Preparation and Applications of an Advanced Lubricant for Brine Water Based Drilling Fluids

DOI

10.2991/emcs-17.2017.360How to use a DOI?

Keywords

Brine water based drilling fluids; Lubricants; Animal and vegetable oil; Salt tolerance; Temperature resistance

Abstract

Brine water based drilling fluids have advantages on protecting reservoir and stabilizing well hole, meanwhile, it also have some defects such as low lubricity and strong corrosivity, especially the low lubricity have already become an important problem demanding prompt solution. Focusing on the problem, a new lubricant named BLC that suit for brine water based drilling fluids were prepared. As the basic material of BLC, a recycled animal and vegetable oil REO was made in to a special intermediate product SPP-REO that have good lubricity, heat resistance and salt resistance by using three steps of chemical modifications. Salt tolerance lubricants BLC-1(suit for summer) and BLC-2(suit for winter) were obtained by mixture of SPP-REO and other auxiliary materials. With 0.6% BLC-1, the Kf (reduction rate of sticking coefficient) of a special silica brine drilling fluid of Gang 308-2 Well reached more than 50%; with 0.5% BLC-1, the Kf of polymer drilling fluid of Zhong 3-56 Well reached 64%; with 0.5% BLC-2, the Kf of organic salt drilling fluid of Baiku-H1 Well reached more than 30%; With 0.6% BLC-2, the Kf of silica drilling fluid of Fang 15-16 Well reached 59%; with 0.5% BLC-2, the Kf of polymer drilling fluid of Xi 48-21 Well reached 59%. BLC lubricant obtained good performances when it was used by CNPC Bohai Drilling Engineering Ltd. in Dagang Oilfield.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Tao Zhang
AU  - Baolin Cui
AU  - Wei Xue
AU  - Guanghuan Li
AU  - Jun Su
AU  - Zhengqiang Xiong
AU  - Fengbao Liu
AU  - Fengshan Zhou
PY  - 2017/03
DA  - 2017/03
TI  - Preparation and Applications of an Advanced Lubricant for Brine Water Based Drilling Fluids
BT  - Proceedings of the 2017 7th International Conference on Education, Management, Computer and Society (EMCS 2017)
PB  - Atlantis Press
SP  - 1898
EP  - 1908
SN  - 2352-538X
UR  - https://doi.org/10.2991/emcs-17.2017.360
DO  - 10.2991/emcs-17.2017.360
ID  - Zhang2017/03
ER  -