Sa North Zone In Northern Transition Zone Of Steam Flooding Enhanced Oil Recovery

Thermal recovery technology is divided into steam stimulation and steam flooding. Steam stimulation is the use of crude oil has a temperature sensitivity of the reservoir to the production well into the high temperature and pressure within the saturated steam, the heat conduction and convection mainly in the form of heat exchange in oil, heating oil, increased oil temperature, oil viscosity reduction, improved their mobility, so that well stimulation, oilfield development to improve results. Steam flooding is the high temperature steam as a heat carrier fluid and drive the media, from the steam injection continuous steam injection wells, production wells adjacent to continue oil production from the use of heat into the process of improving the efficiency of oil displacement. The one hand, the use of steam steam flooding overlap displacement of water flooding in the upper reservoir of poor results, the vertical spread in the drive to achieve complementarity with water, and tap the remaining oil in the upper reservoir; the other hand, high temperature steam can greatly reduce the residual oil saturation degrees, thus significantly improve the oil displacement efficiency.Raw water flooding in the transition zone on the basis of well network reduced by the appropriate injector spacing, to explore the use of steam flooding technology to further tap the potential oil reservoirs, the feasibility of improving the development effectiveness of transition zone. The success of the trial on the remaining reserves Sabei effective transition zone development has broad application prospects of expansion of steam flooding technology applications with better guidance, and transition zone for the efficient development of Daqing provide technical reference.