Research and application of compound profile control technology with multi-slug in fractured reservoir of Huoshaoshan oilfield

Aiming at the problems of water flooding and water channeling in Huoshaoshan oilfield, in combination with the specific characteristics of the fractured reservoirs in Huoshaoshan oilfield, by adopting the research method of reservoir engineering and production engineering, based on the laboratory testing, field testing and its testing results has been carried out and analyzed. Therefore, the profile control technology has been optimized. The compound profile control technology with multi-slug has been adopted in Huoshaoshan oilfield many times and the application results indicate the technology has a good adaptability and can effectively seal the big fractures and water channel with large pores and control the increasing water cut. By the end of November 2009, the accumulated increased oil, decreased water and effective days are 5406.9 t, 3451.6 t and 5918.3 t respectively.