In-Depth Water Diversion Treatment by Coupling Preformed Particle Gel and Low Salinity Waterflooding in Fractured Carbonate Cores
- Ali K. Alhuraishawy (Iraqi Ministry of Oil / Reservoir and Fields Development Directorate) | Ahmed Khalil Jaber (Iraqi Ministry of Oil / Reservoir and Fields Development Directorate) | Sameer Noori Aljawad (Iraqi Ministry of Oil / Reservoir and Fields Development Directorate) | Baojun Bai (Missouri University of Science and Technology) | Mingzhen Wei (Missouri University of Science and Technology) | Hussein Ali Baker (Baghdad University) | Waleed Hussien AL-Bazzaz (Kuwait Institute for Scientific Research)
- Document ID
- Society of Petroleum Engineers
- SPE Kuwait Oil & Gas Show and Conference, 13-16 October, Mishref, Kuwait
- Publication Date
- Document Type
- Conference Paper
- 2019. Society of Petroleum Engineers
- Water Diversion Treatment, Preformed Particle Gel, Smart Waterflooding, Enhanced Oil Recovery, Fractured Carbonate Cores
- 2 in the last 30 days
- 56 since 2007
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The limitations of oil recovery from carbonate reservoirs are fractures and oil-wet conditions. To overcome the reservoir heterogeneities and reduce fracture transmissibility, preformed particle gel was applied in injector wells. Experimentally, low salinity waterflooding was applied to change the core wettability from oil-wet to water wet for enhanced oil recovery. However, both processes have limitations that cannot be resolved using a single method. A non-uniform fracture width and uniform fracture width models were built using carbonate cores to evaluate the coupling low salinity waterflooding and preformed particle gel in fractured cores and how could be used to improve in-depth water diversion treatment. The results showed that low salinity waterflooding improved in-depth water diversion when injected after PPG directly while seawater showed less effect than low salinity waterflooding. Also, the uniformity of fracture had a significant effect on plugging efficiency oil recovery factor from fractured reservoirs.
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