考虑水侵影响的礁滩气藏动态储量预测模型

发布时间：2018-07-01 08:56

本文选题：动态储量 + 礁滩气藏　；参考：《断块油气田》2017年01期

【摘要】：礁滩气藏储层非均质性强,气水关系复杂,受水侵影响严重,常用动态储量计算方法无法解决储量的准确预测问题。结合礁滩气藏的地质特点,讨论了水侵礁滩气藏动态储量的影响因素,在稳定水侵和非稳定水侵识别的基础上,分析了气藏的水侵动态,基于水侵量和水侵系数2个重要水侵动态特征参数的研究,建立了水侵礁滩气藏动态储量预测模型,并针对平面径向流、直线流、半球形流等3种水侵模型,采用Laplace算法,对系统不同时间的水侵量进行了计算,进而求解出水侵气藏动态储量。实例计算结果表明,与其他方法相比,新模型可准确预测礁滩气藏动态储量,指导礁滩气藏的开发。
[Abstract]:The reservoir heterogeneity of Jiaotan gas reservoir is strong, the relationship between gas and water is complex, and it is seriously affected by water invasion. The common dynamic reserve calculation method can not solve the problem of accurate prediction of reserves. Combined with the geological characteristics of the reef beach gas reservoir, the influencing factors of the dynamic reserves of the water invaded reef beach gas reservoir are discussed. On the basis of the identification of the stable water invasion and the non stable water invasion, the water invasion performance of the gas reservoir is analyzed. Based on the study of two important characteristic parameters of water invasion, the prediction model of dynamic reserves of water-invaded reef beach gas reservoir is established, and the Laplace algorithm is used for three kinds of water invasion models, such as plane radial flow, linear flow and hemispherical flow. The water invasion amount of the system at different time is calculated, and the dynamic reserves of the water invasion gas reservoir are calculated. The calculation results show that compared with other methods, the new model can accurately predict the dynamic reserves of the reef beach gas reservoir and guide the development of the reef beach gas reservoir.
【作者单位】：中国石油大学(北京)石油工程教育部重点实验室;中国石油大学(北京)石油工程学院;
【基金】：国家自然科学基金项目“基于声震效应的页岩储层多组分流体多场耦合流动机理”(U1562102)
【分类号】：TE328

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