Volume 36 Issue 1
Feb.  2019
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WANG Lan, WU Qi, JIANG Guancheng. Modified Soybean Lecithin Used as Water Base Drilling Fluid Lubricant[J]. DRILLING FLUID & COMPLETION FLUID, 2019, 36(1): 10-14. doi: 10.3969/j.issn.1001-5620.2019.01.002
Citation: WANG Lan, WU Qi, JIANG Guancheng. Modified Soybean Lecithin Used as Water Base Drilling Fluid Lubricant[J]. DRILLING FLUID & COMPLETION FLUID, 2019, 36(1): 10-14. doi: 10.3969/j.issn.1001-5620.2019.01.002

Modified Soybean Lecithin Used as Water Base Drilling Fluid Lubricant

doi: 10.3969/j.issn.1001-5620.2019.01.002
  • Received Date: 2018-12-05
  • Publish Date: 2019-02-28
  • Using lactic acid and hydrogen peroxide, the natural soybean lecithin can be modified through hydroxylation. The modified soybean lecithin is non-toxic, with EC50 greater than 30,000 mg/L. The modified soybean lecithin has good lubricity in fresh water, fresh water bentonite slurry and water base drilling fluids. Fresh water containing modified soybean lecithin has extreme pressure film whose strength is twice that of the extreme pressure film formed from PF-Lube in fresh water or CX-300H in fresh water. In 30 min four-ball friction test, the friction coefficient of a 1% modified soybean lecithin solution is less than 0.1, better as a lubricant than the DFL lubricant imported. The modified soybean lecithin was used at a concentration of 1% to treat 4% bentonite fresh water slurries before and after aging at 120 ℃,reducing the extreme pressure friction coefficient of the bentonite slurries by 90%, better than DFL and PF-Lube as extreme pressure lubricant. An environmentally friendly water base drilling fluid of 2.0 g/cm3 treated with 1% modified soybean lecithin and aged at 120 ℃ had lower viscosity,the HTHP filtration rate was reduced by about 50%, and the sticking coefficient and extreme pressure friction coefficient were all reduced by at least 60%. SEM was used to analyze the extreme pressure scratch, and XPS element analysis was conducted to reveal the lubricating mechanisms of the modified soybean lecithin. In general, the modified soybean lecithin is non-toxic and has good extreme pressure lubricity, revealing itself as a good lubricant in extended reach horizontal drilling.

     

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  • [1]
    刘洪林, 王红岩, 刘人和, 等.非常规油气资源发展现状及关键问题[J]. 天然气工业, 2009, 29(9):113-116.

    LIU Honglin,WANG Hongyan,LIU Renhe, et al. The present status and essential points of developing the unconventional hydrocarbon resources in China[J]. Natural Gas Industry,2009,29(9):113-116.
    [2]
    董晓强,王琳,杨小华. 水基钻井液润滑剂研究进展[J]. 中外能源,2012,17(10):28-33.

    DONG Xiaoqiang,WANG Lin,YANG Xiaohua. Advances in the lubricant of water based drilling fluid[J]. Sino-Global Energy,2012,17(10):28-33.
    [3]
    邓小刚, 李一平, 胡正文, 等. 环保型水基钻井液润滑剂的研制与评价[J]. 油田化学, 2017, 34(2):201-205.

    DENG Xiaogang,LI Yiping,HU Zhengwen,et al. Preparation and evaluation of environment-friendly lubricant used for water-based drilling fluid[J]. Oilfield Chemistry,2017,34(2):201-205.
    [4]
    胡进军,孙强,夏小春,等. 环境友好型水基钻井液GREEN-DRILL的研制与应用[J]. 石油钻探技术, 2014,42(2):75-79.

    HU Jinjun,SUN Qiang,XIA Xiaochun,et al. Development and application of environment-friendly drilling fluid GREEN-DRILL[J].Petroleum Drilling Techniques,2014,42(2):75-79.
    [5]
    屈沅治,黄宏军,汪波,等. 新型水基钻井液用极压抗磨润滑剂的研制[J]. 钻井液与完井液,2018,35(1):34-37.

    QU Yuanzhi,HUANG Hongjun,WANG Bo,et al. Development of extreme pressure anti-wear lubricant MPA for water base drilling fluids[J]. Drilling Fluid & Completion Fluid,2018,35(1):34-37.
    [6]
    蔡卓,程龙军,江彩英,等. 大豆卵磷脂的研究现状[J]. 化工技术与开发,2008,37(9):34-37.

    CAI Zhuo,CHENG Longjun,JIANG Caiying,et al. Recent development in soybean lecithin[J].Technology & Development of Chemical Industry,2008,37(9):34-37.
    [7]
    宋国安. 大豆卵磷脂的开发及应用前景[J]. 中国油脂, 2001,26(4):33-35.

    SONG Guoan. Future of development and application of soybean lecithin[J].China Oils and Fats,2001,26(4):33-35.
    [8]
    刘泊天,高鸿,周晖,等. 四球试验机在液体润滑剂评价中的应用[J]. 理化检验-物理分册,2015,51(11):795-798.

    LIU Botian,GAO Hong,ZHOU Hui,et al. Applications of four-ball testers in evaluation of liquid lubricants[J]. Physical Testing and Chemical Analysis Part A:Physical Testing,2015,51(11):795-798.
    [9]
    吴燕霞,李维民,王晓波. 磷系极压抗磨剂在酯类油中的摩擦学性能[J]. 石油学报(石油加工),2015,31(5):1122-1128. WU Yanxia,LI Weimin,WANG Xiaobo. Tribological behaviors of p-extreme pressure and anti-wear additives in ester base oil[J]. Acta Petrolei Sinica (Petroleum Processing Section),2015,31(5):1122-1128.
    [10]
    陈忠祥. 菜籽油基硫磷极压润滑剂的合成研究[J]. 表面技术,2005,34(6):51-53.

    CHEN Zhongxiang. Study on synthesis of sulfuricphosphorous-modified lubricator made of rapeseed oil base with extreme pressure[J].Surface Technology, 2005,34(6):51-53.
    [11]
    杨宏伟,杨士亮,孙世安,等. 极压抗磨剂的发展现状及作用机理研究[J]. 当代化工,2012(9):961-963. YANG Hongwei,YANG Shiliang,SUN Shian,et al. Research on developing status and mechanism of extremepressure and anti-wear additives[J].Contemporary Chemical Industry,2012

    (9):961-963.
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