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长春岭油田油藏埋深浅,原始地层温度低,油水粘度比大,是制约油田开发效果的重要因素,目前储量动用率只有29%。针对浅薄层油藏特点,以精细地质认识为前提,以改善地层原油流动性为目标,开展化学降粘驱、氮气泡沫驱技术提高驱油效率,通过不断完善注采规律认识,开展周期注水技术控制含水上升速度,同时采取有效的调堵技术缓解平面矛盾,均衡地层压力分布,目前在浅薄层油藏注水开发上取得较好效果,对长春岭地区同类型油藏注水开发具有重要借鉴意义。
Changchun Ridge oilfield buried shallow reservoir temperature is low, the oil-water viscosity ratio is an important factor restricting the development of the oil field, the current reserves utilization rate of only 29%. In view of the characteristics of shallow reservoirs and with the premise of fine geology, aiming at improving the formation fluidity of crude oil, chemical viscosity-reducing drive and nitrogen foam flooding technology are adopted to improve oil displacement efficiency. By continuously improving the law of injection and production, a periodic injection technique At the same time, effective adjustment of plugging technology should be used to relieve the plane contradiction and balance the formation pressure distribution. At present, the water injection development in shallow reservoirs has achieved good results, which is of great significance to the water injection development of the same type reservoirs in Changchun Ridge.