煤储层渗透率动态预测模型适用性评价Applicability Assessment of Coal Reservoir Permeability Dynamic Prediction Model
汪志明,王忠华,张健
摘要(Abstract):
基于比较理论推导建立的4个煤层渗透率计算模型,对我国煤层气盆地已有物性参数进行计算,以预测其煤储层渗透率。将模型预测结果与现场试井渗透率数据进行对比分析,得出了4个模型的预测精度,在此基础上研究了煤储层渗透率动态预测模型对我国煤层气部分区块的适用性。计算结果表明:在煤层气开发后期,汪-张模型的适用性较好,预测结果与现场数据基本一致,对煤层气开采有一定指导意义。
关键词(KeyWords): 煤层;渗透率;计算模型;适用性
基金项目(Foundation): 国家科技重大专项大型油气田及煤层气开发研究项目(2008ZX05000-037)
作者(Author): 汪志明,王忠华,张健
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