ReO Forecast™ Module

The ReO Forecast module extends ReO^® software’s capabilities to include the ability to time-step the production system model for short or long term production forecasting. This module allows users to build an integrated sub-surface and surface network model for accurate forecasting. It links ReO software with the sub-surface model via WellFlo^® software. The sub-surface model can be Weatherford’s material balance application, Matbal^® software, or other commercial reservoir simulators. This is an ideal tool for production forecasting, facilities design and sizing and reservoir development planning.

Both static and dynamic links are available for reservoir simulators. For static link, the forecasting results of the reservoir simulator or material balance application forms an input to the integrated WellFlo/ReO model at the reservoir/well connection level. In the case of dynamic link (available for Eclipse™ 100 and 300), the reservoir/well/surface network models are run dynamically (in series) with seamless data communication between these applications. An iteration algorithm is incorporated to resolve discrepancies in the predictions between the reservoir simulator and ReO software.

The two main forecasting options offered in the module are:

• Production profile
• Gas contract

Flexible event-based scheduling allows users to modify any constraint in the surface network as well as open or close the wells. Built-in production rules ensure that production from every well is optimized in the best possible way for the given asset. Manual and automatic drilling options offer full flexibility to users in managing the forecasting calculations.

For gas contract, users can specify daily contract quantity (DCQ) and swing factor to simulate seasonal changes in gas demands.