Effect of ester based lubricant SMJH-1 on the lubricity properties of water based drilling fluid

被引：39

作者：

Dong, Xiaoqiang ^{[1
]}

Wang, Lin ^{[1
]}

Yang, Xiaohua ^{[1
]}

Lin, Yongxue ^{[1
]}

Xue, Yuzhi ^{[1
]}

机构：

[1] SINOPEC Res Inst Petr Engn, Beijing 100101, Peoples R China

来源：

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING | 2015年 / 135卷

关键词：

Drilling fluid; Montmorillonite; Lubricant; Wettability; Roughness; Hydration; FRICTIONAL-PROPERTIES; ROUGHNESS; SURFACES; WETTABILITY; PARAMETERS; ADSORPTION; ADHESION; MODEL; WEAR;

D O I：

10.1016/j.petrol.2015.09.004

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The lubricity properties of sodium montmorillonite (Na-MMT) base mud with and without lubricant were evaluated, and the lubrication mechanisms were deduced by infrared spectrum, contact angle, surface roughness and zeta potential measurement. The hydration and the increase of electrostatic repulsion between Na-MMT particles are benefit to the decrease of friction coefficient. While in the presence of lubricant SMJH-1, a boundary lubricant film exhibits relatively weak friction force compared with the lubricant-free systems. With the increase of SMJH-1 concentration, the decline of average roughness and the formation of C=S-metal film bond between the convex-concave ring-block surfaces is contributed to the decrease of lubricity coefficient. On the basis of these lubrication effects, the reduction percentage for the before and after aging base mud with 1.0% SMJH-1 reached to 91.4% and 90.7%, respectively. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：161 / 167

页数：7

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