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滑溜水用减阻剂室内性能测试与现场摩阻预测

孟磊 周福建 刘晓瑞 杨钊 石华强

孟磊, 周福建, 刘晓瑞, 杨钊, 石华强. 滑溜水用减阻剂室内性能测试与现场摩阻预测[J]. 钻井液与完井液, 2017, 34(3): 105-110. doi: 10.3969/j.issn.1001-5620.2017.03.021
引用本文: 孟磊, 周福建, 刘晓瑞, 杨钊, 石华强. 滑溜水用减阻剂室内性能测试与现场摩阻预测[J]. 钻井液与完井液, 2017, 34(3): 105-110. doi: 10.3969/j.issn.1001-5620.2017.03.021
MENG Lei, ZHOU Fujian, LIU Xiaorui, YANG Zhao, SHI Huaqiang. Friction Reducers for Slick Water:Performance Evaluation and Friction Prediction[J]. DRILLING FLUID & COMPLETION FLUID, 2017, 34(3): 105-110. doi: 10.3969/j.issn.1001-5620.2017.03.021
Citation: MENG Lei, ZHOU Fujian, LIU Xiaorui, YANG Zhao, SHI Huaqiang. Friction Reducers for Slick Water:Performance Evaluation and Friction Prediction[J]. DRILLING FLUID & COMPLETION FLUID, 2017, 34(3): 105-110. doi: 10.3969/j.issn.1001-5620.2017.03.021

滑溜水用减阻剂室内性能测试与现场摩阻预测

doi: 10.3969/j.issn.1001-5620.2017.03.021
基金项目: 

中国石油天然气集团公司科学研究与技术开发项目"井筒工作液基础理论关键技术研究"(2014A-4212)和低渗透油气田勘探开发国家工程实验室开放课题"致密储层体积压裂减阻剂减阻机理研究"(ZX20150057)资助。

详细信息
    作者简介:

    孟磊,工程师,硕士,1983年生,现在从事油气田开发压裂液研究工作。电话(029)86590661/15009285802;E-mail:mlei1_cq@petrochina.com.cn。

  • 中图分类号: TE357.12

Friction Reducers for Slick Water:Performance Evaluation and Friction Prediction

  • 摘要: 经验预估滑溜水压裂现场的减阻效果具有差异较大的不足,而以往的减阻剂减阻性能评价实验多侧重于相关产品的对比优选,对其测试结果如何应用于现场实际的说明并不多见。针对以上问题,搭建了室内环路摩阻测试系统,依据Prandtl-Karman定律,通过清水湍流率定出测试用的3条直管管径分别为10.46,7.59和5.86 mm。对不同管径,在一定泵送排量梯度下对5种不同浓度的DR-800减阻剂溶液的摩阻压降进行了测定。对于0.07%和0.10%浓度的减阻剂溶液,将测试压降换算成摩阻系数,与考虑黏度项计算出的雷诺数相对应,可以很好地拟合于Virk渐近线,证明了DR-800减阻剂的优良减阻性能。在定量测试减阻性能后,采用摩阻放大法中的阻力速度法,将室内实验测得的降阻比与阻力速度进行回归得出表达式,确定出各阻力速度所对应的具体减阻率大小。运用该式,通过迭代计算,可以得到每种工况下相对确定的减阻率,比起经验预测,精度明显提高。因此,上述的室内研究方法对减阻剂的现场应用具有指导意义。

     

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出版历程
  • 收稿日期:  2017-01-23
  • 刊出日期:  2017-05-31

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