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清洁润滑快钻剂CLSD的研制及性能评价

杨倩云,  王宝田,  蔡勇,  李秀灵,  袁丽

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文章导航 > 钻井液与完井液  > 2017 >  34(2): 33-38
杨倩云, 王宝田, 蔡勇, 李秀灵, 袁丽. 清洁润滑快钻剂CLSD的研制及性能评价[J]. 钻井液与完井液, 2017, 34(2): 33-38. doi: 10.3969/j.issn.1001-5620.2017.02.006
引用本文: 杨倩云, 王宝田, 蔡勇, 李秀灵, 袁丽. 清洁润滑快钻剂CLSD的研制及性能评价[J]. 钻井液与完井液, 2017, 34(2): 33-38. doi: 10.3969/j.issn.1001-5620.2017.02.006
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YANG Qianyun, WANG Baotian, CAI Yong, LI Xiuling, YUAN Li. Development and Evaluation of Drilling Detergent Lubricant CLSD as Fast-drilling Agent[J]. DRILLING FLUID & COMPLETION FLUID, 2017, 34(2): 33-38. doi: 10.3969/j.issn.1001-5620.2017.02.006
Citation: YANG Qianyun, WANG Baotian, CAI Yong, LI Xiuling, YUAN Li. Development and Evaluation of Drilling Detergent Lubricant CLSD as Fast-drilling Agent[J]. DRILLING FLUID & COMPLETION FLUID, 2017, 34(2): 33-38. doi: 10.3969/j.issn.1001-5620.2017.02.006
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清洁润滑快钻剂CLSD的研制及性能评价

doi: 10.3969/j.issn.1001-5620.2017.02.006

  • 中石化胜利石油工程有限公司钻井工程技术公司, 山东东营 257064

基金项目: 

中石化基金项目"高密度钻井液清洁快钻技术研究及应用"（JP12011）。

详细信息
    作者简介:

    杨倩云,高级工程师,1978年生,主要从事钻井液技术研究。电话(0546)8721047;E-mail:yangqianyun.slyt@sinopec.com。

  • 中图分类号: TE254.4

Development and Evaluation of Drilling Detergent Lubricant CLSD as Fast-drilling Agent

  • Branch of Drilling Engineering Technology, Sinopec Shengli Petroleum Engineering Company Ltd., Dongying, Shandong 257064

    摘要
  • 摘要: 清洁润滑快钻剂CLSD以废弃油脂为原料，在确定其合成工艺和技术参数基础上而制得，室内性能评价结果表明其具有优良的综合性能：配伍性良好，基本不影响流变性，能适当降低中压滤失量；接触角为170.5°，亲油疏水性强，清洁润湿性好，容易吸附在金属表面铺展形成油膜；0.4%浓度时表面张力降低率为68.69%，使钻井液更容易渗入钻头冲击井底岩石时所形成的微裂缝中，降低储层水锁伤害；极压润滑系数降低率为91.83%，泥饼黏附系数降低率为62.67%，且随着温度的升高，润滑性增强，能降低扭矩及钻井液摩擦力；抑制性强，抗饱和NaCl；抗温达160℃，而且高温热滚后基本不起泡，随着井深增加钻井液性能稳定，适用于深井或超深井；能减小压持效应，提高钻速，室内钻井模拟其机械钻速提高率可达35.2%。

     

    Abstract: CLSD is a drilling detergent lubricant made from waste grease under predetermined synthesis process and technical parameters. Laboratory evaluation of CLSD showed that it had good compatibility with other additives, and rendered no bad effect on mud rheology. It moderately reduced API filter loss of the mud. Contact angle of 170.5℃ meant that CLSD was lipophilic. It had good cleaning and wetting performance, and was able to form oil films on the surface of metals. The surface tension of a 0.4% water solution of CLSD was 68.69% lower than that of fresh water, making it easier for the CLSD to go into the fractures formed by brill bit impacting the hole bottom, thus mitigating reservoir damage by water blocking. Using CLSD, the extreme pressure friction coefficient of a drilling fluid was reduced by 91.83%, and mud cake adhesion coefficient reduced by 62.67%. As temperature went up, the lubricity of the drilling fluid treated with CLSD was enhanced, thereby reducing the drilling torque and the friction coefficient of drilling fluids. CLSD had strong inhibitive capacity. It can be used in saturated drilling fluids. It functioned normally at 160℃ or higher. After hot rolling, drilling fluids treated with CLSD did not foam on the whole. The CLSD treated drilling fluids is suitable for use in deep wells and ultra-deep wells, because with an increase in well depth, the property of the drilling fluid becomes more stable. CLSD helped in reducing chip hold-down effect, thereby increasing ROP; in a laboratory simulation, the ROP was increased by 35.2%.

     

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出版历程
  • 收稿日期:  2016-12-01
  • 刊出日期:  2017-03-31

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