  
New Developments ◽  
The United Kingdom ◽  
Offshore Installations ◽  
Scientific Group ◽  
Offshore Oil And Gas ◽  
Public Reaction ◽  
Offshore Oil

AbstractIn 1995, Greenpeace International protested the proposed ocean dumping of the offshore installation, Brent Spar. This protest prompted a strong public reaction which in turn led to the recycling of the Brent Spar on land and also to a reconsideration of the relevant legal regime under the OSPAR Convention. In July 1998, the OSPAR Commission meeting at the ministerial level adopted a ban on the disposal of offshore oil and gas installations at sea. Since that time, there have been further developments at the global, regional and national level. This article examines these developments at the OSPAR Commission, at the European Parliament, by the Scientific Group of the London Convention 1972, and in the United Kingdom, which is now implementing the OSPAR decision in its national regulatory regime.

Embracing Australia's decommissioning liability

2021 ◽  
Vol 61 (2) ◽  
pp. 495
Author(s):  
Andrew Taylor ◽  
Stephen Stokes
Keyword(s):  
Cost Reduction ◽  
Service Sector ◽  
Oil And Gas ◽  
Technology Development ◽  
Collaboration Technology ◽  
Group Of Seven ◽  
The United Kingdom ◽  
The World ◽  
Offshore Oil And Gas ◽  
Offshore Oil

Improving visibility of when and where oil and gas assets are approaching end of life has provided the foundation for transformation of decommissioning planning and execution around the world. A baseline understanding of decommissioning established by Oil and Gas UK fed into the much lauded Maximising Economic Recovery strategy, and provided a platform for government to pursue a 35% cost reduction target for decommissioning in the United Kingdom. In the Netherlands, one of the first four priorities pursued to maximise value through decommissioning was the establishment of a national decommissioning database, which aimed to create an integrated view of decommissioning scope and timelines. In 2020, funded by NERA and a group of seven operators, Advisian delivered the first operator-supported assessment of Australia's decommissioning liability and outlook. This outlook lays the foundation for initiatives that support knowledge sharing, service sector engagement, collaboration, technology development, efficiency and reduced stakeholder burden. This joint presentation by NERA and Advisian will provide an overview of NERA's decommissioning strategy and the data that underpins this strategy, the Advisian ‘Offshore Oil and Gas Decommissioning Liability' assessment for Australia.

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