Volume 35 Issue 1
Jan.  2018
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CHEN Hua. Drilling Fluid Technology for Mud Loss Control and Borehole Wall Stabilization in the Slant Section of Horizontal Wells in Sulige Gas Field[J]. DRILLING FLUID & COMPLETION FLUID, 2018, 35(1): 66-70. doi: 10.3969/j.issn.1001-5620.2018.01.013
Citation: CHEN Hua. Drilling Fluid Technology for Mud Loss Control and Borehole Wall Stabilization in the Slant Section of Horizontal Wells in Sulige Gas Field[J]. DRILLING FLUID & COMPLETION FLUID, 2018, 35(1): 66-70. doi: 10.3969/j.issn.1001-5620.2018.01.013

Drilling Fluid Technology for Mud Loss Control and Borehole Wall Stabilization in the Slant Section of Horizontal Wells in Sulige Gas Field

doi: 10.3969/j.issn.1001-5620.2018.01.013
  • Received Date: 2017-10-26
  • Publish Date: 2018-01-30
  • In horizontal drilling operations in Sulige gas field, mud losses and borehole wall collapse have occurred in the same slant open hole section. This problem is especially frequently encountered in the block Su-54, where the Liujiagou formation has low pressure bearing capacity and mud losses have occurred frequently. The Shuangshiceng formation, on the other hand, has high collapse pressure and is therefore prone to borehole collapse. Mud losses in the Liujiagou formation and borehole wall collapse in the Shuangshiceng formation are characteristic of the formations in Sulige gas field. To deal with these problems, a compound salts drilling fluid with "low clay content, strong plugging capacity and low density" was developed through laboratory experiments. This drilling fluid, with a certain content of useful solids, was treated with 2% emulsified asphalt, 3% ultra-fine CaCO3 and 1% polyglycol. When the hole angle was increased to 30°, the drilling fluid was further treated with pre-hydrated bentonite slurry to have bentonite content of not higher than 50 g/L. This helped improve the quality of mud cakes, thereby enhancing the capacity of the mud to protect the borehole wall from collapsing. The addition of bentonite slurry also increased the yield point of the mud, rendering the mud better hole cleaning capacity, and this in turn helped decrease mud weight and flow rate necessary for safe drilling operations. Field operations proved that this mud formulation has properties that are compatible with the formation characteristics of the Sulige gas field, and has good inhibitive capacity and strong mud loss control capacity. Remarkable application effects of the drilling fluid formulation have been gained in Sulige gas field.

     

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  • [1]
    张希文,李爽,张洁,等. 钻井液堵漏材料及防漏堵漏技术研究进展[J]. 钻井液与完井液,2009,26(6):74-76

    ,79. ZHANG Xiwen, LI Shuang, ZHANG Jie, et al. Research progress on lost circulation materials and lost circulation control technology[J]. Drilling Fluid & Completion Fluid, 2009,26(6):74-76,79.
    [2]
    王信,张民立,王伟忠,等.BH-NAT钻井液在苏20-17-16H井的应用[J]. 钻井液与完井液,2011,28(6):88-90

    ,97. WANG Xin, ZHANG Minli, WANG Weizhong, et al. Application of BH-NAT drilling fluid in well of Su 20-17-16H[J]. Drilling Fluid & Completion Fluid,2011, 28(6):88-90,97.
    [3]
    李希君,肖党林,王海军,等. 鄂尔多斯盆地LP14H井强抑制封堵钻井液技术应用[J]. 承德石油高等专科学校学报, 2015(4):1-4,53.

    LI Xijun, XIAO Danglin, WANG Haijun, et al,. Application of strong inhibition sealing drilling fluid technology in horizontal well LP14H of Erdos basin[J]. Journal of Chengde Petroleum College, 2015(4):1-4, 53.
    [4]
    段晓东,赵强. 苏里格气井水平井钻井液技术难点分析[J]. 西部探矿工程,2015(2):42-44. DUAN Xiaodong, ZHAO Qiang. Analysis on difficult points of horizontal wells drilling in Sulige gas field[J]. West-China Exploration Engineering,2015

    (2):42-44.
    [5]
    王仕水. 川东复杂地质条件下的防塌技术初探[J]. 天然气工业,1999, 19(6):58-59.

    WANG Shi shui. A pr e l imina ry di s cus s ion on antisloughing technique under the complex geological conditions in east sichuan[J]. Natural Gas Industry, 1999, 19(6):58-59.
    [6]
    范维庆,苏长明. 大斜度定向井、水平井泥浆技术[J]. 钻井液与完井液,1995,12(3):48-51.

    FAN Weiqing, SU Changming. Mud technology for high angle directional and horizaontal wells[J]. Drilling Fluid & Completion Fluid, 1995,12(3):48-51.
    [7]
    王健,董家林,张雄雄. 陇东区块强抑制复合盐水平井钻井液体系的探索[J]. 化工管理,2016(11):193. WANG Jian, DONG Jialin, ZHANG Xiongxiong. Study on drilling fluid system of strongly suppressed compound salt horizontal well in Longdong block[J]. Chemical Enterprise Management, 2016(11

    ):193.
    [8]
    刘榆, 宋元森, 彭云涛, 等. 新型高钙复合盐钻井液体系的研制与应用[J]. 西部探矿工程,2004(4):68-70. LIU Yu, SONG Yuansen, PENG Yuntao, et al. Development and application of a new type of high calcium compound salt drilling fluid system[J]. West-China Exploration Engineering, 2004

    (4):68-70.
    [9]
    张行云,郭磊,张兴来,等. 活度平衡高效封堵钻井液的研究及应用[J]. 钻采工艺, 2014(1):84-87. ZHANG Xingyun, GUO Lei, ZHANG Xinglai, et al. Research and application of activity balance plugguing drilling fluid[J].Drilling & Production Technology, 2014

    (1):84-87.
    [10]
    冯京海,张克勤.水基钻井液配方组合的回顾与展望[J]. 油田化学,2005(3):269-275. FENG Jinghai, ZHANG Keqing. An overview on formulation of water base drilling fluids[J]. Oilfield Chemistry, 2005

    (3):269-275.
    [11]
    吴飞,陈礼仪,周应华,等.甲酸盐无固相钻井液研究[J]. 成都理工大学学报(自然科学版),2003,30(3):322-326. WU Fei, CHEN Liyi, ZHOU Yinghua, et al. Study of the environmentally benign formate clay-free drilling fluids[J]. Journal of chengdu university of technology (natural science edition), 2003,30(3):322-326.
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