1 College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China 2 Zhengzhou Runbao Refractory Co., Ltd., Zhengzhou 452300, China
Abstract: Ceramic proppant for hydraulic fracturing in oil and gas exploitation was prepared from high voltage electric porcelain waste by air flow superfine grinding, disc granulation and sintering at 1 180—1 260 ℃. The phase composition and micro morphology of ceramic proppant samples sintered at different temperatures were analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The density, crushing rate and acid solubility of samples were tested by the methods of petroleum and natural gas industry standards, and the effects of sintering temperature on microstructure and properties of samples were studied. The results show that the main phases of proppant are mullite and corundum. With the increase of sintering temperature, the acicular mullite grains grow up gradually and form a grid structure. The liquid phase is uniformly dispersed and wrapped in the grains, which improves the densification of the sample. However, if the sintering temperature is too high, the degree of secondary mullite in the sample will become higher, and some mullite grains will grow abnormally, resulting in high porosity of proppant and affecting the strength of the sample. The sample shows the highest apparent density and the lowest crushing rate at 1 220 ℃, while the crushing rate is only 6.1% under 69 MPa closing pressure and the apparent density is 2.74 g/cm3, which meets the standard requirements of low density ceramic proppant in SY/T5108-2014.
作者简介: 付鹏程,2018年9月至今就读于西安建筑科技大学材料科学与工程学院,攻读材料学硕士学位,主要从事无机非金属材料、高温陶瓷材料的研究。 肖国庆,西安建筑科技大学材料科学与工程学院教授,博士研究生导师,2005年获西安交通大学材料科学与工程专业博士学位,2005年晋升教授,2008.10—2009.10英国谢菲尔德大学访问学者。主要从事结构功能一体化陶瓷基复合材料、低碳耐火材料研究,以第一作者及合作者在国内外期刊发表学术论文100多篇。目前主持国家级科研项目2项、省部级科研项目5项,受邀担任Composites A、Ceramics International、International Journal of the Applied Ceramic Technology等10余种国际期刊审稿人。
引用本文:
付鹏程, 肖国庆, 丁冬海, 方宇飞, 种小川, 朱现峰. 高压电瓷废料制备低密度高强度陶粒支撑剂及其性能[J]. 材料导报, 2022, 36(4): 21010085-5.
FU Pengcheng, XIAO Guoqing, DING Donghai, FANG Yufei, CHONG Xiaochuan, ZHU Xianfeng. Preparation and Properties of Low Density and High Strength Ceramic Proppant from High Voltage Electric Porcelain Waste. Materials Reports, 2022, 36(4): 21010085-5.
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2022, Vol. 36 
