New EOR projects yield a great deal of information as new wells are drilled, and detailed data becomes available from new parts of the reservoir. Projects with existing high well counts generate huge volumes of data that need to be quality controlled to be used effectively. Although it would be ideal, it is impractical to test all wells in the field simultaneously. Ongoing incremental well-test data can be input into a data management process that incorporates new information as it is acquired.
Pilot programs generate localized data in a relatively short amount of time, but production data is of low intensity and over a long period of time. Early full-field production data has to be reconciled with the predictive reservoir model to provide effective reservoir management.
The advanced techniques used in EOR projects still suffer from common production challenges, such as lack of pressure maintenance, sand management, flow assurance, and conformance control. As the reservoir depletes, the impact of the common issues becomes greater and they need to be mitigated and managed—or even prevented—in the context of the ongoing EOR project.
Cycle time from screening to full-field EOR can be cut by new workflows that have developed from global experience. New recovery technologies using old ways of working can easily become “science projects”—technical successes that do not justify the full-field stage. Schlumberger EOR services follow a staged process, combining new technology with a robust workflow that significantly compresses the pilot phase leading to a greater conversation of sanctioned EOR projects.