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油井水泥膨胀性自修复剂机理研究

王春雨 步玉环 沈忠厚

王春雨, 步玉环, 沈忠厚. 油井水泥膨胀性自修复剂机理研究[J]. 钻井液与完井液, 2018, 35(6): 98-102,107. doi: 10.3969/j.issn.1001-5620.2018.06.018
引用本文: 王春雨, 步玉环, 沈忠厚. 油井水泥膨胀性自修复剂机理研究[J]. 钻井液与完井液, 2018, 35(6): 98-102,107. doi: 10.3969/j.issn.1001-5620.2018.06.018
WANG Chunyu, BU Yuhuan, SHEN Zhonghou. Study on the Mechanism of Expansive Self-Healing Additives for Oil Well Cement[J]. DRILLING FLUID & COMPLETION FLUID, 2018, 35(6): 98-102,107. doi: 10.3969/j.issn.1001-5620.2018.06.018
Citation: WANG Chunyu, BU Yuhuan, SHEN Zhonghou. Study on the Mechanism of Expansive Self-Healing Additives for Oil Well Cement[J]. DRILLING FLUID & COMPLETION FLUID, 2018, 35(6): 98-102,107. doi: 10.3969/j.issn.1001-5620.2018.06.018

油井水泥膨胀性自修复剂机理研究

doi: 10.3969/j.issn.1001-5620.2018.06.018
基金项目: 

国家重点基础研究发展规划“973”项目(2015CB251202);山东省高等学校教学改革立项项目(B2016Z014);长江学者发展团队(IRT_14R58)

详细信息
    作者简介:

    王春雨,1989年生,中国石油大学(华东)在读博士生,现在从事油气井固井研究工作。电话18660263609;E-mail:wangchunyu198902@126.com

    通讯作者:

    步玉环,E-mail:buyuhuan@163.com

  • 中图分类号: TE256.6

Study on the Mechanism of Expansive Self-Healing Additives for Oil Well Cement

  • 摘要: 固井水泥石微裂缝严重影响层间封隔完整性、缩短油气井寿命,水泥石微裂缝自修复技术是解决这一问题的有效途径。然而,目前对于膨胀性自修复剂机理研究较少,缺乏理论支撑。提出利用填充系数评价水泥石微裂缝自修复效果,建立了膨胀性自修复剂封堵水泥石微裂缝的数学模型,明确了影响水泥石微裂缝自修复效果的主要影响因素。此外,根据巴西劈裂试验,设计了一种简单的、能够定量模拟水泥石微裂缝的方法。利用水泥石微裂缝自封堵评价仪,对自选择修复材料进行自修复评价实验,验证了自修复效果与自修复剂吸液倍率、加量、微裂缝宽度的关系。结果显示,自选择修复材料的遇水自修复临界填充系数为0.473,最大可封堵234 μm微裂缝;遇油自修复临界填充系数为0.490,最大可封堵150μm微裂缝。研究结果为膨胀性自修复剂实现固井水泥石微裂缝自修复奠定了理论基础。

     

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    [9] 步玉环, 王春雨, 柳华杰, 等. 适于油井水泥的核壳结构吸油树脂微球及制备方法和应用:CN, 201410729741.3[P]. 2017-04-21. BU Yuhuan, WANG Chunyu, LIU Huajie, et al. Coreshell structure oil-absorptive resin microsphere suitable for oil well cement as well as preparation method and application of core-shell structure oil-absorptive resin microsphere:CN, 201410729741.3[P]. 2017-04-21.
    [10] Standard Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens[S].ASTM C496-496 M-11,2017.
    [11] 步玉环,于利国,王春雨,等. 水泥石自愈合性能评价方法[J]. 实验室研究与探索,2015,34(7):17-21.

    BU Yuhuan, YU Liguo, WANG Chunyu, et al. Evaluation Method of the Self-healing Property of Cement[J]. Research and Exploration in Laboratory, 2015, 34(7):17-21.
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  • 被引次数: 0
出版历程
  • 收稿日期:  2018-08-05
  • 刊出日期:  2018-11-30

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