Volume 37 Issue 4
Aug.  2020
Turn off MathJax
Article Contents
ZOU Jian, HUANG Liping, ZHAO Peng, YANG Miao, GAO Shang. Analysis of the Content of Solid Suspended Matter in Acid Fracturing Flowback Fluids from Oil Wells in Bohai Oilfield[J]. DRILLING FLUID & COMPLETION FLUID, 2020, 37(4): 536-540. doi: 10.3969/j.issn.1001-5620.2020.04.022
Citation: ZOU Jian, HUANG Liping, ZHAO Peng, YANG Miao, GAO Shang. Analysis of the Content of Solid Suspended Matter in Acid Fracturing Flowback Fluids from Oil Wells in Bohai Oilfield[J]. DRILLING FLUID & COMPLETION FLUID, 2020, 37(4): 536-540. doi: 10.3969/j.issn.1001-5620.2020.04.022

Analysis of the Content of Solid Suspended Matter in Acid Fracturing Flowback Fluids from Oil Wells in Bohai Oilfield

doi: 10.3969/j.issn.1001-5620.2020.04.022
  • Received Date: 2020-04-20
  • Publish Date: 2020-08-28
  • Acid fracturing flowback fluids produced in Bohai oilfield, after simple treatment, were reinjected into the formation. The fracturing flowback fluids always caused the injectors to be blocked because of the existence of solid suspended matter in the fracturing flowback fluids. Laboratory experiments were conducted for the suspended solid matter on three fracturing flowback fluid samples taken from oil wells in Bohai oilfield. The effect of pH on the content of suspended solid matter in the acid fracturing flowback fluids was analyzed by changing the pH value of the fracturing fluids. The experimental results showed that the content of the suspended solid matter in fracturing flowback fluids from different wells and the content of suspended solid matter in the fracturing flowback fluid from a single well in different time of flowback are quite different. pH value plays an important role in the content of the suspended solid matter. Large amount of Fe(OH)3 precipitate is produced in acid fracturing fluid neutralized with bases. Dynamic displacing test through sandpack tube showed that de-oiled acid fracturing flowback fluid with pH 1 – 2 does not cause obvious block in the sandpack tube. It is thus understood that in field operation, the acid fracturing flowback fluid should not be neutralized with bases. If HCl is used to reduce the pH value of the fracturing flowback fluid, the content of the suspended solid matter in the fracturing fluid can be effectively decreased, hence reducing the risk of near-wellbore blocking in injectors.

     

  • loading
  • [1]
    王国弘, 王贺昌, 王吉照, 等. 蓬莱19-3油田酸化返排液难处理原因探究[J]. 工业水处理, 2017, 37(11):87-88.

    WANG Guohong, WANG Hechang, WANG Jizhao,et al. Investigation on the cause of the difficulties of return acidizing fluids treatment in Penglai 19-3 Oilield[J]. Industrial Water Treatment, 2017, 37(11):87-88.
    [2]
    黄利平, 孟向丽, 杨军伟, 等. 渤海油田酸化返排液处理技术现状及存在问题[J]. 精细与专用化学品, 2017, 25(10):36-38.

    HUANG Liping, MENG Xiangli, YANG Junwei, et al. Presen situation and existing problems of acidizing flowback liquid treatment technology in acidizing in Bohai oilfield[J].Fine and Specialty Chemicals, 2017, 25(10):36-38.
    [3]
    郭海军, 段明, 张健, 等. 酸化返排液对原油乳化液稳定性的影响[J]. 油田化学, 2008, 25(2):130-132.

    GUO Haijun, DUAN Ming, ZHANG Jian, et al. Study on stability of crude oil emulsions influenced by acidizing returns[J]. Oilfield Chemistry, 2008, 25(2):130-132.
    [4]
    项玉芝. 酸化返出液中分离出的原油脱水时电脱水器跳闸原因及对策[J]. 油田化学, 2003, 20(4):342-344.

    XIANG Yuzhi. Causes and countermeasures of tripping of electric dehydrator during dewatering of the crude oil separated from the return solution of acidification[J]. Oilfield Chemistry, 2003, 20(4):342-344.
    [5]
    李虎, 代向辉, 张延旭, 等. 油井酸化返排液对电导率的影响因素研究[J]. 化工管理, 2019, 28(10):108-110.

    LI Hu, DAI Xianghui, ZHANG Yanxu, et al. Study on the influencing factors of oil well acidizing return fluid on conductivity[J]. Chemical Enterprise Management, 2019, 28(10):108-110.
    [6]
    夏旖旎. 油井酸化返排液处理工艺技术研究[D]. 西南石油大学, 2014. XIA Yini. Study on treatment technology of acidizing flowback in oil well[D]. Southwest Petroleum University, 2014.
    [7]
    黄荣贵, 黄晓东. 海上油田油井酸化处理工艺优化研究及应用[J]. 石油化工应用, 2016, 35(1):5-10.

    HUANG Ronggui, HUANG Xiaodong. The offshore oilfield oil well acidizing process optimization research and application[J].Petrochemical Industry Application, 2016, 35(1):5-10.
    [8]
    李勇. 油水井酸化作业返排液处理技术[J]. 石油与天然气化工, 2019, 48(1):109-114.

    LI Yong. Treatment technology of flowback fluid from the acidizing in oil well and injection well[J]. Chemical Engineering of Oil & Gas, 2019, 48(1):109-114.
    [9]
    王继良, 吴威, 牟楠, 等. 海上油田酸化返排液处理工艺研究[J]. 长江大学学报(自然版),2017,14(23):87-90. WANG Jiliang, WU Wei, MOU Nan, et al. Technical study on the treatment of offshore oilfield acidification flow-back fluid[J]. Journal of Yangtze University (Natural Science Edition), 2017, 14(23):87-90.
    [10]
    王春林, 胡红福, 荣新明, 等. 油井酸化返排液物性参数分析[J]. 石油化工应用, 2019, 38(6):58-61.

    WANG Chunlin, HU Hongfu, RONG Xinming, et al. Analysis of physical parameters of acidizing return fluid in oil wells[J].Petrochemical Industry Application, 2019, 38(6):58-61.
    [11]
    潘亿勇. 海上油田非均质砂岩储层高效酸化增产增注技术研究[D]. 西南石油大学, 2017. PAN Yiyong. Study on the high efficient acidizing technology of heterogeneous sandstone resevoirs in offshore oil field[D]. Southwest Petroleum University, 2017.
    [12]
    马跃, 黄晓东, 唐晓旭, 等. 渤海油田油井酸化返排液对原油脱水的影响[J]. 油气田地面工程, 2015, 34(11):61-62.

    MA Yue, HUANG Xiaodong, TANG Xiaoxu, et al. Effects of acidizing flowback on crude oil dehydration in bohai oilfield[J].Oil-Gas Field Surface Engineering, 2015, 34(11):61-62.
    [13]
    姜光宏, 房娜, 朱宝坤, 等. 渤海油田油井酸化返排液处理新工艺[J]. 化工设计通讯, 2019, 45(7):73-74.

    JIANG Guanghong, FANG Na, ZHU Baokun, et al. New process of acid well returning and discharging treatment in Bohai oilfield[J]. Chemical Engineering Design Communications, 2019, 45(7):73-74.
    [14]
    邵秀丽, 梁陇霞, 景志明. 酸化返排残酸在线处理工艺技术研究[J]. 钻采工艺, 2017, 40(3):97-100.

    SHAO Xiuli, LIANG Longxia, JING Zhiming, et al. Online treatment of flowback acid after acidizing[J]. Drilling & Production Technology, 2017, 40(3):97-100.
    [15]
    康定宇. 处理后作业废液回注可行性评价研究[D]. 西安石油大学.2019. KANG Dingyu. Feasibility evaluation of fracturing and acidizing waste liquid re-injection after treatment[D]. Xi' an Shiyou University, 2019
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (424) PDF downloads(103) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return