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压裂液存留液对致密油储层渗吸替油效果的影响

郭钢 薛小佳 李楷 范华波 刘锦 吴江

郭钢, 薛小佳, 李楷, 范华波, 刘锦, 吴江. 压裂液存留液对致密油储层渗吸替油效果的影响[J]. 钻井液与完井液, 2016, 33(6): 121-126. doi: 10.3969/j.issn.1001-5620.2016.06.022
引用本文: 郭钢, 薛小佳, 李楷, 范华波, 刘锦, 吴江. 压裂液存留液对致密油储层渗吸替油效果的影响[J]. 钻井液与完井液, 2016, 33(6): 121-126. doi: 10.3969/j.issn.1001-5620.2016.06.022
GUO Gang, XUE Xiaojia, LI Kai, FAN Huabo, LIU Jin, WU Jiang. Effect of Retained Fracturing Fluid on the Imbibition Oil Displacement Effciency of Tight Oil Reservoir[J]. DRILLING FLUID & COMPLETION FLUID, 2016, 33(6): 121-126. doi: 10.3969/j.issn.1001-5620.2016.06.022
Citation: GUO Gang, XUE Xiaojia, LI Kai, FAN Huabo, LIU Jin, WU Jiang. Effect of Retained Fracturing Fluid on the Imbibition Oil Displacement Effciency of Tight Oil Reservoir[J]. DRILLING FLUID & COMPLETION FLUID, 2016, 33(6): 121-126. doi: 10.3969/j.issn.1001-5620.2016.06.022

压裂液存留液对致密油储层渗吸替油效果的影响

doi: 10.3969/j.issn.1001-5620.2016.06.022
详细信息
    作者简介:

    郭钢,1986年生,硕士研究生,毕业于西安石油大学化学工艺专业,主要从事油气田化学领域的科研与应用工作。电话15829293383;E-mail:guog_cq@petrochina.com.cn。

  • 中图分类号: TE357.12

Effect of Retained Fracturing Fluid on the Imbibition Oil Displacement Effciency of Tight Oil Reservoir

  • 摘要: 统计长庆油田罗*区块2015年存地液量与油井一年累积产量的关系发现,存地液量越大,一年累积产量越高,与常规的返排率越高产量越高概念恰恰相反,可能与存地液的自发渗吸替油有关。核磁实验结果表明,渗吸替油不同于驱替作用,渗吸过程中小孔隙对采出程度贡献大,而驱替过程中大孔隙对采出程度贡献大,但从现场致密储层岩心孔隙度来看,储层驱替效果明显弱于渗吸效果。通过实验研究了影响自发渗吸效率因素,探索影响压裂液油水置换的关键影响因素,得出了最佳渗吸采出率及最大渗吸速度现场参数。结果表明,各参数对渗吸速度的影响顺序为:界面张力 > 渗透率 > 原油黏度 > 矿化度,岩心渗透率越大,渗吸采收率越大,但是增幅逐渐减小;原油黏度越小,渗吸采收率越大;渗吸液矿化度越大,渗吸采收率越大;当渗吸液中助排剂浓度在0.005%~5%,即界面张力在0.316~10.815 mN/m范围内时,浓度为0.5%(界面张力为0.869 mN/m)的渗吸液可以使渗吸采收率达到最大。静态渗吸结果表明:并不是界面张力越低,采收率越高,而是存在某一最佳界面张力,使地层中被绕流油的数量减少,渗吸采收率达到最高,为油田提高致密储层采收率提供实验指导。

     

  • [1] 钟家峻, 杨小军, 陈燕虎, 等. 低渗透岩心自然渗吸实验新方法[J]. 石油化工应用, 2013, 16:61-65. ZHONG Jiajun, YANG Xiaojun, CHEN Yanhu, et al.The new experimental way of spontaneous imbibition in low-permeability cores[J].Petrochemical Industry Application, 2013

    , 16:61-65.
    [2] 凡田友. 裂缝性低渗油藏渗吸规律研究[D]. 山东青岛:中国石油大学(华东), 2012. FAN Tianyou. Fractured low permeability reservoir seepage law research[D].Shandong Qingdao:China university of petroleum(east China), 2012.
    [3] SCHECHTER D S, DENQEN Z, ORR JR F M. Capillary imbibition and gravity segregation in low IFT systems[C]//SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers, 1991.
    [4] 李士奎, 刘卫东, 张海琴, 等. 低渗透油藏自发渗吸驱油实验研究[J]. 石油学报, 2007, 28(2):109-112.

    LI Shikui, LIU Weidong, ZHANG Haiqin. Low permeability reservoirs spontaneous permeability oil displacement experiment[J].Journal of oil,2007,28(2):109-112.
    [5] 秦积舜, 李爱芬. 油层物理学[M]. 中国石油大学出版社, 2001. QIN Jishun, LI Aifen. Reservoir physics[M]. China university of petroleum press, 2001.
    [6] LI K, HORNE R. An analytical scaling method for spontaneous imbibition in gas/water/rock systems[J]. SPE Journal, 2004, 9(3):322-329.
    [7] 周林波, 程林松, 曾保全. 裂缝性特低渗透储层渗吸表征模型[J]. 石油钻探技术, 2010, 38(3):83-86.

    ZHOU Linbo, CHENG Linsong, ZENG Baoquan. Permeability fractured low permeability reservoir characterization model[J].Oil drilling technology, 2010, 38(3):83-86.
    [8] HANDY L L. Determination of effective capillary pressures for porous media from imbibitions data[J]. Trans. AIME, 1960, 219:75-80.
    [9] MATTAX C C, KYTE J R. Imbibition oil recovery from fractured[J]. Society of Petroleum Engineers Journal, 1962, 6:177-184.
    [10] KAZEMI H, GILMAN J R, ELSHARKAWY A M. Analytical and numerical solution of oil recovery from fractured reservoirs with empirical transfer functions[J]. SPE reservoir engineering, 1992, 7(2):219-227.
    [11] MA S, MORROW N R, ZHANG X. Generalized scaling of spontaneous imbibition data for strongly water-wet systems[J].Journal of Petroleum Science and Engineering, 1997, 18:165-178.
    [12] ZHOU D, JIA L, Kamath J, et al. Scaling of countercurrent imbibition process in low-permeability porous media[J]. Journal of Petroleum Science and Engineering, 2002, 33(1):61-74.
    [13] LI K, HOME R. An analytical scaling method for spontaneous imbibition in gas/water/rock systems[J]. SPE Journal, 2004, 9(3):322-329.
    [14] SCHMID K S, GEIGER S. Universal scaling of spontaneous imbibition for water-wet systems[J]. Water Resources Research, 2012, 48(3):78-81.
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出版历程
  • 收稿日期:  2016-09-28
  • 刊出日期:  2016-11-30

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