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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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海拉尔盆地呼和湖凹陷煤层气预测方法
Keywords: 煤层气,波阻抗反演,avo反演
Abstract:
？海拉尔盆地呼和湖凹陷煤层厚度较大,埋藏深度适中,具有较好的煤层气成藏条件。但由于该区煤层在地震资料上特征不清,如何利用地震资料预测煤层和煤层气分布是急需解决的技术难题。本文首先分析了煤层和煤层气的岩石物理特征,以岩石物理分析为指导,利用波阻抗反演预测了煤层厚度。分析了该区煤层的avo特征,并利用avo反演预测了煤层气的分布,初步建立起了一套呼和湖凹陷低阶煤气层的识别方法,可为大庆探区的煤层气勘探提供技术支撑。
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