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东海平湖油气田的H23+4油藏为块状底水油藏,其开发受底水锥进、油藏的非均质性影响严重,目前含水已高达98.2%,进入高含水后期,但根据动态法计算有84×104m3储量未动用,仍有较大开发潜力。本文从分析不同油藏类型挖潜效果出发,通过油藏地质模型的精细描述研究,明确剩余油分布与潜力方向,充分利用数值模拟技术手段探索底水油藏高含水后期的挖潜对策。该方法对于指导同类油藏的开发具有借鉴意义。
The H23 + 4 reservoir in the Pinghu oil and gas field in the East China Sea is a massive bottom water reservoir. Its development is affected by bottom water coning. The heterogeneity of the reservoir is seriously affected. At present, the water content has reached as high as 98.2% and entered the later stage of high water cut. However, The method has 84 × 104m3 reserves not used, there is still great potential for development. Based on the analysis of potential tapping effect of different reservoir types, this paper clarifies the remaining oil distribution and potential direction through the detailed description of reservoir geological models, and makes full use of numerical simulation techniques to explore potential tapping potential in the high water cut period of bottom water reservoirs. The method has reference significance for guiding the development of similar reservoirs.