Petex: Increasing Production While Reducing Gas Lift Consumption SPE-136126-MS
More production, less gas. This Oman field boosted output 8% while cutting gas lift use 25% using an integrated MBAL-PROSPER-GAP workflow.
A mature oil field in northern Oman relied heavily on gas lift to maintain production. As the field grew and operating conditions changed, distributing gas lift efficiently across dozens of wells became increasingly difficult. Engineers knew there were opportunities to improve performance, but understanding how changes in one part of the system affected the rest of the field was far from straightforward.
The challenge was that reservoirs, wells and surface facilities were often assessed separately. A change that improved one well could easily create unexpected consequences elsewhere in the network. Optimising the field required a way of understanding the entire production system as a connected asset.
The operator needed a single view of reservoir behaviour, well performance and gas lift distribution. Rather than treating each discipline in isolation, they required an integrated workflow capable of identifying bottlenecks, testing optimisation scenarios and forecasting future performance.
PE tools provided exactly that. MBAL was used to model reservoir performance and forecasting, PROSPER was used to analyse and optimise individual wells, and GAP was used to model the surface network and gas lift distribution system. Together, the models provided a consistent picture of how the field behaved as a whole.
The result was a significant improvement in performance. Production increased by 8%, while gas lift consumption was reduced by more than 25%. Instead of relying on individual engineering studies, the operator gained a practical optimisation tool capable of supporting day-to-day decision-making across the field.
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