Volume 40 Issue 1
Jan.  2023
Turn off MathJax
Article Contents
Article Navigation >  DRILLING FLUID & COMPLETION FLUID  > 2023  >  40(1): 132-136
ZHAO Zhiqiang, LUO Jiansheng.Laboratory study on the heat-release blockage removing agent thermacid[J]. Drilling Fluid & Completion Fluid，2023, 40（1）：132-136 doi: 10.12358/j.issn.1001-5620.2023.01.018
Citation: ZHAO Zhiqiang, LUO Jiansheng.Laboratory study on the heat-release blockage removing agent thermacid[J]. Drilling Fluid & Completion Fluid，2023, 40（1）：132-136 doi: 10.12358/j.issn.1001-5620.2023.01.018
shu

Laboratory Study on the Heat-Release Blockage Removing Agent ThermAcid

doi: 10.12358/j.issn.1001-5620.2023.01.018

  • China Oilfield Services Ltd., Yanjiao, Hebei 065201

  • Received Date: 2022-09-23
  • Rev Recd Date: 2022-10-19
  • Publish Date: 2023-01-31
    Abstract
  • Weak gel fluid is used as completion and workover fluids in offshore oil and gas development. The mud cakes and the solids contamination resulted from the use of the weak gel fluids cannot be effectively removed. To deal with this problem, a heat-release blockage removing agent ThermAcid was developed. ThermAcid is water soluble, and can slowly release acid through hydrolysis reaction, thus can be used to effectively remove the contaminants left in the deep part of a reservoir. Hydrolysis kinetics study shows that the hydrolysis rate of ThermAcid increases with pH and temperature. Dissolution of calcium carbonate proves the above rules. Corrosion rate measurement shows that at 120 ℃, the corrosion rate of ThermAcid to steel plate is 2.31 g/(m2·h), less than the corrosion rate of 5% HCl, which is 8.31 g/(m2·h), and this is beneficial to the mitigation of corrosion to downhole drilling tools. Gel breaking experiments on 30 mD and 400 mD sand-beds show that compared with 5%HCl, ThermAcid breaks gel more uniformly and more thoroughly, and the flowback pressure is therefore lower.

     

    • FullText(HTML)
  • loading
    • References(10)
  • [1]
    潘亿勇. 海上油田非均质砂岩储层高效酸化增产增注技术研究[D]. 成都: 西南石油大学, 2017.

    PAN Yiyong. Study on the high efficient acidizing technology of heterogeneous sandstone resevoirs in offshore oil field[D]. Chengdu: Southwest Petroleum University, 2017.
    [2]
    岳前升,刘书杰,何保生,等. 海洋油田水平井胶囊破胶液技术[J]. 大庆石油学院学报,2010,34(4):85-88.

    YUE Qiansheng, LIU Shujie, HE Baosheng, et al. Laboratory study on microcapsulated gel breaker fluid for horizontal wells in offields[J]. Journal of Daqing Petroleum Institute, 2010, 34(4):85-88.
    [3]
    沈园园,王在明,朱宽亮,等. 溶胶-凝胶法制备核壳结构的延迟破胶剂[J]. 钻井液与完井液,2020,37(1):121-126.

    SHEN Yuanyuan, WANG Zaiming, ZHU Kuanliang, et al. A delayed gel breaker with core-shell structure made with sol-gel method[J]. Drilling Fluid & Completion Fluid, 2020, 37(1):121-126.
    [4]
    张荣,李自立,王洪伟. 无固相弱凝胶钻开液延时破胶技术研究[J]. 钻井液与完井液,2011,28(2):42-44. doi: 10.3969/j.issn.1001-5620.2011.02.012

    ZHANG Rong, LI Zili, WANG Hongwei. Research on delayed gelout technology of weak-gelled solid-free drill-in fluid[J]. Drilling Fluid & Completion Fluid, 2011, 28(2):42-44. doi: 10.3969/j.issn.1001-5620.2011.02.012
    [5]
    魏裕森, 熊友明, 周书胜. 海上油气田智能破胶完井液体系[J]. 钻井液与完井液, 2021, 38(2): 226-230.

    WEI Yusen, XIONG Youming, ZHOU Shusheng. Study on intelligent gel breaking completion fluid system in offshore oil-gas field[J]. Drilling Fluid & Completion Fluid, 2021, 38(2): 226-230.
    [6]
    李超, 黄玥, 刘刚, 等. 多分支井缓释自破胶完井液设计及性能[J]. 钻井液与完井液, 2021, 38(2): 218-225.

    LI Chao, HUANG Yue, LIU Gang, et al. Design and performance of a slow-release self-gel-breaking completion fluid for multilateral wells[J]. Drilling Fluid & Completion Fluid, 2021, 38(2): 218-225.
    [7]
    EZIO BATTISTELA, DANIELE BIANCHIA, MARCO FORNAROLIA. Enzymes breakers for viscosity enhancing polymers[J]. Journal of Petroleum Science and Engineering, 2011, 77(1):10-17. doi: 10.1016/j.petrol.2011.02.003
    [8]
    刘彝,罗成,李良川,等. 高温生物酶双元破胶性能与现场应用[J]. 油田化学,2019,36(3):394-399. doi: 10.19346/j.cnki.1000-4092.2019.03.003

    LI Yi, LUO Cheng, LI Liangchuan, et al. Field application and the performance of biological breakdown technology at high temperature[J]. Oilfield Chemistry, 2019, 36(3):394-399. doi: 10.19346/j.cnki.1000-4092.2019.03.003
    [9]
    刘炜,熊楠,吴志鹏,等. 缓速酸种类及乳化酸应用研究进展[J]. 精细石油化工进展,2010(9):12-15. doi: 10.3969/j.issn.1009-8348.2010.09.004

    LIU Wei, XIONG Nan, WU Zhipeng, et al. Review on types of retarded acid and application of emulsifion acid[J]. Advances in Fine Petrochemicals, 2010(9):12-15. doi: 10.3969/j.issn.1009-8348.2010.09.004
    [10]
    孙林,李旭光,黄利平,等. 渤海油田注水井延效酸化技术研究与应用[J]. 石油钻探技术,2021,49(2):90-95. doi: 10.11911/syztjs.2021029

    SUN Lin, LI Xuguang, HUANG Liping, et al. Reseach and application of prolonged-effect acidizing technology for water injection wells in the Bohai oilfield[J]. Petroleum Drilling Techniques, 2021, 49(2):90-95. doi: 10.11911/syztjs.2021029
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Figures(9)  / Tables(1)

    Get Citation
    PDF
    XML

    Article Metrics

    Article views (577) PDF downloads(54) Cited by()
    Proportional views
    Related

    Copyright 《Drilling Fluid & Completion Fluid》津ICP备13002319号-1

    Address：Editorial Department of Drilling Fluid and Completion Fluid, Bohai Drilling Engineering Institute, Yanshan South Road, Renqiu City, Hebei ProvinceChina Pos：062552

    Tel：（0317）2725487　2722354Email：zjyywjy@126.com

    Supported by: Beijing Renhe Information Technology Co. Ltd    

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return