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油井水泥浆高温悬浮稳定剂的开发及性能研究

刘湘华

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文章导航 > 钻井液与完井液  > 2019 >  36(5): 605-609
刘湘华. 油井水泥浆高温悬浮稳定剂的开发及性能研究[J]. 钻井液与完井液, 2019, 36(5): 605-609. doi: 10.3969/j.issn.1001-5620.2019.05.014
引用本文: 刘湘华. 油井水泥浆高温悬浮稳定剂的开发及性能研究[J]. 钻井液与完井液, 2019, 36(5): 605-609. doi: 10.3969/j.issn.1001-5620.2019.05.014
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LIU Xianghua. Development of and Study on a High Temperature Suspension Stabilizer for Oil Well Cement Slurries[J]. DRILLING FLUID & COMPLETION FLUID, 2019, 36(5): 605-609. doi: 10.3969/j.issn.1001-5620.2019.05.014
Citation: LIU Xianghua. Development of and Study on a High Temperature Suspension Stabilizer for Oil Well Cement Slurries[J]. DRILLING FLUID & COMPLETION FLUID, 2019, 36(5): 605-609. doi: 10.3969/j.issn.1001-5620.2019.05.014
shu

油井水泥浆高温悬浮稳定剂的开发及性能研究

doi: 10.3969/j.issn.1001-5620.2019.05.014

  • 中石化胜利石油工程有限公司塔里木分公司, 新疆库尔勒 841000

详细信息
    作者简介:

    刘湘华,高级工程师,硕士,毕业于中国石油大学(华东)石油工程专业,现在主要从事钻井技术管理工作;电话18654684721;E-mail:18654684721@163.com

  • 中图分类号: TE256.6

Development of and Study on a High Temperature Suspension Stabilizer for Oil Well Cement Slurries

  • Tarim Branch of Sinopec Shengli Petroleum Engineering Ltd., Korla, Xinjiang 841000

    摘要
  • 摘要: 针对油井水泥浆高温沉降失稳问题，引入疏水单体N-十四烷基丙烯酰胺，制备了一种高温悬浮稳定剂，并测试了稳定剂的热增黏性能，分析了热增黏机理。综合评价了高温悬浮稳定剂对油井水泥浆沉降稳定性、流变性能、稠化性能和水泥石抗压强度的影响。结果表明，高温悬浮稳定剂通过分子间疏水缔合作用增加高温水泥浆的黏度；稳定剂的适用温度为60~150℃，最佳加量为0.15%；控制水泥石的密度差在0.025 g/cm3以内，具有非常良好的防沉降性能；稳定剂保证水泥浆的稠度系数变化很小，在4.441~5.760 Pa·sn范围内，保证水泥浆浆体稠度稳定；稳定剂对水泥石强度影响较小，水泥石强度满足固井施工要求。

     

    Abstract: A high temperature suspension stabilizer has been developed to deal with sedimentation of oil well cement slurries at elevated temperatures. The viscosifying property of the suspension stabilizer at high temperatures was tested and the mechanisms of viscosifying at high temperatures analyzed. The effects of the high temperature suspension stabilizer on several properties of cement slurries, such as sedimentation stability, rheology, thickening curve and compressive strength of the set cement, were evaluated through laboratory experiment. It was found that the high temperature suspension stabilizer increases the viscosity of the cement slurry at elevated temperatures through hydrophobic association between molecules. The density difference of the set cement can be controlled within±0.025 g/cm3 by the addition of the stabilizer, indicating that the stabilizer has excellent sedimentation prevention property. The consistency coefficient of the cement slurry was maintained in a narrow range by the stabilizer, between 4.441 Pa·sn and 5.760 Pa·sn, and this made the consistency of the slurry stable. The strength of the set cement, which was almost not affected by the use of the suspension stabilizer, satisfied the needs of well cementing job.

     

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    • 参考文献(12)
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出版历程
  • 收稿日期:  2019-06-21
  • 刊出日期:  2019-10-30

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