Volume 37 Issue 1
Feb.  2020
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LI Cheng, BAI Yang, YU Yang, XU Xiaochen, FAN Sheng, LUO Pingya. Study and Application of Drilling Fluid Technology for Stabilizing Fractured Formations in Shunbei Oilfield[J]. DRILLING FLUID & COMPLETION FLUID, 2020, 37(1): 15-22. doi: 10.3969/j.issn.1001-5620.2020.01.003
Citation: LI Cheng, BAI Yang, YU Yang, XU Xiaochen, FAN Sheng, LUO Pingya. Study and Application of Drilling Fluid Technology for Stabilizing Fractured Formations in Shunbei Oilfield[J]. DRILLING FLUID & COMPLETION FLUID, 2020, 37(1): 15-22. doi: 10.3969/j.issn.1001-5620.2020.01.003

Study and Application of Drilling Fluid Technology for Stabilizing Fractured Formations in Shunbei Oilfield

doi: 10.3969/j.issn.1001-5620.2020.01.003
  • Received Date: 2019-12-20
  • Publish Date: 2020-02-28
  • Geological study, drilling fluid measure and optimization study and field application of the research results were conducted to resolve the problems such as wellbore instability, pipe sticking and drags encountered in drilling the fractured formations in several wells in Shunbei oilfield. It was found in the studies that the lithology of the fractured formations was non-clay minerals, and invasion of the mud filtrates into the fractured formations makes the in-situ pore- and fissure-network communicated with each other and produce induced pressure inside the pores and fissures, reducing the cementation strength between bedding plains. The formations with mud filtrate invasion are thus becoming loosened, hence resulting in large-scale caving, sloughing and even pipe sticking. To drill this non-clay fractured formations with stress concentration, effective plugging of the formations with submicron-micron (0.1-100 μm) sized particles to contain the invasion of mud and/or mud filtrates into the formations is necessary, and the drilling fluid should also have good cuttings carrying capacity. Laboratory optimization of the drilling fluid previously used to drill the fourth interval of the well gave birth to a drilling fluid suitable for drilling the fractured formations. In the whole process of drilling the fourth interval, no sloughing or caving, drag and over-pull have ever happened, and the well was successfully drilled to the designed depth of 8014 m in a record-setting short time of reservoir drilling in this area. Filed application of the optimized drilling fluid on the well Shunbei-Y showed that the borehole wall stabilizing drilling fluid had excellent properties. It can be used to stabilize the fractured formation during drilling, and is worth popularizing.

     

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  • [1]
    林永学,王伟吉,金军斌.顺北油气田鹰1井超深井段钻井液关键技术[J].石油钻探技术, 2019, 47(3):113-120.

    LIN Yongxue, WANG Weiji, JIN Junbin. Key drilling fluid technology in the ultra-deep section of well Ying-1 in the Shunbei oil and gas field[J]. Petroleum Drilling Techniques, 2019, 47(3):113-120.
    [2]
    张平.顺北蓬1井φ 444.5mm长裸眼井筒强化钻井液技术[J].石油钻探技术, 2018, 46(3):27-33.

    ZHANG Ping. Wellbore enhancing technology for Φ444.5 mm openhole section in well SHBP1 by means of drilling fluid optimization[J]. Petroleum Drilling Techniques, 2018, 46(3):27-33.
    [3]
    王平全.破碎性地层概念界定及其破碎的热力学分析[J].西南石油学院学报, 1999, 21(1):13-16.

    WANG Pingquan. Definition of disintegrated rock mass and thermodynamic analysis of rock disintegration[J]. Journal of Southwest Petroleum Institute, 1999, 21(1):13-16.
    [4]
    杜金云.泥晶灰岩地层孔壁坍塌掉块现象及处理[J].探矿工程(岩土钻掘工程), 2006, 33(8):51-52. DU Jinyun. Treatment to wall of hole collapsing and breaking in mud-crystal limestone layer[J]. Exploration Engineering (Rock&Soil Drilling and Tunneling), 2006, 33(8):51-52.
    [5]
    闫娥,张艳红,黄英.顺北地区奥陶系碳酸盐岩储层发育特征[J].内江科技, 2013, 34(5):89-90.

    YAN e, ZHANG Yanhong, HUANG Ying.The characteristics of ordovician carbonate reservoir development in Shunbei area[J]. Neijiang Science&Technology, 2013, 34(5):89-90.
    [6]
    焦方正.塔里木盆地顺北特深碳酸盐岩断溶体油气藏发现意义与前景[J].石油与天然气地质, 2018, 39(2):207-216.

    JIAO Fangzheng. Significance and prospect of ultra-deep carbonate fault-Karst reservoirs in Shunbei area, Tarim Basin[J]. Oil&Gas Geology, 2018, 39(2):207-216.
    [7]
    王昱翔,顾忆,傅强,等.顺北地区中下奥陶统埋深碳酸盐岩储集体特征及成因[J].吉林大学学报(地球科学版), 2019, 49(4):932-946. WANG Yuxiang, GU Yi, FU Qiang, et al. Characteristics and genesis of deep carbonate reservoirs in Shunbei area[J]. Journal of Jilin University (Earth Science Edition), 2019, 49(4):932-946.
    [8]
    BYBEE K. Particle-size distribution improves casingwhile-drilling wellbore-strengthen-ing results[R]. SPE 1110, 2010.
    [9]
    WILSON A. Wellbore strengthening in shales with nanoparticle-based drilling fluids[R]. SPE 1115, 2015.
    [10]
    鄢捷年.钻井液工艺学(修订版)[M].东营:中国石油大学出版社, 2012:77-82. YAN Jienian. Drilling fluid technology Revised edition[M]. DongYing:China university of petroleum press.2012:77

    -82.
    [11]
    NAGEL N B, Meng F. What Does the Rock Mechanic Say:A Numerical Investigation of "Wellbore Strengthing" [C]. AADE-07-NTCE-65.
    [12]
    蒋官澄,宣扬,王金树,等.仿生固壁钻井液体系的研究与现场应用[J].钻井液与完井液, 2014, 31(3):1-5.

    JIANG Guancheng, XUAN Yang, WANG Jinshu, et al. Study and application of bionic borehole wall strengthening agent[J]. Drilling Fluid&Completion Fluid, 2014, 31(3):1-5.
    [13]
    孙金声,苏义脑,罗平亚,等.超低渗透钻井液提高地层承压能力机理研究[J].钻井液与完井液, 2005, 22(5):4-6.

    SUN Jinsheng, SU Yinao, LUO Pingya, et al. Mechanism study on ultra-low invasion drilling fluid for improvment of formation pressure-bearing ability[J]. Drilling Fluid&Completion Fluid, 2005, 22(5):4-6.
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