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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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气体钻井条件下泥页岩水侵规律实验研究
Keywords: 泥页岩,气体钻井,水侵实验,水侵范围
Abstract:
？通过在室内模拟气体钻井条件下泥页岩地层的温度和压力，分别对气体钻井钻遇地层出水条件下的水侵规律和气体钻井转水基钻井条件下的水侵规律进行实验研究，并建立相应条件下的水侵距离与时间的关系，从而对相应条件下泥页岩地层的水侵范围和坍塌范围进行预测，分析这2种情况下水侵距离与时间的关系。结果表明两者均呈现出初期水侵速度较快、中后期逐渐变缓的特征。对比2种情况下的水侵距离与时间的关系，前者的水侵速度要比后者的水侵速度慢得多，同样水侵穿透5cm的距离时，前者所用时间是后者的350倍左右。？
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