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New: Atkins – Process Rationalisation to Reduce Costs in Late Life

11 January 2018

Problem Statement 

Facilities in late life no longer require their nameplate production capacities.

Retaining the process as designed can lead to unnecessary operational expenditure costs. In September 2017 an operator requested we use our proprietary tool MeasCap to assess their facility’s capacity and identify options to reduce cost.


  • Undertake external review of facility rationalisation to identify the most efficient means of processing the fluids
  • Identify process modifications to reduce operational expenditure (OPEX) while minimising capital expenditure spend.
  • Options must consider impact on availability and production capacity, and demonstrate financial impact
  • Focus on short-term, high impact areas which achieve quick results


  • We quickly reviewed current overall capacity versus demand using Atkins’ proprietary MeasCap software, to identify areas of over/under utilisation.
  • We systematically identified options to remove excess capacity on a system and platform level, and used MeasCap to debottleneck equipment.
  • The best individual options were then combined to determine any additional benefits e.g. utility efficiencies.
  • Each option was conceptually assessed to understand OPEX savings and ability to meet target production in terms of capacity & availability with CAPEX for debottlenecking modifications estimated.
  • These financial implications were combined to give NPV per option to enable comparison, and develop the optimum rationalisation timeline.
  • Results were presented to the client management team and documented in the study report.



Multiple attractive options identified to reduce OPEX, minimise CAPEX and result in a positive NPV* – some examples below:

Option Impact on production CAPEX (US $) OPEX Saving/yr (US $) NPV ($)
Decommission Platform A Separation Train Sufficient capacity, reduced availability 7M 7M 36M
Smaller oil export pumps Sufficient capacity 15M 9M 39M
Decommission Platform A Power Gen 3M 1M 3M
Combined option 1 Sufficient capacity, reduced availability 18M 17M 43M
Combined option 2 26M 21M 22M

*NPV takes into account CAPEX, OPEX, lost production, availability impacts and discount factor

  • Use of MeasCap and Atkins expertise allowed an effective study of minimal duration – 6 week study costing ~ £50k.

Potential OPEX savings 

$15M – $20M / year

Savings using MeasCap 

~ 3 weeks quicker

~ £25k less

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