留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

煤层水平井中随钻电磁波仪器影响因素分析及电阻率模拟计算

陈刚 张冀冠 李泉新 刘志毅

陈刚,张冀冠,李泉新,等.煤层水平井中随钻电磁波仪器影响因素分析及电阻率模拟计算[J].煤田地质与勘探,2022,50(1):45−51. doi: 10.12363/issn.1001-1986.21.10.0595
引用本文: 陈刚,张冀冠,李泉新,等.煤层水平井中随钻电磁波仪器影响因素分析及电阻率模拟计算[J].煤田地质与勘探,2022,50(1):45−51. doi: 10.12363/issn.1001-1986.21.10.0595
CHEN Gang,ZHANG Jiguan,LI Quanxin,et al.Influential factors of the electromagnetic wave instrument while drilling in coal seam horizontal wells and resistivity simulation calculation[J].Coal Geology & Exploration,2022,50(1):45−51. doi: 10.12363/issn.1001-1986.21.10.0595
Citation: CHEN Gang,ZHANG Jiguan,LI Quanxin,et al.Influential factors of the electromagnetic wave instrument while drilling in coal seam horizontal wells and resistivity simulation calculation[J].Coal Geology & Exploration,2022,50(1):45−51. doi: 10.12363/issn.1001-1986.21.10.0595

煤层水平井中随钻电磁波仪器影响因素分析及电阻率模拟计算

doi: 10.12363/issn.1001-1986.21.10.0595
基金项目: 陕西省重点研发计划项目(2020GY-089);国家自然科学基金项目(42102350);中煤科工集团西安研究院顶层设计项目(2020XAYDC01)
详细信息
    第一作者:

    陈刚,1986年生,男,山西大同人,博士后,副研究员,从事地球物理测井工作. E-mail:chengang@cctegxian.com

  • 中图分类号: P631

Influential factors of the electromagnetic wave instrument while drilling in coal seam horizontal wells and resistivity simulation calculation

  • 摘要: 为掌握煤层水平井中随钻电磁波仪器探测影响因素,通过有限元数值模拟研究顶底板围岩电阻率、仪器偏心、煤层井眼垮塌和煤层厚度等因素对电阻率测量值的影响,分析高阻煤岩地层条件下幅度比和相位差计算的电阻率响应规律。在此基础上,建立三层地质数学模型,模拟不同发射频率情况下随钻电磁波仪器钻进煤层时,幅度比和相位差电阻率计算解析解和数值解的差异,以及煤层相对介电常数对幅度比和相位差计算的影响。模拟结果表明:幅度比和相位差计算的电阻率解析解和数值解符合度很高,但当电阻率大于100 Ω·m时,幅度比电阻率已经不能反映煤层的真实电阻率,所以在实际处理解释过程中用相位差电阻率要好些;高阻煤层不同发射频率情况下,电阻率数据主要对煤层电阻率敏感,对介电常数不敏感,只有在超高频时,介电常数才会对电磁波传播造成较大影响。

     

  • 图  双发双收随钻电磁波测井仪器结构

    Fig. 1  Structure diagram of the two-generator and two-receiver electromagnetic wave logging tool while drilling

    图  相位差解析解和数值解对比

    Fig. 2  Comparison between analytical and numerical solutions of phase difference

    图  幅度比解析解和数值解对比

    Fig. 3  Comparison between the analytical solution and numerical solution of the amplitude ratio

    图  2 MHz幅度比刻度视电阻率曲线线性插值

    Fig. 4  Linear interpolation diagram of the 2 MHz amplitude ratio scale apparent resistivity curve

    图  400 kHz幅度比刻度视电阻率曲线线性插值

    Fig. 5  Linear interpolation diagram of the 400 kHz amplitude ratio scale apparent resistivity curve

    图  幅度比-相位差曲线

    Fig. 6  Amplitude ratio and phase difference curves

    图  煤层厚度影响图版

    Fig. 7  Influence chart of coal seam thickness

    图  顶底板围岩影响图版

    Fig. 8  Influence chart of surrounding rock of the roof and floor

    图  仪器偏心影响图版

    Fig. 9  Instrument eccentricity influence chart

    图  10  井径影响图版

    Fig. 10  Well diameter influence chart

    表  1  岩石电阻率

    Table  1  Rock resistivity

    名称电阻率/(Ω·m)名称电阻率/(Ω·m)
    泥灰岩5~5×$ {10}^{2} $黏土(1~2)×$ {10}^{2} $
    石灰岩50~5 000页岩10~100
    白云岩50~5 000泥质页岩5~1 000
    硬石膏10~$ {10}^{6} $疏松页岩2~50
    无烟煤1~1 000致密页岩20~1 000
    烟煤10~$ {10}^{6} $含油气砂岩2~1 000
    下载: 导出CSV
  • [1] 葛世荣. 智能化采煤装备的关键技术[J]. 煤炭科学技术,2014,42(9):7−11.

    GE Shirong. Key technology of intelligent coal mining equipment[J]. Coal Science and Technology,2014,42(9):7−11.
    [2] 陈刚,范宜仁,李泉新. 顺煤层钻进随钻方位电磁波顶底板探测影响因素[J]. 煤田地质与勘探,2019,47(6):201−206.

    CHEN Gang,FAN Yiren,LI Quanxin. Influencing factors of azimuth electromagnetic wave roof and floor detection while drilling along coal seam[J]. Coal Geology & Exploration,2019,47(6):201−206.
    [3] CHEN Gang,FAN Yiren,LI Quanxin. A study of coalbed methane(CBM) reservoir boundary detections based on azimuth electromagnetic waves[J]. Journal of Petroleum Science and Engineering,2019,179:432−443.. doi: 10.1016/j.petrol.2019.04.063
    [4] CHEN Gang,FAN Yiren,LI Quanxin. Using an azimuth electromagnetic wave imaging method to detect and characterize coal−seam interfaces and low−resistivity anomalies[J]. Journal of Environmental & Engineering Geophysics,2020,25(1):75−87.
    [5] 王磊,范宜仁,黄瑞,等. 各向异性介质多分量感应测井三维Born几何因子理论研究[J]. 物理学报,2015,64(23):239301.. doi: 10.7498/aps.64.239301

    WANG Lei,FAN Yiren,HUANG Rui,et al. Three dimensional born geometrical factor of multi−component induction logging in anisotropic media[J]. Acta Physica Sinica,2015,64(23):239301.. doi: 10.7498/aps.64.239301
    [6] FREDERICKS P D,HEARN F P,WISLER M M. Formation evaluation while drilling with a dual propagation resistivity tool[J]. SPE Annual Technical Conference and Exhibition,1989:19622.
    [7] 刘乃震,王忠,刘策. 随钻电磁波传播方位电阻率仪地质导向关键技术[J]. 地球物理学报,2015,58(5):1767−1775.. doi: 10.6038/cjg20150526

    LIU Naizhen,WANG Zhong,LIU Ce. Theories and key techniques of directional electromagnetic propagation resistivity tool for geosteering applications while drilling[J]. Chinese Journal of Geophysics,2015,58(5):1767−1775.. doi: 10.6038/cjg20150526
    [8] 陈华,范宜仁,洪德成. 随钻电磁波测井中的数学模型[J]. 数学建模及其应用,2017,6(3):26−34.. doi: 10.3969/j.issn.2095-3070.2017.03.003

    CHEN Hua,FAN Yiren,HONG Decheng. Mathematical model in electromagnetic logging while drilling[J]. Mathematical Modeling and Applications,2017,6(3):26−34.. doi: 10.3969/j.issn.2095-3070.2017.03.003
    [9] 李会银,苏义脑,盛利民,等. 多深度随钻电磁波电阻率测量系统设计[J]. 中国石油大学学报(自然科学版),2010,34(3):38−42.

    LI Huiyin,SU Yinao,SHENG Limin,et al. A logging while drilling tool for multi−depth electromagnetic wave resistivity measurement[J]. Journal of China University of Petroleum(Natural Science Edition),2010,34(3):38−42.
    [10] 赵媛,顿月芹,袁建生. 随钻电磁波测井仪器线圈系参数设计方法研究[J]. 测井技术,2011,35(3):224−229.. doi: 10.3969/j.issn.1004-1338.2011.03.007

    ZHAO Yuan,DUN Yueqin,YUAN Jiansheng. Study on coil system design for MWD electromagnetic wave logging tools[J]. Well Logging Technology,2011,35(3):224−229.. doi: 10.3969/j.issn.1004-1338.2011.03.007
    [11] 杨震,杨锦舟,杨涛. 随钻方位电磁波仪器补偿测量方法研究[J]. 中国石油大学学报(自然科学版),2015,39(3):62−69.

    YANG Zhen,YANG Jinzhou,YANG Tao. Research on azimuthal electromagnetic tool while drilling measuring method of compensation[J]. Journal of China University of Petroleum(Natural Science Edition),2015,39(3):62−69.
    [12] 高杰,辛秀艳,陈文辉,等. 随钻电磁波电阻率测井之电阻率转化方法与研究[J]. 测井技术,2008,32(6):503−507.. doi: 10.3969/j.issn.1004-1338.2008.06.004

    GAO Jie,XIN Xiuyan,CHEN Wenhui,et al. Resistivity derivation in electromagnetic wave propagation resistivity logging while drilling[J]. Well Logging Technology,2008,32(6):503−507.. doi: 10.3969/j.issn.1004-1338.2008.06.004
    [13] 杨锦舟,林楠,张海花,等. 相对介电常数对电磁波电阻率测量值的影响及校正方法[J]. 石油钻探技术,2009,37(1):29−33.. doi: 10.3969/j.issn.1001-0890.2009.01.007

    YANG Jinzhou,LIN Nan,ZHANG Haihua,et al. The impact of dielectric on MWD array electromagnetic wave resistivity tools and correction method[J]. Petroleum Drilling Techniques,2009,37(1):29−33.. doi: 10.3969/j.issn.1001-0890.2009.01.007
    [14] 魏宝君. 一种新型随钻电阻率测井仪器的响应和刻度[J]. 地球物理学报,2007,50(2):632−641.. doi: 10.3321/j.issn:0001-5733.2007.02.039

    WEI Baojun. Response and calibration of a new logging−while−drilling resistivity tool[J]. Chinese Journal of Geophysics,2007,50(2):632−641.. doi: 10.3321/j.issn:0001-5733.2007.02.039
    [15] 范宜仁,胡云云,李虎,等. 随钻电磁波测井仪器偏心条件下响应模拟与分析[J]. 中国石油大学学报(自然科学版),2014,38(2):59−66.

    FAN Yiren,HU Yunyun,LI Hu,et al. Numerical modeling and analysis of responses of eccentric electromagnetics logging while drilling tool[J]. Journal of China University of Petroleum(Natural Science Edition),2014,38(2):59−66.
    [16] FAN Yiren,WANG Lei,GE Xinmin,et al. Response simulation and corresponding analysis of dual laterolog in cavernous reservoirs[J]. Petroleum Exploration and Development,2016,43(2):261−267.. doi: 10.1016/S1876-3804(16)30029-5
    [17] WANG Lei,FAN Yiren,YUAN Chao,et al. Selection criteria and feasibility of the inversion model for azimuthal electromagnetic logging while drilling(LWD)[J]. Petroleum Exploration and Development,2018,45(5):974−982.. doi: 10.1016/S1876-3804(18)30101-0
    [18] WANG Lei,LI Hu,FAN Yiren,et al. Sensitivity analysis and inversion processing of azimuthal resistivity logging–while–drilling measurements[J]. Journal of Geophysics and Engineering,2018,15(6):2339−2349.. doi: 10.1088/1742-2140/aacbf4
    [19] BITTAR M S,KLEIN J D,BESTE R,et al. A new azimuthal deep−reading resistivity tool for geosteering and advanced formation evaluation[J]. SPE Reservoir Evaluation & Engineering,2009,12(2):270−279.
    [20] DENICHOU J M,DUPUIS C. Automatic inversion of deep−directional−resistivity measurements for well placement and reservoir description[J]. The Leading Edge,2015,34(5):504−512.. doi: 10.1190/tle34050504.1
    [21] WANG Jing,LIU R C. Application of complex image theory in geosteering[J]. IEEE Transactions on Geoscience & Remote Sensing,2014,52(12):7629−7636.
  • 加载中
图(11) / 表(1)
计量
  • 文章访问数:  310
  • HTML全文浏览量:  15
  • PDF下载量:  54
  • 被引次数: 0
出版历程
  • 收稿日期:  2021-10-29
  • 修回日期:  2021-12-27
  • 发布日期:  2022-02-01
  • 网络出版日期:  2022-01-27

目录

    /

    返回文章
    返回