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纳米复合泡沫凝胶修井液的研制与试验

罗有刚 巨亚锋 王尚卫 杨义兴 江智强 王嘉鑫

罗有刚, 巨亚锋, 王尚卫, 杨义兴, 江智强, 王嘉鑫. 纳米复合泡沫凝胶修井液的研制与试验[J]. 钻井液与完井液, 2020, 37(1): 127-132. doi: 10.3969/j.issn.1001-5620.2020.01.021
引用本文: 罗有刚, 巨亚锋, 王尚卫, 杨义兴, 江智强, 王嘉鑫. 纳米复合泡沫凝胶修井液的研制与试验[J]. 钻井液与完井液, 2020, 37(1): 127-132. doi: 10.3969/j.issn.1001-5620.2020.01.021
LUO Yougang, JU Yafeng, WANG Shangwei, YANG Yixing, JIANG Zhiqiang, WANG Jiaxin. Development and Test of a Nanometer Compound Gel Foam Workover Fluid[J]. DRILLING FLUID & COMPLETION FLUID, 2020, 37(1): 127-132. doi: 10.3969/j.issn.1001-5620.2020.01.021
Citation: LUO Yougang, JU Yafeng, WANG Shangwei, YANG Yixing, JIANG Zhiqiang, WANG Jiaxin. Development and Test of a Nanometer Compound Gel Foam Workover Fluid[J]. DRILLING FLUID & COMPLETION FLUID, 2020, 37(1): 127-132. doi: 10.3969/j.issn.1001-5620.2020.01.021

纳米复合泡沫凝胶修井液的研制与试验

doi: 10.3969/j.issn.1001-5620.2020.01.021
基金项目: 

国家科技重大专项大型油气田及煤层气开发“低渗-超低渗油藏提高储量动用关键工艺技术”(2017ZX05013);中国石油天然气股份有限公司重大攻关专项“长庆油田致密油气多层多段压裂技术攻关与现场试验”(2019CGCGZ004)联合资助。

详细信息
    作者简介:

    罗有刚,硕士,高级工程师,主要从事井下作业及配套技术研究与应用工作。电话 (029)86596570;E-mail:luoyg_cq@petrochina.com.cn

  • 中图分类号: TE358.4

Development and Test of a Nanometer Compound Gel Foam Workover Fluid

  • 摘要: 随着油田水平井开发时间的延长,受储层物性及注采驱替系统难以建立等因素的影响,水平井部分开发区域地层压力保持水平较低,地层能量不足,修井作业过程中修井液漏失严重,作业循环建立困难,导致施工作业周期长、效率低等问题。依据泡沫流体特点,研发了一种强稳定性的纳米复合泡沫凝胶修井液,与常规活性水修井液相比,其稳定性高、密度低、降漏失性强,其主要配比为:1.4%起泡剂+0.25%纳米二氧化硅+0.5%聚合物+0.05%交联剂+0.02%稳定剂。该修井液体系主要以微泡作为分散相,凝胶为骨架,依靠泡沫的强承托能力和泡沫、凝胶的双层封堵特点,达到暂堵漏失地层、降低修井液漏失的目的。室内模拟实验表明,对于模拟岩心,初期体系滤失量几乎为零,稳定后漏失速率小于10 mL/min,显示出其良好的承压能力与降漏失特性。现场实验表明,该修井液性能稳定,能有效暂堵漏失层段、降漏失效果较好。研究表明,纳米复合泡沫凝胶修井液具有良好的暂堵降漏失效果,在低压水平井修井作业具有很好的应用前景。

     

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出版历程
  • 收稿日期:  2019-10-15
  • 刊出日期:  2020-02-28

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