In a low oil price environment, minimizing costs while maximizing recovery typically becomes a high priority for most operators. There is a need to focus on reservoir surveillance and monitoring to improve existing waterfloods rather than focusing on exploration and the design of new secondary recovery schemes. It will focus on quick analytical methods for performing waterflood diagnostics on fields and patterns to ensure maximum sweep efficiency is being achieved with current waterflood field development plans.
This talk will demonstrate a reservoir engineering workflow that is used to conduct surveillance and analyze waterflood performance. By conducting analytical waterflood diagnostics and optimization potential on waterflood field case studies; the concept of communication analysis will be introduced at a pattern/individual well level to specifically pinpoint areas with upside potential (water cycling/channeling, poor communication, etc.) where techniques such as gel treatments and pattern reconfigurations would be ideal. Lastly, a case study outlining various water shutoff techniques used to increase oil recovery from mature waterfloods will be presented.