Technical Feasibility of Steam Flooding in Heavy Water Flooded Area

Abstract:

Jin 45 heavy oil block in Liao he oil field has entered the late steam huff and puff period,Flooded serious,Average single well daily oil producing is 0.74t/d, Water recovery rate reaches as high as 260%, It is extremely urgent to convert to Steam flooding development mode ,but without corresponding theoretical basis in heavy water flooded area. Take two test well groups with scale out two well spacing as object of study, Use Petrel software for accurate geologic modeling, Bring into steam huff and puff history matching through CMG software, and then make a steam flooding feasibility prediction in heavy water flooded area. During the prediction, the huge edge water and bottom water body was set up around the model. The result of numerical simulation manifested that Water invasion rule give priority to bottom water coning, Edge water invasion is not large, Outside casing wall channeling formed water flooded in severe cases; Reservoir has been formed basically thermal union;Reservoir remaining oil saturation is 44.96%,Formation pressure is 2.91 MPaContinuous steam injection make the formation pressure increases, inhibit water cut increasing rate and water cut increasing rate, The serious water invasion problem could be effectively relieved; In the five years forecast after steam flooding, the cumulative recovery degree is 7.74%, the development effect is improved. It proved that Liao he oil field Jin 45 heavy oil heavy water flooded area turn steam flooding development is feasible. The study provides a theoretical basis for heavy flooded area of heavy oil reservoirs to turn to steam flooding development.

• Periodical: Advanced Materials Research (Volumes 838-841)
• Pages: 2759-2762
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.838-841.2759
• Online since: November 2013
• Authors: Jun Hui Li
• Keywords: Edge and Bottom Water, Feasibility, Heavy Flooded Area, Steam Flooding

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