Selected work/Integrated asset model
Integrated well, network and facilities modelling on a mature offshore asset, where the binding limit sat with a different team from the one reporting the loss.
Outcome
Objective met3 of 3 success criteria. Read the conclusionProduction on a mature offshore platform depended on how well performance, gathering system backpressure and process limits interacted. Each discipline reviewed its own part and each found something plausible. The limit belonged to the whole system and nobody owned the whole system.
An integrated asset model joined well performance, network hydraulics and facilities capacity in one calibrated view. The model had to reproduce the measured system before it was used to propose changes. Operating changes and well opportunities were tested for the next limit they would expose and ranked against a defined baseline, with an observation period long enough to tell a short-lived rate increase from a sustained gain.
Operating changes and interventions were ranked on the whole-system response and checked against the baseline afterwards. The team that owned the fix was often not the one that had reported the loss.
The objective was to rank opportunities on the whole-system response rather than on one discipline's view. It was achieved. The model was calibrated to test and operating data before use, each opportunity on the register names the next limit it would expose, and verification against the baseline is part of the register.
| Success criterion | Met | How it was achieved |
|---|---|---|
| iModel reproduces measured rates and pressures before any change is proposed | Met | Model calibrated to the test and operating data before use |
| iiEvery opportunity ranked on the system response, not on one discipline's view | Met | Opportunity register ranked with the next limit named for each item |
| iiiGains verified against the baseline over an agreed period | Met | Post-change verification built into the register |
Deliverables
Evidence note
Experience of senior personnel in previous employment, anonymised. Not an Assos Tech contract. Client, field and quantified results not shown.
A three-scenario oil and water forecast across five central processing facilities, with transfer line, facility and disposal limits applied to every well and each well counted once.
Met4 of 4 success criteriaOperator engagementRead the caseMiddle East·Producing field, management reportingA deferral register and weekly facility summaries that keep oil separate from liquid, transfers separate from net gains, and every item with an owner and a date.
Met4 of 4 success criteriaOperator engagementRead the caseSend us the version you are dealing with. We will tell you what we would do first.
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