THE INFLUENCE OF INTERFACIAL POTENTIAL ON FRICTION AND WEAR IN AN AQUEOUS DRILLING MUD

被引：19

作者：

BRANDON, NP ^{[1
]}

WOOD, RJK ^{[1
]}

机构：

[1] BP RES CTR, SUNBURY TW16 7LN, MIDDX, ENGLAND

来源：

WEAR | 1993年 / 170卷 / 01期

关键词：

D O I：

10.1016/0043-1648(93)90348-P

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Aqueous drilling muds, whilst recognised as environmentally benign, give higher coefficients of friction than their oil-based counterparts, leading to increased torque and drag on the drillstring. This work concerns a novel approach to improving the lubricity of aqueous drilling muds, namely by controlling the electrochemical potential at the drillstring-drilling mud interface. A Cameron-Plint high-frequency friction machine, modified to accept an electrochemical cell, has been used to measure friction and wear in aqueous drilling muds for mild steel pins rubbing on mild steel or sandstone wear plates. It was found that the coefficient of friction at metal-rock contacts decreased on application of a cathodic potential, whilst friction at metal-metal contacts decreased when an anodic potential was applied.

引用

页码：33 / 38

页数：6