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塔河稠油高黏特性及其侵入钻井液治理探索

刘湘华 范胜 张淑霞 李双贵 于洋 沐宝泉 刘贺

刘湘华,范胜,张淑霞,等. 塔河稠油高黏特性及其侵入钻井液治理探索[J]. 钻井液与完井液,2024,41(2):198-204 doi: 10.12358/j.issn.1001-5620.2024.02.009
引用本文: 刘湘华,范胜,张淑霞,等. 塔河稠油高黏特性及其侵入钻井液治理探索[J]. 钻井液与完井液,2024,41(2):198-204 doi: 10.12358/j.issn.1001-5620.2024.02.009
LIU Xianghua, FAN Sheng, ZHANG Shuxia, et al.High viscosity characteristics of heavy oils produced in Tahe oilfield and treatment of drilling fluids contaminated by invasion of the heavy oils[J]. Drilling Fluid & Completion Fluid,2024, 41(2):198-204 doi: 10.12358/j.issn.1001-5620.2024.02.009
Citation: LIU Xianghua, FAN Sheng, ZHANG Shuxia, et al.High viscosity characteristics of heavy oils produced in Tahe oilfield and treatment of drilling fluids contaminated by invasion of the heavy oils[J]. Drilling Fluid & Completion Fluid,2024, 41(2):198-204 doi: 10.12358/j.issn.1001-5620.2024.02.009

塔河稠油高黏特性及其侵入钻井液治理探索

doi: 10.12358/j.issn.1001-5620.2024.02.009
基金项目: 山东省自然科学基金“稠环芳烃对CO水热变换新生氢的富存作用机制及协同调控稠油改质研究”(ZR2017BB021);中国博士后科学基金面上项目“CO水热变换新生氢对稠环芳烃氢化的作用机制研究”(2016M602219)。
详细信息
    作者简介:

    刘湘华,高级工程师,1979年生,毕业于中国石油大学(华东)石油工程专业,现在从事钻完井工程管理及相关研究工作。电话 (0991)3161153;E-mail:liuxh387.sbsj@sinopec.com

    通讯作者:

    张淑霞,E-mail:zshuxia823@163.com

  • 中图分类号: TE254

High Viscosity Characteristics of Heavy Oils Produced in Tahe Oilfield and Treatment of Drilling Fluids Contaminated by Invasion of the Heavy Oils

  • 摘要: 为了解决塔河高黏稠油侵害钻井液的问题,研究对比了塔河稠油与典型劣质重油的关键性质及塔河稠油沥青质-甲苯溶液黏度随浓度的变化规律,发现塔河稠油的高黏特性主要原因是沥青质含量高与芳香度高,以此为基础,设计2种实验方案。一是针对钻井初期稠油侵入量少的情况,通过在钻井液中添加适宜的分散剂和芳香馏分的复配体系,将稠油进行分散,结果为5#钻井液体系效果最好,TH121155X井稠油在无固钻井液中的分散度超过99%。二是针对稠油侵入量大的情况,对稠油进行包裹,使稠油失去黏附性,降低稠油在钻具上黏附,确保地面振动筛能够顺利筛分。研究数据表明,BGJ-2-4复配的包裹剂对塔河TH12471H井稠油具有良好的包裹效果,罐黏附率仅为0.3%。

     

  • 图  1  塔河稠油与典型重油关键性质对比

    图  2  沥青质浓度对沥青质-甲苯体系黏度的影响

    图  3  钻井液体系分散稠油效果评价照片

    图  4  包裹剂复配对稠油包裹情况照片

    注:每组图片从左往右依次为水冲洗前、水冲洗后和金属棒水冲洗后。

    表  1  7组钻井液体系出现分层时间

    钻井液不同温度分层时间/h钻井液不同温度分层时间/h
    20 ℃50 ℃20 ℃50 ℃
    1#28.000.105#306.0
    2#0.250.226#284.0
    3#28.004.007#295.5
    4#0.170.15
    下载: 导出CSV

    表  2  芳溶剂用量对塔河稠油在钻井液中分散性能的影响

    芳溶剂/
    %
    分散时间/
    h
    稠油量/
    %
    稠油分散度/
    %
    0(空白实验)2.01015.20
    32.01099.13
    52.01099.47
    72.01099.87
      注:分散剂加入量为0.3%。
    下载: 导出CSV

    表  3  塔河稠油量、分散时间对其在钻井液中分散性能影响

    稠油量/
    %
    芳溶剂/
    %
    分散时间/
    h
    稠油分散度/
    %
    1031.095.33
    31.597.86
    32.099.13
    52.099.47
    1532.098.02
    52.099.06
    2032.095.06
    52.097.33
      注:分散剂加入量为0.3%。
    下载: 导出CSV

    表  4  不同包裹剂和包裹剂复配对稠油包裹后的黏附情况

    包裹剂/
    %
    罐黏附
    率/%
    棒黏附
    率/%
    包裹剂/
    %
    罐黏附
    率/%
    棒黏附
    率/%
    空白实验75.66.3BGJ-2-18.915.7
    BGJ-23.25.7BGJ-2-27.325.7
    BGJ-410.22.1BGJ-2-310.726.0
    BGJ-511.33.3BGJ-2-40.30
      注:稠油加量为20%,在150 ℃包裹2 h,包裹剂加量为10%。
    下载: 导出CSV

    表  5  不同因素对包裹效果的影响

    稠油/%包裹时间/h包裹温度/℃包裹剂/%
    1020301.01.52.01301401505.07.510
    罐黏附率/%0.30.30.40.30.30.30.50.40.39.35.70.5
    棒黏附率/%0001.7001.20.5039.414.31.2
      注:表中对应非变量条件为150 ℃、2 h、包裹剂量10%、稠油量20%,如考察稠油加入量时,其他条件为150 ℃、2 h、包裹剂量为10%。
    下载: 导出CSV

    表  6  包裹剂用量对20%稠油包裹效果(1.5 h、130 ℃)

    BGJ-2-4/
    %
    稠油/
    %
    罐黏附率/
    %
    棒黏附率/
    %
    5.055.327.4
    5.0209.339.4
    7.5205.714.3
    1050.40.5
    10200.51.2
    下载: 导出CSV
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出版历程
  • 收稿日期:  2023-12-12
  • 修回日期:  2024-01-22
  • 录用日期:  2024-02-12
  • 刊出日期:  2024-03-30

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