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Preparation of geopolymer-based porous filter using the quartz sand compact method

机译：基于石英砂紧凑型法制备基于地缘聚合物的多孔滤波器

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摘要

With the increasing of high temperature oil wells and steam ones, the traditional sands control filter cannot be used in those wells. Therefore, based on the conditions, using particle compact method, round quartz sands with a certain particle size and an inorganic polymer (geopolymer) material with good heat resistance is selected to prepare a heat-resistant filter with suitable pore diameter. By adjusting the contents of water-glass, water, sand and thickening agent of the geopolymer-based sand control filters, open space structure is built by low-cost geopolymer slurry and sand. When the size of quartz sand is mainly of 450-600 mu m, and the volume ratio of quartz sand to slurry is 4.3:1, the compressive strength and permeability of this sand control filter reach 10.33 MPa and 18 D, respectively. Thermal gravimetry and calcination experiments show heat-resistance up to 736 degrees C. Scanning electron microscopy shows that the sand particles are wrapped by the geopolymer slurry and that pore sizes of 170-210 mu m are present between the particles. Mercury intrusion porosimetry measurement finds the pore size distribution to be close to 150-280 mu m. Measurement of sand retaining precision indicates that the filter can intercept particles larger than 45 mu m and allow clay particles to pass through. Deformation measurements confirm no significant deformation occurred for up to 210 days and durability of the filter. In measurement of chemical resistance, the compressive strength decreases in the acid solution, and no significant changes in the compressive strength are observed in air, water, diesel oil and salt solutions. Therefore, compared to the approach of improving the heat-resistance of a resin sand control filter, the use of the geopolymer-based sand control filter should be a better choice in many cases due to its heat resistance, ease of preparation and minor deformation.
机译：随着高温油井和蒸汽井的增加，传统的沙子控制过滤器不能在那些井中使用。因此，基于使用粒子紧凑方法的条件，选择具有一定粒度和无机聚合物（地质聚合物）材料的圆形石英砂，具有良好的耐热性，以制备具有合适孔径的耐热过滤器。通过调节地质聚合物的砂控制过滤器的水玻璃，水，砂和增稠剂的含量，通过低成本的地质聚合物浆料和沙子构建开放空间结构。当石英砂尺寸主要为450-600μm，并且石英砂与浆料的体积比为4.3：1，该砂对照过滤器的抗压强度分别达到10.33MPa和18d。热重量和煅烧实验显示耐热性高达736℃。扫描电子显微镜表明砂颗粒被地质聚合物浆料包裹，并且在颗粒之间存在170-210μm的孔径。汞入侵孔隙测量测量发现孔径分布接近150-280亩。砂保留精度的测量表明过滤器可以拦截大于45μm的颗粒并允许粘土颗粒通过。变形测量确认在最多210天内没有显着变形和过滤器的耐久性。在耐化学性的测量中，酸溶液中的抗压强度降低，在空气，水，柴油和盐溶液中没有观察到抗压强度的显着变化。因此，与改善树脂砂控制过滤器的耐热性的方法相比，由于其耐热性，易于制备和轻微变形，因此使用基于地质聚合物的砂控制滤光器的使用应该是更好的选择。

著录项

  • 来源
    《Journal of porous materials》 |2020年第3期|863-874|共12页
  • 作者

    Xu Meng-xue; He Yan; Zhang Zheng-wei; Chen Xin-long; Cui Xue-min;

  • 作者单位

    Guangxi Univ Sch Chem & Chem Engn Nanning 530004 Peoples R China;

    Guangxi Univ Sch Chem & Chem Engn Nanning 530004 Peoples R China;

    Guangxi Univ Sch Chem & Chem Engn Nanning 530004 Peoples R China;

    Guangxi Univ Sch Chem & Chem Engn Nanning 530004 Peoples R China;

    Guangxi Univ Sch Chem & Chem Engn Nanning 530004 Peoples R China|Guangxi Univ Guangxi Key Lab Petrochem Resource Proc & Proc In Nanning 530004 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Particle compact method; Heat-resistance; Sand control filter; Geopolymer;

    机译：粒子紧凑方法;耐热性;砂控制过滤器;地缘聚合物;

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