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超高温高密度油基钻井液研究与性能评价

邱正松 赵冲 张现斌 张健 赵颖 陈安亮 杨中锋

邱正松,赵冲,张现斌,等. 超高温高密度油基钻井液研究与性能评价[J]. 钻井液与完井液,2021,38(6):663-670 doi: 10.12358/j.issn.1001-5620.2021.06.001
引用本文: 邱正松,赵冲,张现斌,等. 超高温高密度油基钻井液研究与性能评价[J]. 钻井液与完井液,2021,38(6):663-670 doi: 10.12358/j.issn.1001-5620.2021.06.001
QIU Zhengsong, ZHAO Chong, ZHANG Xianbin, et al.Study and performance evaluation of ultra-high temperature high density oil based drilling fluids[J]. Drilling Fluid & Completion Fluid,2021, 38(6):663-670 doi: 10.12358/j.issn.1001-5620.2021.06.001
Citation: QIU Zhengsong, ZHAO Chong, ZHANG Xianbin, et al.Study and performance evaluation of ultra-high temperature high density oil based drilling fluids[J]. Drilling Fluid & Completion Fluid,2021, 38(6):663-670 doi: 10.12358/j.issn.1001-5620.2021.06.001

超高温高密度油基钻井液研究与性能评价

doi: 10.12358/j.issn.1001-5620.2021.06.001
基金项目: 中国石油天然气集团公司重大科技专项“油田用化工新材料产品开发”(2020E-28);天津市科技计划项目“非常规和深层油气资源开发钻井液关键技术研究”(19PTSYJC00120)资助
详细信息
    作者简介:

    邱正松,博士生导师,1964年生,长期从事钻井液完井液理论与技术研究的科研及教学工作。E-mail:qiuzs63@sina.com

    通讯作者:

    赵冲,1974年生,在读博士研究生,主要从事钻井液新技术研究工作,E-mail:zhaochong@cnpc.com.cn

  • 中图分类号: TE254.3

Study and Performance Evaluation of Ultra-High Temperature High Density Oil Based Drilling Fluids

  • 摘要: 深层超深层油气钻探中面临着超高温高压、高压盐水、巨厚盐膏层和泥页岩层等复杂地质条件,导致油基钻井液的乳化稳定性、流变、滤失损耗等性能极难调控。合成了不饱和酸酐接枝妥尔油脂肪烃基的咪唑啉酰胺类主乳化剂和辅乳化剂,选用抗高温增黏剂、流型调节剂、润湿剂和降滤失剂,采用API重晶石和超细硫酸钡复合加重,构建了超高温高密度油基钻井液配方。性能评价结果表明,该超高温高密度油基钻井液抗温达220 ℃,复合加重后流变性显著改善,密度最高可达2.8 g/cm3,可抗40%淡水、40%复合盐水、5%~10%泥页岩岩屑和5%~10%石膏污染;在65 ℃/常压~220 ℃/172.5 MPa下具有良好的流变稳定性和悬浮稳定性。该超高温高密度油基钻井液为深层超深层油气资源的安全高效钻探提供了技术支撑。

     

  • 图  1  高温乳化剂红外光谱分析

    表  1  含乳化剂油包水钻井液的抗温能力评价

    热滚
    条件
    PV/
    mPa·s
    YP/
    Pa
    FLHTHP/
    mL
    ES/
    V
    热滚前36.05.761328
    150 ℃、16 h36.07.202.81242
    180 ℃、16 h35.04.803.61049
    200 ℃、16 h34.54.804.2917
    220 ℃、16 h30.04.324.8709
    下载: 导出CSV

    表  2  密度为2.5 g/cm3油基钻井液高温热滚前后性能评价

    热滚
    条件
    PV/
    mPa·s
    YP/
    Pa
    Gel/
    Pa/Pa
    FLHTHP/
    mL
    ES/
    V
    热滚前6918.012.5/14.51893
    200 ℃、16 h678.04.0/5.05.21242
    220 ℃、16 h616.53.5/5.07.61034
    下载: 导出CSV

    表  3  抗温200~220 ℃密度2.5 g/cm3油基钻井液配方优化及性能评价

    钻井液热滚
    条件
    PV/
    mPa·s
    YP/
    Pa
    Gel/
    Pa/Pa
    FLHTHP/
    mL
    ES/
    V
    3#热滚前682016.0/18.52070
    220 ℃、16 h6611.58.5/14.04.82055
    200 ℃、72 h68127.0/12.55.21716
    220 ℃、72 h6112.57.5/15.06.01882
    4#热滚前942010.0/17.52063
    220 ℃、16 h552.52.5/11.52.42070
    200 ℃、72 h603.54.0/7.55.62055
    220 ℃、72 h526.53.5/6.55.62062
    下载: 导出CSV

    表  4  超细硫酸钡对超高温高密度油基 钻井液性能影响的对比评价

    ρ/
    g·cm−3
    热滚
    条件
    PV/
    mPa·s
    YP/
    Pa
    Gel/
    Pa/Pa
    FLHTHP/
    mL
    ES/
    V
    SR
    2.70
    (4#
    热滚前13520.012.5/15.02048
    200 ℃、16 h938.04.0/8.55.020500.998
    2.70
    (4#*)
    热滚前8811.57.5/10.52048
    200 ℃、16 h687.05.0/7.54.220501.000
    2.70
    (4#
    热滚前11216.510.0/15.02048
    220 ℃、16 h905.02.0/7.54.820500.993
    2.70
    (4#*)
    热滚前11522.516.0/20.02048
    220 ℃、16 h794.03.0/7.54.020501.000
    2.60
    (4#*)
    热滚前7718.012.0/21.02048
    200 ℃、16 h715.03.0/5.04.820501.000
    220 ℃、16 h806.05.0/7.05.219501.000
    2.80
    (5#
    热滚前9215.06.0/10.02050
    220 ℃、16 h937.05.0/6.53.220501.000
    220 ℃、72 h9211.07.0/14.02.820501.000
    2.80
    (6#
    热滚前688.54.5/8.02050
    220 ℃、16 h688.55.5/7.05.017361.000
    220 ℃、72 h8711.08.0/10.56.010911.000
      注:4#*配方为4#+90%高密度重晶石+10%超细硫酸钡
    下载: 导出CSV

    表  5  超高温高密度油基钻井液(7#配方)抗污染实验(150 ℃、16 h)

    污染
    因素
    PV/
    mPa·s
    YP/
    Pa
    Gel/
    Pa/Pa
    FLHTHP/
    mL
    ES/
    V
    污染前56.09.04.0/4.53.22048
    200 mL淡水55.011.04.5/6.53.41267
    400 mL淡水67.013.55.5/8.53.6703
    200 mL复合盐水67.015.53.5/4.54.4765
    400 mL复合盐水84.021.54.5/5.01.0401
    100 g岩屑68.014.56.0/8.52.02045
    100 g硫酸钙75.012.55.0/6.53.91872
      注:污染因素为每升钻井液的加入量
    下载: 导出CSV

    表  6  超高温高密度油基钻井液(8#配方)抗污染实验(180 ℃、16 h)

    污染
    因素
    PV/
    mPa·s
    YP/
    Pa
    Gel/
    Pa/Pa
    FLHTHP/
    mL
    ES/
    V
    污染前669.05.0/6.55.42048
    400 mL清水6112.05.0/7.04.0384
    400 mL复合盐水7415.57.0/8.05.0388
    50 g岩屑876.55.2/7.04.21243
    50 g硫酸钙835.55.6/8.04.21509
      注:污染因素为每升钻井液的加入量
    下载: 导出CSV

    表  7  超高温高密度油基钻井液的高温高压流变性测试

    T/
    P/
    MPa
    φ600φ300PV/
    mPa·s
    YP/
    Pa
    φ6φ3LSYP/
    Pa
    65107.564.942.611.1515.914.76.48
    6534.5180.7104.875.914.4519.718.58.30
    15069.087.056.230.812.7017.216.37.39
    150138.0114.964.950.07.4515.414.36.34
    180138.092.952.640.36.1513.912.85.62
    180172.5119.969.750.29.7515.514.66.58
    200172.5110.862.448.27.2014.213.46.05
    220172.5105.459.246.26.5012.911.95.32
    下载: 导出CSV

    表  8  环境温度对油基钻井液流变性的影响

    T/℃φ100φ6T/℃φ100φ6
    101861940618
    201531650477
    30651065326
    下载: 导出CSV
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  • 收稿日期:  2021-08-20
  • 网络出版日期:  2021-11-30
  • 刊出日期:  2021-11-30

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