LNS地区须家河组须二段致密砂岩气藏有利区预测Prediction of favourable exploration zones in tight sandstone of the 2nd member of Xujiahe formation in LNS area
陈晓东,施泽进,龙宏宇,王洁鑫
摘要(Abstract):
LNS须家河组二段致密砂岩气藏具有岩性致密、低孔低渗、非均质性强的特点。其砂岩含气储层与页岩夹层的声波传播速度特征相似,常规方法难以有效识别该类含气储层并刻画其平面展布。通过构造及小断层的精细解释确定有利的裂缝发育区,然后在拟声波反演滤除须二段泥质部分的基础上,利用低频增量属性对储层含气性进行检测以降低地震的多解性,在考虑构造裂缝发育程度、流体检测等因素的基础上,确定了研究区须二段有利勘探区域,并建立了有效的储层预测模式,为下一步勘探及井位部署工作提供支持。
关键词(KeyWords): 致密砂岩;低孔低渗储层;含油气检测;须家河组
基金项目(Foundation): 国家自然科学基金项目“薄互层油气藏地震多波波场分析研究”(编号:41204091)
作者(Author): 陈晓东,施泽进,龙宏宇,王洁鑫
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