石油科技论坛

石油科技论坛 ›› 2015, Vol. 34 ›› Issue (增刊): 25-27.DOI: 10.3969/j.issn.1002-302x.2015.z1.007

• 成果推介 • 上一篇    下一篇

CQ-BOL生物油润滑剂

黎金明, 陈磊, 蔺文洁, 张振活   

  1. 中国石油集团川庆钻探工程有限公司钻采工程技术研究院; 低渗透油气田勘探开发国家工程实验室
  • 收稿日期:2015-07-08 出版日期:2015-10-25 发布日期:2015-11-16
  • 基金资助:
    中国石油工程技术分公司科研项目“非常规资源钻井提速技术研究”课题“生物油在水平井钻井中的研究与应用”（编号： 2012T-0201-005）；中国石油集团川庆钻探工程有限公司项目“新型生物油润滑剂在水平井推广应用”（编号：CQ2014C-29-4-3）。

CQ-BOL Biological Oil Lubricant

Li Jinming, Chen Lei, Lin Wenjie, Zhang Zhenhuo   

  1. Drilling & Production Engineering Technology Research Institute of CNPC Chuanqing Drilling Engineering Co Ltd, Xi’an 710018, china; National Engineering Laboratory for Exploration and Development of Low Permeability Oil and Gas Fields, Xi’an 710018, China
  • Received:2015-07-08 Online:2015-10-25 Published:2015-11-16
  • Supported by:
     

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摘要： 为解决长庆地区水平井钻井过程中因钻具与井壁的扭矩大、摩阻高影响安全钻井及钻井提速的技术瓶颈,尝试了将来源广、经济实惠的废弃食用油研制成钻井液用生物油润滑剂CQ-BOL的实验研究。室内评价结果表明,该生物油润滑剂的润滑系数降低率高达82.3%,抗温达150℃,低毒性、无荧光,与目前使用的钻井液体系配伍性良好。生物油润滑剂在长庆油气水平井试验成功后规模化推广应用150余口井,现场维护加量范围为0.5%~3%,泥饼滑块摩阻系数维持在0.0262~0.0524,极压润滑系数低于0.10,始终保持钻井液具有良好的润滑减阻性能,应用效果优良。

 

关键词: 废弃食用油, 钻井液, 润滑性, 水平井, 长庆油田

Abstract: CQ-BOL biological oil lubricant is developed from waste cooking oil for drilling fluid. The biological oil lubricant can solve the technological problems of high torque and high friction existing in drilling of horizontal wells in Changqing area, which affect drilling safety and improvement of drilling rate. Indoor evaluation indicates that the reduction rate of lubricant coefficient is higher than 82.3 percent and the heat tolerance is up to 150°C. The biological oil lubricant is low in toxicity and free from fluorescence with a good compatibility with the existing drilling fluid system. It is used for more than 150 wells after it was successfully tested in horizontal wells in Changqing. Based on the onsite application, the friction coefficient of mud cake is controlled within the range of 0.0262-0.0524 and the extreme lubricant coefficient is less than 0.10 when the dosage of the biological oil lubricator is between 0.5 percent and 3 percent, providing drilling fluid with a good lubricating and friction-reducing function.

Key words: waste cooking oil, drilling fluid, lubricity, horizontal well, Changqing Oilfield

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