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适用于油基钻井液的随钻电阻率成像测井方法

张卫 路保平 王保良 李新 陆军轶 冀海峰

张卫, 路保平, 王保良, 李新, 陆军轶, 冀海峰. 适用于油基钻井液的随钻电阻率成像测井方法[J]. 石油钻探技术, 2019, 47(1): 112-117. doi: 10.11911/syztjs.2019009
引用本文: 张卫, 路保平, 王保良, 李新, 陆军轶, 冀海峰. 适用于油基钻井液的随钻电阻率成像测井方法[J]. 石油钻探技术, 2019, 47(1): 112-117. doi: 10.11911/syztjs.2019009
ZHANG Wei, LU Baoping, WANG Baoliang, LI Xin, LU Junyi, JI Haifeng. The Resistivity Imaging LWD Method Suitable for Oil-Based Drilling Fluid[J]. Petroleum Drilling Techniques, 2019, 47(1): 112-117. doi: 10.11911/syztjs.2019009
Citation: ZHANG Wei, LU Baoping, WANG Baoliang, LI Xin, LU Junyi, JI Haifeng. The Resistivity Imaging LWD Method Suitable for Oil-Based Drilling Fluid[J]. Petroleum Drilling Techniques, 2019, 47(1): 112-117. doi: 10.11911/syztjs.2019009

适用于油基钻井液的随钻电阻率成像测井方法

doi: 10.11911/syztjs.2019009
基金项目: 国家科技重大专项“低渗透储层高精度随钻成像技术研究”(编号:2016ZX05021-002)资助
详细信息
    作者简介:

    张卫(1970-),男,安徽阜阳人,1992年毕业于山东工业大学自动化仪表专业,2001年获石油大学(华东)控制理论与控制工程专业硕士学位,2007年获华中科技大学机械制造及其自动化专业博士学位,教授级高级工程师,主要从事井下智能仪器及相关技术研究。E-mail: zhangwei.sripe@sinopec.com

  • 中图分类号: P631.8+11

The Resistivity Imaging LWD Method Suitable for Oil-Based Drilling Fluid

  • 摘要:

    油基钻井液会阻断直流电流通路从而使常规的随钻电阻率测井方法失效,为解决该问题,基于电容耦合非接触电导检测技术,提出了可用于油基钻井液的随钻电阻率成像测井方法。综述了随钻电阻率测量的主要方法,介绍了电容耦合非接触电导检测技术的原理与特点。将电容耦合和电感耦合相结合,建立了油基钻井液条件下的方位测井模拟模型,并利用该模型进行了多种工况下的测井模拟试验,分析了周向位置与电流幅值、电极周向位置与电流相位的关系及钮扣电极成像原理,模拟结果表明,钮扣电极具有方位探测能力,所提出的测井方法具有可行性。设计了地面模拟测井系统,进行了方位测井室内试验,发现该测井系统能够实现地层成像和测量地层倾角,试验结果与实际地层倾角的相对误差仅为4.7%。研究认为,提出的随钻电阻率成像测井方法可以在油基钻井液条件下进行随钻侧向电阻率测量,并且使测得的电阻率成像,从而得到较为可靠的测井结果。

     

  • 图 1  C4D传感器的基本结构

    Figure 1.  Basic structure of a C4D sensor

    图 2  C4D传感器的等效电路

    Figure 2.  The equivalent circuit of a C4D sensor

    图 3  油基钻井液条件下的方位测井模型

    Figure 3.  The azimuth logging model under the condition of oil-based drilling fluids

    图 4  油基钻井液条件下的方位测井等效电路

    Figure 4.  The azimuth logging equivalent circuit under the condition of oil-based drilling fluids

    图 5  随钻电阻率成像测井传感器的基本结构

    Figure 5.  Basic structure of the resistivity imaging LWD sensor

    图 6  方位测井模拟模型及模拟试验示意

    Figure 6.  Schematic of azimuth logging simulation model and simulation test

    图 7  电极周向位置与电流响应的关系

    Figure 7.  Relationship between the circumferential position of electrode and the current response

    图 8  30°倾斜地层模型结构示意

    Figure 8.  Schematic of the 30° inclined formation model

    图 9  30°倾斜地层成像结果

    Figure 9.  Imaging results of 30° inclined formation

    图 10  方位测井室内模拟试验装置示意

    Figure 10.  Schematic of azimuth logging indoor simulation test device

    图 11  钮扣电极成像结果

    Figure 11.  The imaging results of button electrode

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出版历程
  • 收稿日期:  2018-09-27
  • 修回日期:  2018-12-10
  • 网络出版日期:  2022-09-09

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