基于岩石力学理论的测井地层压力预测
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摘要
针对现有地层压力预测方法的局限性,考虑了欠压实以外的异常压力形成机理,根据测井资料数据,基于岩石力学理论,建立了地层压力预测模型。该模型适合于连续和非连续地层复杂岩性的地层压力预测需要,不需要建立正常趋势线,大大减少了人为因素对检测结果的影响,其预测误差一般在8%以内,具有精度高和可靠性好的特点,完全满足工程要求,便于现场应用。
A prediction model of reservoir pressure is established on the base of lithomechanics and from the logging data and after study on the generation mechanism of abnormal pressure except uncompaction for solving the limit of current prediction methods.The model is suitable to the pressure prediction of continous or discontinuous strata with complex lithology without establishing the normal trend line,thus minimizing the influence of artificial factors.The prediction error is within 8%,so the model is characterized by high precision and reliability,meeting the field engineering requirement.
A prediction model of reservoir pressure is established on the base of lithomechanics and from the logging data and after study on the generation mechanism of abnormal pressure except uncompaction for solving the limit of current prediction methods.The model is suitable to the pressure prediction of continous or discontinuous strata with complex lithology without establishing the normal trend line,thus minimizing the influence of artificial factors.The prediction error is within 8%,so the model is characterized by high precision and reliability,meeting the field engineering requirement.
引文
[1]王越之.地层压力研究方法的新进展[J].中国海上油气(地质),1998,12(3):210-212
[2]金业权,王越之,李自俊.地震资料预测地层孔隙压力应基于欠压实成因[J].石油钻探技术,2000,28(3):7 -9
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[5]夏宏泉,游晓波,凌忠,等.基于有效应力法的碳酸盐岩地层孔隙压力测井计算[J].钻采工艺,2005,28(3):28 -30
[2]金业权,王越之,李自俊.地震资料预测地层孔隙压力应基于欠压实成因[J].石油钻探技术,2000,28(3):7 -9
[3]邵新军,许昀,吕中锋,等.地层流体压力预测方法的讨论[J].石油勘探与开发,2000,27(3):100-102
[4]樊洪海.利用声速检测欠压实泥岩异常高压的简易方法与应用[J].石油钻探技术,2001,29(5):9-11
[5]夏宏泉,游晓波,凌忠,等.基于有效应力法的碳酸盐岩地层孔隙压力测井计算[J].钻采工艺,2005,28(3):28 -30
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