![]() 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:
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Well location and production history. Import historical production, well locations (red & blue dots in image to the right), and perforation data from OFM, Petrel, geoSCOUT, AccuMap, Schedule Eclipse,POWERS, or CMG. Build a 2D pancake grid, or import Petra maps to build a 3D grid, or import a 3D geomodel from Petrel/Gocad. |
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. |
Injection Efficiency. Once well-pairs are identified and the well-rate allocation factors are calculated, studioSL can summarize the performance of the injectors via an injector efficiency plot. Each point on the plot represents an injector and is associated with an offset oil rate produced on the y-axis. The IE-plot is powerful diagnostic of the efficiency of each injector in a field. |
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For a short white paper on field results with our technology, please see here. See our knowledge base item for more information on a Flow-Based Surveillance model vs a Flow Simulation model here.
See our April 2008 SPEREE paper or our JPT Jan 2010 Distinguished Author article for additional technical details.
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