Title

Application and research of anti-sloughing lubricant for drilling fluids

作者

吕开河陈亚男张佳陈艳艳乔伟刚王劲松

Authors

LV Kaihe CHEN Yanan ZHANG Jia CHEN Yanyan QIAO Weigang WANG Jinsong

单位

中国石油大学(华东)石油工程学院, 山东青岛 266555; 中国石化集团胜利石油管理局渤海钻井公司, 山东东营 257200

Organization

College of Petroleum Engineering, China University of Petroleum, Qingdao Shandong 266555, China; Bohai Drilling Company of Shengli Petroleum Administration Bureau, Dongying Shandong 257200, China

摘要

为了解决定向井、水平井和大斜度井的井壁失稳及卡钻问题,制备出同时具有防塌剂润滑作用的钻井液用防塌润滑剂FYJH-2。实验结果及现场应用证明,防塌润滑剂FYJH-2具有很强的抑制性作用,能显著降低钻井液摩擦系数,对钻井液流变性和滤失性影响小,且无毒、易生物降解,满足环境要求,是一种适用于深井、定向井和水平井的高性能防塌润滑剂,很好地解决了井壁坍塌和钻井液润滑性问题。

Abstract

In order to solve the borehole instability and sticking problems in directional well, horizontal well and high-angle well drilling, anti-sloughing lubricant FYJH-2 for drilling fluid was prepared. Laboratory and field application results show that FYJH-2 has strong inhibition, can significantly reduce the friction coefficient of drilling fluid, and has little influence on rheology and fluid loss performance of drilling fluid. It is also non-toxic and easily biodegraded which can meet the environmental requirements. As a kind of high-performance anti-sloughing lubricant, FYJH-2 has excellently performance to solve the problem of borehole collapse and drilling fluid lubrication which is suitable for deep well, directional well and horizontal well.

关键词：

钻井液; 防塌剂; 润滑剂; 性能评价; 现场应用;

Keywords:

drilling fluid; anti-sloughing agent; lubricant; performance evaluation; field application;

基金项目

国家科技重大专项"储层保护机理及新技术研究"(2008ZX05002)和"煤层气井钻井关键技术研究"(2009ZX05060)资助。

DOI

https://doi.org/10.3969/j.issn.1008-2336.2011.03.078

钻井液用防塌润滑剂研究与应用