应用阵列声波测井资料计算大北克深地区岩石力学参数
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摘要
以大北克深地区X井和Y井的数据为例,利用阵列声波测井计算了相关地层岩石力学参数,结果表明,泥岩地层岩石强度较高,石膏地层次之,砂岩地层强度较低;泥质含量越高,抗张、抗剪、抗压强度越大,毕奥特(Biot)系数有所减小。阵列声波测井方法能准确地提取地层纵横波时差,对计算地层岩石力学参数具有显著优势,可节约昂贵的弹性力学参数测试费用,能预测和判断深部地层发育情况。
Taking the data of X and Y wells in Dabei-Keshen region as an example, the related formation rock mechanical parameters were calculated by using the array acoustic logging. The results show that the mudstone formation has high rock strength, followed by gypsum formation, and the sandstone has low formation strength. The higher the shale content, the greater the tensile, shear and compressive strength, and the lower the Biot coefficient. The method of array acoustic logging can accurately extract the time difference between the horizontal and vertical waves of strata, which has significant advantages in calculating the mechanical parameters of strata. The method can save expensive testing cost of elastic mechanical parameters and can predict and judge the development of deep strata.
Taking the data of X and Y wells in Dabei-Keshen region as an example, the related formation rock mechanical parameters were calculated by using the array acoustic logging. The results show that the mudstone formation has high rock strength, followed by gypsum formation, and the sandstone has low formation strength. The higher the shale content, the greater the tensile, shear and compressive strength, and the lower the Biot coefficient. The method of array acoustic logging can accurately extract the time difference between the horizontal and vertical waves of strata, which has significant advantages in calculating the mechanical parameters of strata. The method can save expensive testing cost of elastic mechanical parameters and can predict and judge the development of deep strata.
引文
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[2]王建华.声波测井技术综述[J].工程地球物理学报,2006,3(5):395-398.
[3]乔文孝,鞠晓东,车小花,等.声波测井技术研究进展[J].测井技术,2011,35(1):14-18.
[4]杨秀娟,张敏,闫相祯.基于声波测井信息的岩石弹性力学参数研究[J].石油地质与工程,2008,22(4):39-42.
[5]王朝辉.交叉偶极声波测井(XMAC)信息提取方法研究[D].吉林长春:吉林大学,2005:2-9.
[6]朱雷,章成广,唐军,等.利用声波全波列测井资料识别致密砂岩储层裂缝[J].长江大学学报(自科版),2015,12(8):23-26.
[7]马建海,孙建孟.用测井资料计算地层应力[J].测井技术,2002,26(4):347-351.
[8]刘景武.硬地层中用多极子阵列声波资料计算力学参数及识别裂缝[J].测井技术,2005,29(2):137-140.
[9]黄娅,万金彬,孙盼科,等.基于岩石物理相分析的复杂储层测井综合评价[J].长江大学学报(自科版),2017,14(11):32-39.
[10]孙旭,柯式镇,尹成芳,等.川东北地区碳酸盐岩储层测井综合评价[J].长江大学学报(自科版),2017,31(4):26-29.