After full abandonment in 1996, redevelopment of the 1 billion bbls Schoonebeek oil field (Cretaceous Bentheim sandstone reservoir) is attractive. The field contains viscous (25°API, 160 cP in situ) and waxy oil. The western part, known as the Solution Gas DriveArea (SGDA), has a modest 15% recovery factor. Redevelopment will be by low-pressure steam flooding with closely spaced horizontal oil producers and steam injectors in the bottom part of the reservoir ("GravityAssisted Steam Flooding"). Drilling of the 73 wells started in January 2009, and will last for about two years. In order to bring the SGDAredevelopment project to the execution phase, a large variety of field proven technologies, as well as a high level of discipline integration, standardization, and detailed reservoir characterization were brought together. In particular the detailed well planning required a significant integrated effort. The accuracy with which the horizontal wells are placed in the reservoir has a direct impact on the thermal efficiency, production performance and ultimate recovery. In this respect, the high-resolution 3D seismic acquired in 2005 has been instrumental. First oil production is expected in 2010.Additional oil recovery is estimated to be around 120 mln bbls.
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