Decommissioning Insight 2018
DECOMMISSIONING INSIGHT 2018
Netherlands Oil and Gas Exploration and Production Association
NOGEPA
Normally Occurring Radioactive Material
NORM
Normally Unmanned Installation
NUI
OGA
Oil and Gas Authority
Offshore Petroleum Regulator for Environment and Decommissioning OSPAR is the mechanism by which 15 Governments & the EU cooperate to protect the marine environment of the North-East Atlantic. Decision by which derogation could be applied if there is robust reasoning behind leaving specific infrastructure wholly or partially in place Over-trawl surveys make sure the seabed is safe for normal fishing activities to resume. Reverse installation whereby the topsides modules are lifted separately onto a transportation barge or the deck of the crane vessel before being taken onshore. The piece-small method involves dismantling the topside and using onshore demolition techniques to produce small, manageable pieces that can be transported onshore.
OPRED
OSPAR
OSPAR Decision 98/3
Over-trawl surveys
Piece-large
Piece-small
PLANC
Permits, Licences, Authorisations, Notifications and Consents Operational expenditure after production has ceased.
Post-CoP OPEX
Reverse installation
Same as piece-large
SEPA
Scottish Environmental Protection Agency
The single-lift method involves removing the topside in one piece and may involve extra engineering work to reinforce the topside in preparation for removal.
Single-lift
Steel-piled jacket
SPJ
The facilities which sit on top of an installation, typically including drilling, processing and living quarters.
Topsides
Transferrable tax history
TTH
Also referred to as plugging and abandonment (P&A)
Well decommissioning
The WBS shows all elements of a typical decommissioning project and forms the basis for calculating decommissioning expenditure during different stages of the process.
Work Breakdown Structure (WBS)
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