一种钻井液用高效抗磨润滑剂

刘云峰; 邱正松; 杨鹏; 钟汉毅; 黄维安; 赵欣

doi:10.3969/j.issn.1001-5620.2018.05.002

一种钻井液用高效抗磨润滑剂

doi: 10.3969/j.issn.1001-5620.2018.05.002

1. 中国石油大学(华东)石油工程学院, 山东青岛 266580;
2. 中国石油集团长城钻探公司工程技术研究院, 辽宁盘锦 124010

基金项目:

国家科技重大专项“深井超深井优质钻井液与固井完井技术研究”（2016ZX05020-004）；国家自然基金青年基金“基于压力控制靶向释放的微胶囊化钻井液润滑剂制备及作用机理”（51704322）；中央高校基本科研业务费专项资金项目“沥青层井壁失稳机理及防塌技术对策研究”（16CX06034A）联合资助。

详细信息

作者简介:
刘云峰,中国石油大学(华东)油气井工程在读博士研究生,主要从事钻井液与完井液相关研究工作。电话13070844389;E-mail:lyf6280168@126.com。

中图分类号: TE254.4
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出版历程
- 收稿日期: 2018-06-17
- 刊出日期: 2018-09-30

A High-Performance Drilling Fluid Anti-Wear Lubricant

1. School of Petroleum Engineering, China University of Petroleum, Qingdao, Shandong 266580;
2. Research Center of Engineering Technology, CNPC Great Wall Drilling Company of CNPC, Panjin, Liaoning 124010

摘要

摘要: 长水平井段高摩阻扭矩及深井高温高压环境，对钻井液润滑剂的润滑抗磨能力提出了更高的要求。传统钻井液用润滑剂难以满足上述技术要求。基于“固-液”协同高效润滑技术思路，优选改性植物油MVO-3、改性可膨胀石墨GIC，结合分散剂、乳化剂的优选及制备条件的优化，研制出了一种高效抗磨润滑剂SDL-1。评价结果表明，5%淡水基浆、4%盐水浆中加入0.5% SDL-1时，其润滑系数降低率分别为不小于85%、大于70%。SDL-1与现场钻井液的配伍性良好，抗温达150℃，起泡率低，且荧光级别小于5级。销-盘式摩擦磨损实验结果表明，SDL-1的抗磨耐磨效果优良，润滑持效性较好，可有效缓解或解决复杂井高摩阻扭矩技术难题，具有良好的推广应用价值。
- 钻井液 /
- 润滑剂 /
- 改性植物油 /
- 改性可膨胀石墨 /
- 抗磨耐磨
Abstract: In horizontal drilling, high friction, high torque and HTHP impose much more rigorous requirements on the lubricity and anti-wear capacity of drilling fluid lubricants. Conventional drilling fluid lubricants are not able to satisfy these requirements. A highperformance anti-wear lubricant SDL-1, has been developed based on "solid-liquid" synergism. A modifed vegetable oil MVO-3, a modifed expandable graphite GIC have been used with dispersant, emulsifer in the development of SDL-1. Laboratory evaluation experiment showed that 5% fresh water bentonite mud treated with 0.5% SDL-1 has coeffcient of friction reduced by at least 85%, and 4% brine mud treated with 0.5% SDL-1 has coeffcient of friction reduced by at least 70%. SDL-1 is well compatible with drilled fluids used in actual drilling operations. It functions normally at 150℃, has low foaming capacity. The fluorescence level of SDL-1 is less than 5. Pin-disc friction and wear test results showed that SDL-1, as a lubricant that is worth spreading, has excellent anti-wear capacity and good lubricity, and is able to effectively mitigate or resolve high friction high torque problems encountered in complex well drilling.
- Drilling fluid /
- Lubricant /
- Modifed vegetable oil /
- Modifed expandable graphite /
- Anti-wear

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