Technical library
Technical notes, review tools and public references for decommissioning planning, engineering and cost-basis review.
The evidence behind a defensible closure estimate
A useful estimate lets another person reconstruct the route from the asset record to the number, including the assumptions that could change it.
Read technical note →The temporary state can govern the lift
A removal scheme needs a structural explanation for every transition, including the states in which the object is only partly released.
Read technical note →Inherited asset records: find the evidence that changes the decision
The first useful result from an inherited data room is a map of what can be relied on, what conflicts and what must be checked in the field.
Read technical note →How to read a NOPSEMA record without overreading it
Public regulatory records are valuable when their status, scope and date travel with every conclusion drawn from them.
Read technical note →Closure decisions are often won or lost at the interfaces
Define what closure means for each asset and handover before dividing the work into contracts.
Read technical note →Estimate drift: explain what changed before explaining the total
A movement in the reported provision can conceal several engineering and financial changes that point in different directions.
Read technical note →Tools and references
Use the material in context.
ARO evidence checklist
Twelve checks to structure a review of the evidence behind a cost basis.
Open checklist →3D asset explorer
Explore nine evidence domains on an illustrative offshore platform or onshore plant.
Open explorer →Australian offshore records
Ten selected NOPSEMA regulatory records with scope summaries, reported dates and original sources. Industry context, not an Endura project portfolio.
Browse public records →Decommissioning glossary
Definitions, scope boundaries and source references for common technical terms.
Browse definitions →