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陕甘宁盆地城华地区的华池油田华49井区、城壕油田玄马区、城63井区与城55井区目前均采用自然能量开采。分析其自然能量开采的可行性,研究底水油藏开发的合理生产压差,确定补充能量时机,对编制油田开发方案和规划及提高油田采收率是很重要的。通过研究认为有利的古地貌、古水系与河床中心滩相沉积所形成的油藏自然能量开采可行性最大。
The Hua-49 well area of Hua-chi oilfield in the Chenghua area of the Shaanxi-Gansu-Ningxia basin, the Xuanma area of Chengmo oil field, the Chengxi 63 well area and the Cheng 55 well area are all currently using natural energy. Analyzing the feasibility of its natural energy exploitation, studying the reasonable production pressure difference of bottom water reservoir development and determining the timing of supplementing energy are very important for the preparation of oilfield development plan and planning and improvement of oil recovery. By researching the favorable paleogeomorphology, the natural energy exploitation of reservoirs formed by the sedimentation of paleo-water system and riverbed center beach is the most feasible.