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抗超高温水基钻井液用聚合物降滤失剂的研制

高伟 李银婷 余福春 李双贵 毛惠

高伟, 李银婷, 余福春, 李双贵, 毛惠. 抗超高温水基钻井液用聚合物降滤失剂的研制[J]. 钻井液与完井液, 2021, 38(2): 146-151,157. doi: 10.3969/j.issn.1001-5620.2021.02.003
引用本文: 高伟, 李银婷, 余福春, 李双贵, 毛惠. 抗超高温水基钻井液用聚合物降滤失剂的研制[J]. 钻井液与完井液, 2021, 38(2): 146-151,157. doi: 10.3969/j.issn.1001-5620.2021.02.003
GAO Wei, LI Yinting, YU Fuchun, LI Shuanggui, MAO Hui. Development of A Polymer Filter Loss Reducer for Ultra-High Temperature Water Base Drilling Fluids[J]. DRILLING FLUID & COMPLETION FLUID, 2021, 38(2): 146-151,157. doi: 10.3969/j.issn.1001-5620.2021.02.003
Citation: GAO Wei, LI Yinting, YU Fuchun, LI Shuanggui, MAO Hui. Development of A Polymer Filter Loss Reducer for Ultra-High Temperature Water Base Drilling Fluids[J]. DRILLING FLUID & COMPLETION FLUID, 2021, 38(2): 146-151,157. doi: 10.3969/j.issn.1001-5620.2021.02.003

抗超高温水基钻井液用聚合物降滤失剂的研制

doi: 10.3969/j.issn.1001-5620.2021.02.003
基金项目: 

中国石化重点科技项目群“顺北特深层断裂破碎带区块安全成井关键技术”(PE19004);中国石化重点科技项目“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:

    高伟,副研究员,1983年生,现在主要从事超深井钻井液工艺体系设计及技术成果推广工作。电话18963857045;E-mail:maohui17@cdut.edu.cn

  • 中图分类号: TE254.4

Development of A Polymer Filter Loss Reducer for Ultra-High Temperature Water Base Drilling Fluids

  • 摘要: 以丙烯酰胺、2-丙烯酰胺-2-甲基丙磺酸和甲基丙烯酸二甲氨基乙酯为聚合反应单体,以偶氮二异丁脒盐酸盐为引发剂,通过自由基聚合反应,室内研制出了一种新型水基钻井液用抗超高温聚合物降滤失剂CLG-240。借助红外光谱分析、凝胶色谱分析和热重分析,分别表征了降滤失剂CLG-240的分子结构,确定了合成产物的相对分子质量和热稳定性。综合评价了CLG-240在钻井液中的基本性能。结果表明,降滤失剂CLG-240的数均分子量约为6.461×105,重均分子量约为7.345×105;在室温~315℃范围内该聚合物的热失重总量约为26.5%,表明其自身便具有良好的抗温、耐温特性。室内研究表明,无论是在淡水实验浆还是在盐水实验浆中,降滤失剂CLG-240均具有较好的降滤失特性,同时还具有较好的泥页岩抑制特性;其在钻井液体系中具有良好的耐超高温性能,在低密度钻井液中的抗温能力达248℃,而在高密度钻井液中的抗温能力达220℃。

     

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  • 收稿日期:  2020-11-18

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