岩性油气藏 ›› 2015, Vol. 27 ›› Issue (1): 115121.doi: 10.3969/j.issn.1673-8926.2015.01.017
彭勇辉,李帝铨
PENG Yonghui, LI Diquan
摘要:
柴达木盆地某油气聚集区地质条件复杂,地震勘探效果不明显。 在该区布设了 5 条广域电磁法测线,采用 2 n 序列伪随机信号发射源和广域电磁法油气目标识别技术,研究了该区电性结构特征。 结果表明,该区存在 5 个主要电性层,产气层为高电阻率特征,产气层反演电阻率是非产气层的 2 倍以上。 反演 结果与钻井及地震资料对比证明,广域电磁法对油气层识别较有效。 由于施工简单,成本低,广域电磁法有一定的推广应用价值。
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