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多尺度随钻方位电磁波测井系统响应特征研究

吴柏志 杨震 郭同政 袁习勇

吴柏志,杨震,郭同政,等. 多尺度随钻方位电磁波测井系统响应特征研究[J]. 石油钻探技术,2022, 50(6):7-13 doi: 10.11911/syztjs.2022107
引用本文: 吴柏志,杨震,郭同政,等. 多尺度随钻方位电磁波测井系统响应特征研究[J]. 石油钻探技术,2022, 50(6):7-13 doi: 10.11911/syztjs.2022107
WU Baizhi, YANG Zhen, GUO Tongzheng, et al. Response characteristics of logging While drilling system with multi-scale azimuthaWl electromagnetic waves [J]. Petroleum Drilling Techniques,2022, 50(6):7-13 doi: 10.11911/syztjs.2022107
Citation: WU Baizhi, YANG Zhen, GUO Tongzheng, et al. Response characteristics of logging While drilling system with multi-scale azimuthaWl electromagnetic waves [J]. Petroleum Drilling Techniques,2022, 50(6):7-13 doi: 10.11911/syztjs.2022107

多尺度随钻方位电磁波测井系统响应特征研究

doi: 10.11911/syztjs.2022107
基金项目: 中国石化集团公司科研攻关项目“随钻超深方位电磁波前探测仪器关键技术研究”(编号:JP22503)、中国石化“十条龙”科技攻关项目“旋转地质导向核心技术攻关及应用”(编号:P21080)和中国博士后科学基金项目“随钻瞬变电磁测井前视远探测方法研究”(编号:2022M713462)联合资助
详细信息
    作者简介:

    吴柏志(1970—),男,吉林扶余人,1993年毕业于大庆石油学院采油工程专业,2006年获中国石油大学(华东)油气田开发工程专业博士学位,正高级工程师,主要从事石油工程技术方面的管理和研究工作。E-mail:wubz@sinopec.com

  • 中图分类号: P631.8+11

Response Characteristics of Logging While Drilling System with Multi-Scale Azimuthal Electromagnetic Waves

  • 摘要:

    为了及时发现地层构造变化,规避钻井风险的同时准确评价地层,要求随钻测井仪器具备尽可能大的探测深度和较高的分辨率,而单一尺度的测量结果难以同时满足上述要求。为此,模拟研究了超深随钻方位电磁波和随钻方位电磁波测井系统的探测特性,分析了该测井系统的探边能力和分辨率,并探索了其对钻前地层界面的探测效果;然后,采用拟牛顿法,进行了多尺度随钻方位电磁波测井资料的精确快速反演。研究结果表明,通过增大源距、降低频率的方式,超深随钻方位电磁波测井的探边能力达到数十米;与小尺度随钻方位电磁波测井联合使用,通过反演可以实时获取油藏电阻率剖面信息,从而实现近远井不同范围内的地质预测、地质导向和油藏描述。

     

  • 图 1  多尺度随钻方位电磁波测井系统的天线排布

    Figure 1.  Antenna configuration of LWD system with multi-scale azimuthal electromagnetic waves

    图 2  层状地层多尺度测井系统响应模拟结果

    Figure 2.  Simulated response results of multi-scale logging system in laminated formation

    图 3  层状地层边界探测信号成像

    Figure 3.  Images of boundary detection signals in laminated formation

    图 4  探边能力与电阻率对比度的关系

    Figure 4.  Relationship between boundary detection ability and resistivity contrast

    图 5  直井、不同层厚条件下的电阻率响应模拟结果

    Figure 5.  Simulated response results of resistivity with different layer thicknesses in vertical well

    图 6  层状地层超深地质信号响应模拟结果

    Figure 6.  Simulated response results of ultra-deep geosignals in laminated formation

    图 7  层状地层方位电阻率成像

    Figure 7.  Image of azimuthal resistivity in laminated formation

    图 8  测井仪器与地层的相对位置关系

    Figure 8.  Relative position of instrument and formation

    图 9  前探测视电阻率响应模拟结果

    Figure 9.  Simulated response results of apparent resistivity of undrilled formation

    图 10  多尺度测井系统反演结果

    Figure 10.  Inversion results of multi-scale logging system

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出版历程
  • 收稿日期:  2022-07-29
  • 修回日期:  2022-10-09
  • 网络出版日期:  2022-11-15

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