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储层友好型钻井液用超微四氧化三锰

王龙 方静 董秀民 王金树 方俊伟 耿云鹏 张建军 徐同台

王龙,方静,董秀民,等. 储层友好型钻井液用超微四氧化三锰[J]. 钻井液与完井液,2023,40(4):467-474 doi: 10.12358/j.issn.1001-5620.2023.04.008
引用本文: 王龙,方静,董秀民,等. 储层友好型钻井液用超微四氧化三锰[J]. 钻井液与完井液,2023,40(4):467-474 doi: 10.12358/j.issn.1001-5620.2023.04.008
WANG Long, FANG Jing, DONG Xiumin, et al.Reservoir friendly ultra-fine manganese tetroxide for drilling fluids[J]. Drilling Fluid & Completion Fluid,2023, 40(4):467-474 doi: 10.12358/j.issn.1001-5620.2023.04.008
Citation: WANG Long, FANG Jing, DONG Xiumin, et al.Reservoir friendly ultra-fine manganese tetroxide for drilling fluids[J]. Drilling Fluid & Completion Fluid,2023, 40(4):467-474 doi: 10.12358/j.issn.1001-5620.2023.04.008

储层友好型钻井液用超微四氧化三锰

doi: 10.12358/j.issn.1001-5620.2023.04.008
基金项目: 中石化科研项目“顺北一区5号断裂带提质提速钻完井技术研究”(P20002)。
详细信息
    作者简介:

    王龙,高级工程师,硕士,1982年生,毕业于中国石油大学(华东),现从事钻井、完井方面的研究和管理工作。E-mail:wanglong.xbsj@sinopec.com。

    通讯作者:

    王金树,E-mail:fangj.xbsj@sinopec.com。

  • 中图分类号: TE254.4

Reservoir Friendly Ultra-fine Manganese Tetroxide for Drilling Fluids

  • 摘要: 在顺北油田深井、超深井钻井中,重晶石加重高密度钻井液体系存在流变参数调节难、沉降稳定性差、储层固相颗粒损害严重等问题。国外微锰(Micromax)在钻井液中的性能表现良好,但其技术垄断和高使用成本限制了其在国内推广应用。为研发高性价比国产微锰产品、构建储层友好型钻井液体系,采用锰矿法制备出钻井液用微锰(DFMT01),并进行结构表征和性能评价,测试了顺北区块高密度聚磺钻井液体系的性能及泥饼酸溶效果,讨论了含锰废液的循环利用。结果表明,DFMT01理化性质良好,密度大于4.7 g/cm3,酸溶率大于99%,D50为1.17 μm,颗粒球形度为0.967,均与国外同类产品相当;该产品加重的聚磺钻井液体系在流变性、滤失性、沉降稳定性、冲蚀性和储层保护特性均达到或超过Micromax加重体系。确定了“碳酸钙中和沉淀-硫酸回收锰离子-混凝法处理废水”处理高浓度酸性含锰废液的组合工艺,处理后水中锰的质量浓度为0.45 mg/L、固体悬浮物为10 mg/L,达到一级标准要求,可实现DFMT01生产、使用和处理的闭环利用。该产品性能优良,成本低,具有非常广阔的推广应用价值。

     

  • 图  1  DFMT01的XRD图谱

    图  2  DFMT01和Micromax扫描电镜(SEM)微观结构

    图  3  DFMT01和Micromax静态图像

    图  4  不同加重剂加重钻井液对叶片的冲蚀速率

    图  5  不同加重剂钻井液体系的沉降因子

    图  6  不同酸液对两种加重钻井液泥饼的酸浸效果

    图  7  10%甲酸常温浸泡泥饼4 h后   外观(左)及切面形貌(右)

    图  8  室温下泥饼表面和切面微观结构及EDS能谱图

    图  9  90 ℃下泥饼表面微观结构及EDS能谱图

    图  10  DFMT01加重剂酸化废液处理与循环利用工艺流程

    表  1  DFMT01和Micromax样品X射线荧光分析 (%)

    加重剂Mn3O4Fe2O3SiO2CaOMgOSO3
    DFMT0192.6293.4450.1371.6830.1690.362
    Micromax96.6722.8020.0650.0230.1840.019
    下载: 导出CSV

    表  2  DFMT01和Micromax样品理化性能

    加重剂ρ/
    g·cm−3
    酸溶率/
    %
    莫氏硬度圆球度粒径分布/μm
    D10D50D90
    DFMT014.7799.25.50.9670.531.173.79
    Micromax4.7899.45.50.9770.481.013.51
    下载: 导出CSV

    表  3  加重剂单剂和加重钻井液体系的磁性评价

    加重剂磁性/GS磁性物/%泥饼黏附系数泥饼磁性/GS
    DFMT010.60.0780.06120.5
    Micromax0.80.1020.06990.7
    重晶石0.60.0890.10510.6
    铁矿粉20.26.1510.203513.7
      注:钻井液体系为1.60 g/cm3的聚磺钻井液体系,测试条件为180 ℃热滚16 h。
    下载: 导出CSV

    表  4  加重剂对聚磺钻井液流变性和滤失性的影响

    加重剂1.6 g/cm32.0 g/cm32.4 g/cm3
    AV/
    mPa·s
    PV/
    mPa·s
    YP/
    Pa
    FLHTHP/
    mL
    AV/
    mPa·s
    PV/
    mPa·s
    YP/
    Pa
    FLHTHP/
    mL
    AV/
    mPa·s
    PV/
    mPa·s
    YP/
    Pa
    FLHTHP/
    mL
    DFMT0154.04014.013.066392714.8110753516.4
    Micromax51.03714.013.663422114.0102723016.2
    重晶石43.53310.510.280542611.612.2
    铁矿粉38.02612.014.448301815.213.2
      注:FLHTHP在180 ℃、3.5 MPa下测定。
    下载: 导出CSV
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出版历程
  • 收稿日期:  2023-01-03
  • 修回日期:  2023-02-13
  • 刊出日期:  2023-07-30

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