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螺绕环激励式随钻侧向测井仪测量强度影响因素及响应特性

李铭宇 柯式镇 康正明 李新 倪卫宁

李铭宇, 柯式镇, 康正明, 李新, 倪卫宁. 螺绕环激励式随钻侧向测井仪测量强度影响因素及响应特性[J]. 石油钻探技术, 2018, 46(1): 128-134. doi: 10.11911/syztjs.2018025
引用本文: 李铭宇, 柯式镇, 康正明, 李新, 倪卫宁. 螺绕环激励式随钻侧向测井仪测量强度影响因素及响应特性[J]. 石油钻探技术, 2018, 46(1): 128-134. doi: 10.11911/syztjs.2018025
LI Mingyu, KE Shizhen, KANG Zhengming, LI Xin, NI Weining. Influence Factors of Measured Signal Intensity and the Response Characteristics of the Toroidal Coil Excitation LWD Laterolog Instrument[J]. Petroleum Drilling Techniques, 2018, 46(1): 128-134. doi: 10.11911/syztjs.2018025
Citation: LI Mingyu, KE Shizhen, KANG Zhengming, LI Xin, NI Weining. Influence Factors of Measured Signal Intensity and the Response Characteristics of the Toroidal Coil Excitation LWD Laterolog Instrument[J]. Petroleum Drilling Techniques, 2018, 46(1): 128-134. doi: 10.11911/syztjs.2018025

螺绕环激励式随钻侧向测井仪测量强度影响因素及响应特性

doi: 10.11911/syztjs.2018025
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:

    李铭宇(1993-),女,河北承德人,2016年毕业于长安大学勘查技术与工程专业,在读硕士研究生,主要从事随钻电阻率测井理论及方法研究。

  • 中图分类号: P631.8+11

Influence Factors of Measured Signal Intensity and the Response Characteristics of the Toroidal Coil Excitation LWD Laterolog Instrument

  • 摘要: 与传统的随钻电极型电阻率测井仪相比,螺绕环激励式随钻侧向测井仪具有不易磨损,工艺难度小的优点,但国内对于该仪器的理论研究很少。基于三维有限元法,研究了螺绕环激励式随钻侧向测井仪的测井响应特征,分析了仪器结构参数对测量信号强度的影响。模拟结果表明:测量信号强度与接收线圈距呈正相关关系,仪器源距和钻头短节越长,仪器测量信号的强度越弱。根据模拟结果优选了模拟参数,研究了不同地层电阻率对比度下仪器的探测特性,分析了仪器在不同井斜角和围岩环境下斜井中的测井响应特征。螺绕环激励式随钻侧向测井仪探测深度较电缆式侧向测井仪浅,但可以满足随钻测井需求。研究结果对螺绕环激励式随钻侧向测井仪结构参数设计及测井解释方法研究均具有一定的指导意义。

     

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出版历程
  • 收稿日期:  2017-10-20
  • 修回日期:  2018-01-13
  • 刊出日期:  1900-01-01

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