| LF-Y油田动态石油地质储量评价 |
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| 引用本文： | 周锦,李胜利,杨勇,朱义东,王雪美.LF-Y油田动态石油地质储量评价[J].现代地质,2016,30(2):373-381. |
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| 作者姓名： | 周锦 李胜利 杨勇 朱义东 王雪美 |
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| 作者单位： | (1. 中海石油(中国)有限公司深圳分公司研究院，广东 广州510240；2. 中国地质大学(北京)能源学院北京100083) |
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| 基金项目： | 国家自然科学基金项目(42172132，41572080)。 |
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| 摘 要： | LF-Y油田S区在ODP开发调整方案实施中，钻井表明构造边部变陡，含油面积变小，静态方法重新计算地质储量为1 328.30×104 m3，但该储量规模与油田生产动态不相符。结合生产动态法、储量反算法及油藏数值模拟法分析油田储量规模及合理性，指出了S区存在储量计算不足的问题并分析了原因，通过动态信息反算地质储量的方法,反算储量规模在1 450.00×104~1 700.00×104之间，因此该油田西边无井控区域储量潜力可能性较大。结合重新开展的孔隙度反演、精细地质模型、储量计算及油藏数值模拟等研究，再通过静态方法最终计算S区的地质储量为1 566.03×104 m3，储量规模增加了237.73×104 m3。以动态反算储量，并反馈到静态储层评价与储量计算之中，使两者达到较为一致的结果。研究成果不但解决了S区储量不足的矛盾，使模型更加合理，剩余油分布预测也更加可靠，为ODP调整方案成功实施提供了储量基础；而且验证了油藏动态方法对储量问题研究的反证作用，从而实现了油藏动、静态结合解决地质难点问题。
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| 关 键 词： | 地质储量 地质模型 油藏数值模拟 孔隙度反演 ODP |
Petroleum Reserve Research of LF- Y Oilfield Through Reservoir Dynamic Analysis |
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| Institution: | (1. Research Institute of Shenzhen Branch, CNOOC Ltd., Guangzhou, Guangdong510240, China; 2. School of Energy Resources, China University of Geosciences, Beijing100083，China) |
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| Abstract: | After the adjustive development plan implemented in the S Region of LF-Y oilfield, some drilling data have displayed that the structural west frank became deeper and the oil-bearing area became smaller. The static OIP recalculated in the S Region was 1,328.30 ×104 m3, which did not match with field production performance. Some methods were used to analysis OIP and its rationality, which included the dynamic method of production, inversion calculation methods, and numerical reservoir simulation method. Then a question that the geologic OIP displayed insufficient was brought forward, after detailed analysis. The OIP by inversion calculation was in the range of 1,450.00×104 m3to 1,700.00×104 m3, and unidentified remaining likely potential for reserves is in west frank. Some studies were put forward, which contained porosity inversion, detailed geological modeling, reserve calculation, and numerical reservoir simulation, and the result of geologic reserve was 1,566.03×104 m3 in the S Region, increased by 237.73 ×104 m3. So the contradiction of reserve insufficient in S region was solved by static and dynamic analyses. The problem that reserve displayed insufficient in the S region was resolved and the updated geologic simulation model was more harmoniously interactive. The prediction of remaining oil distribution is more reliable and it provides also geologic reserve evidences to guarantee the successful adjustive oilfield development plan (ODP). Meanwhile, it verified the function of oilfield production performance feeding back into the hydrocarbon reserves and it also provided a method to resolve difficult geologic problem by integrated dynamic and static data. |
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| Keywords: | geologic OIP geological model numerical reservoir simulation porosity inversion oilfield development plan |
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