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络合铝化学封堵剂PF-ChemSeal评价与现场应用

孙强,  胡进军,  张兴来,  夏小春,  李国钊,  耿铁

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文章导航 > 钻井液与完井液  > 2015 >  32(4): 28-31
孙强, 胡进军, 张兴来, 夏小春, 李国钊, 耿铁. 络合铝化学封堵剂PF-ChemSeal评价与现场应用[J]. 钻井液与完井液, 2015, 32(4): 28-31. doi: 10.3969/j.issn.1001-5620.2015.04.008
引用本文: 孙强, 胡进军, 张兴来, 夏小春, 李国钊, 耿铁. 络合铝化学封堵剂PF-ChemSeal评价与现场应用[J]. 钻井液与完井液, 2015, 32(4): 28-31. doi: 10.3969/j.issn.1001-5620.2015.04.008
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SUN Qiang, HU Jinjun, ZHANG Xinglai, XIA Xiaochun, LI Guozhao, GENG Tie. Evaluation and Field Application of Aluminum Complex as Chemical Sealing Agent[J]. DRILLING FLUID & COMPLETION FLUID, 2015, 32(4): 28-31. doi: 10.3969/j.issn.1001-5620.2015.04.008
Citation: SUN Qiang, HU Jinjun, ZHANG Xinglai, XIA Xiaochun, LI Guozhao, GENG Tie. Evaluation and Field Application of Aluminum Complex as Chemical Sealing Agent[J]. DRILLING FLUID & COMPLETION FLUID, 2015, 32(4): 28-31. doi: 10.3969/j.issn.1001-5620.2015.04.008
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络合铝化学封堵剂PF-ChemSeal评价与现场应用

doi: 10.3969/j.issn.1001-5620.2015.04.008
  • 1.

    中海油田服务股份有限公司油田化学研究院,河北燕郊

  • 2. 中海油田服务股份有限公司油田化学事业部塘沽基地,天津

基金项目: 中国海洋石油总公司课题“AQUA-MAX高性能水基钻井液的研制”(YHB12YF001)。
详细信息
    作者简介:

    孙强,工程师,1979年生,毕业于中国石油大学应用化学专业,现在从事钻井液技术研究工作。地址:北京市255信箱中海油服油田化学研究院;邮政编码101149;电话(0316)3367028;E-mail:sunqiang7@cosl.com.cn。

  • 中图分类号: TE254.4

Evaluation and Field Application of Aluminum Complex as Chemical Sealing Agent

  • Oilfield Chemistry R&D Institute, COSL, P. O. Box 255, Beijing 101149, China

    摘要
  • 摘要: 探讨了络合铝作为化学封堵材料的化学基础和化学封堵原理, 并对络合铝化学封堵剂PF-ChemSeal 进行了室内评价。SEM电镜扫描实验结果显示,PF-ChemSeal 可以对页岩孔喉和微裂缝进行有效封堵,能够在页岩表面和近井壁形成致密的铝络合物沉淀层。动态页岩孔隙压力传递实验结果显示,使用PF-ChemSeal 后页岩的半透膜效率提高率达到80%以上,作用效果接近于油基钻井液。氟离子浓度测量实验可以实时监测PF-ChemSeal 在钻井液体系中的含量,为现场作业提供可靠的化学封堵剂浓度数据。渤海CFD 区块现场使用结果显示,PF-ChemSeal 与水基钻井液体系配伍性好,泥页岩井段井壁稳定,井径规则。PF-ChemSeal 减少了泥页岩孔隙压力传递效应,能满足页岩复杂地层井壁稳定要求。

     

    Abstract: This paper discusses the chemical principles of aluminum complex as chemical sealing agent. In laboratory studies, an aluminum complex, PF-ChemSeal, was evaluated using SEM for its ability in sealing pore throats and micro fractures of shales. PF-ChemSeal precipitates on the surface of shales and borehole walls to form a dense layer of aluminum complex. In dynamic pore pressure transmission studies, the semi-membrane efficiency of shales is increased to higher than 80% with the use of PF-ChemSeal. The content of PF-ChemSeal in drilling fluids can be monitored by measuring the concentration in drilling fluids of fluorine ions. PFChemSeal has been used in the Block CFD in Bohai Bay, and is well compatible with other water base mud agents. Gauge holes have been drilled with PF-ChemSeal treated muds. PF-ChemSeal minimizes the transmission of pore pressure in shales, hence making the shales more stable.

     

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    • 参考文献(11)
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  • 收稿日期:  2015-04-13
  • 刊出日期:  2015-07-31

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