Reservoir Pattern Surveillance

Reservoir pattern surveillance is the grouping of wells into injector or producer centered patterns. Use studioSL to integrate well locations, injection/production history, and geology, into a material-balance flow model.  studioSL is the only industry software to offer a complete and robust solution for reservoir pattern surveillance.  The results include:

• Flow-based well-pair rate allocation factors
• Dynamic patterns - injector or producer centered
• Quantify pattern injector efficiencies
• Well-rate targets calculated in floodOPT that promote efficient vs. inefficient use of injected fluids
• ROIP and pressure distributions using our StreamLine Region based Material Balance simulator (SLR-MB)
• Well-level forecasting based on advanced data analytics

Compute streamlines.With well locations, the injection and production history, and a grid defined, calculate the streamlines at desired times throughout history. The image to the left shows streamlines, as colored by originating injector, for a single time interval.

As surveillance does not involved the transport of fluids along the streamlines, calculations are fast and require only basic PVT input.

Flux Pattern Map. Collapse the streamline bundles between each well-pair and represent this as a simple stick connection. This is Streamsim's patented (US Patent 6,519,531) Flux Pattern Map to quantify the strength and the allocation factors between wells. Since streamlines change with time, so too will the FPmap, giving a dynamic pattern picture of your flood.  These maps can be combined for a range of timesteps to then represent average patterns and average allocation factors over the time range.