Field Proven Results of Field Office™ Software

A large multinational E&P company operates an offshore gas-lifted field in the North Sea. This complex asset presents the operator with numerous operational challenges due to the dynamic nature of the operation and the need to operate within the constraints of available lift gas. With the ultimate goal of increasing total production and ensuring optimum asset utilization, components of Weatherford’s Field Office software suite are used to enable the operator to optimize the operation within this demanding environment.

The impact of daily operational decisions on production is highly complex, especially in this dynamic offshore environment where conditions can change radically from one day to the next. Therefore, a real-time solution was installed that not only gave operators key information on well conditions so they were not making engineering decisions in the dark, but also could be used offline as a “what if” tool for allocating lift gas, debottlenecking, adding new wells, validating production well tests, identifying which wells to test and other production management tasks.

The combination of WellFlo^® systems analysis software and ReO^® network optimization software provides a complete reservoir inflow to sales point optimization model that considers the entire production system and uncovers opportunities not identified by traditional techniques. Weatherford’s Intelligent Daily Operations (i-DO^®) solution connects the ReO and WellFlo models to real-time data and allows the models to be updated automatically, reducing the optimization cycle time which, in turn, enables sustainable production gains.

Other key benefits include improved asset understanding and problem detection achieved through early and automated well surveillance and increased production through improved asset operating modes and workflows.

A major producer in Nigeria operates 3000 wells in the Niger Delta with a total daily production of approximately 1,000,000 bbl/day of oil and 1,700 MMScf/day of gas.

Software solutions from Weatherford provide an integrated subsurfacesurface production optimization model for this operation to enhance the performance of the assets and improve total field management.

WellFlo and ReO software model the entire surface infrastructure of the operation including the integrated pressure and volume behavior of the surface flow lines. This ReO model allows the customer to evaluate different operating scenarios to meet a number of specific business objectives including the following:

• Maximization of oil production for a specified flare limit
• Optimization of produced oil quality including blending of different fluids
• Identification of under-performing wells and facilities
• Surveillance and monitoring to achieve daily performance improvement of wells

Weatherford’s ReO Forecast™ software provides time-dependent integrated surface and subsurface production forecasts, accounting for reservoir decline over the life of the asset. This integrated surfacesubsurface production system model will include both oil and gas reservoirs with associated wells and model both the oil production and gas gathering networks. This demonstrates that ReO and ReO Forecast software can be effectively used to model the impact of changing reservoir conditions. As a result, these Field Office components will predict optimal production performance over time and also minimize lost production due to planned/unplanned production network downtime.