硼标记压裂裂缝示踪剂的制备及性能

硅酸盐通报 ›› 2021, Vol. 40 ›› Issue (3): 1016-1021.

硼标记压裂裂缝示踪剂的制备及性能

李向辉¹, 遆永周¹, 李灿然¹, 张锋², 陈前², 王晓慧¹, 苑素华¹, 朱玉坤³

1.河南省科学院同位素研究所有限责任公司,郑州市同位素示踪与探测重点实验室,郑州 450015;
2.中国石油大学(华东)地球物理与信息学院,青岛 266580;
3.河南省同新科技有限责任公司,郑州 450015

收稿日期:2020-10-19 修回日期:2020-12-03 出版日期:2021-03-15 发布日期:2021-04-13
通讯作者: 李灿然,助理研究员。E-mail:lcanran@163.com
作者简介:李向辉(1979—),男,博士,高工。主要从事无机材料合成及同位素示踪应用研究。E-mail:lixianghuiboy@163.com
基金资助:
河南省科学院科研开发专项基本科研业务费项目(200604032,200604116);国家自然科学基金(41574119)

Preparation and Performance of Boron-Labeled Fracturing Fracture Tracer

LI Xianghui¹, TI Yongzhou¹, LI Canran¹, ZHANG Feng², CHEN Qian², WANG Xiaohui¹, YUAN Suhua¹, ZHU Yukun³

1. Zhengzhou Key Laboratory of Isotope Tracing and Detecting, Isotope Research Institute of Henan Academy of Sciences Co., Ltd, Zhengzhou 450015, China;
2. College of Geophysics and Information Engineering, China University of Petroleum, Qingdao 266580, China;
3. Henan Tongxin Technology Co., Ltd., Zhengzhou 450015, China

Received:2020-10-19 Revised:2020-12-03 Online:2021-03-15 Published:2021-04-13

摘要/Abstract

摘要： 硼具有高的热中子捕获截面,可用于油气井下压裂裂缝的探测。通过热重分析-差热分析法(TG-DTA)、X射线衍射分析(XRD)、能谱分析(EDS)、扫描电镜(SEM)和电感耦合原子发射光谱(ICP-AES)测试方法,研究了碳化硼(B₄C)不同外加量(质量分数分别为1%、5%和10%)对压裂示踪支撑剂结构和性能的影响。结果表明,当B₄C外加量1%时,主晶相为刚玉相,69 MPa闭合压力下支撑剂的破碎率和体积密度分别为5.4%和1.66 g·cm^-3。B₄C外加量为5%和10%时,B₄C氧化生成的氧化硼与氧化铝反应生成硼酸铝晶须,刚玉相减少。B₄C氧化生成的二氧化碳和氧化硼的挥发,形成支撑剂的多孔结构,导致支撑剂破碎率升高和体密度下降。

关键词: 碳化硼, 压裂支撑剂, 压裂裂缝, 同位素标记, 破碎率

Abstract: Boron with high thermal neutron capture cross section can be used to detect fracturing fractures in oil and gas downhole. The effects of different amounts of B₄C (mass fraction of 1%, 5%, and 10%, respectively) on the structure and performance of the fracturing proppant were investigated by thermogravimetric-differential thermal analysis (TG-DTA), X-ray diffraction analysis (XRD), energy spectrum analysis (EDS), scanning electron microscope (SEM) and inductively coupled atomic emission spectroscopy (ICP-AES). The results show that when the adding amount of B₄C is 1%, its main phase is corundum. The breakage ratio and volume density under the 69 MPa pressure are 5.4% and 1.66 g·cm^-3, respectively. When the B₄C adding amount of is at 5% or 10%, the boron oxide generated by oxidation of B₄C reacts with alumina to form aluminum borate whiskers, and the corundum phase is reduced. Carbon dioxide and boron oxide from the oxidation of B₄C evaporated, form a porous structure of the proppant, and result in an increase of the breakage ratio and a decrease in bulk density.

Key words: B₄C, fracturing proppant, fracturing fracture, isotope labeling, breakage ratio

中图分类号:

TQ174.75

李向辉, 遆永周, 李灿然, 张锋, 陈前, 王晓慧, 苑素华, 朱玉坤. 硼标记压裂裂缝示踪剂的制备及性能[J]. 硅酸盐通报, 2021, 40(3): 1016-1021.

LI Xianghui, TI Yongzhou, LI Canran, ZHANG Feng, CHEN Qian, WANG Xiaohui, YUAN Suhua, ZHU Yukun. Preparation and Performance of Boron-Labeled Fracturing Fracture Tracer[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(3): 1016-1021.

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