Research of novel composite drilling grade bentonite
Shuangchun Yang, Mingzhe Guo, Yi Pan, Wei Li, Haiyan Zhang
Available Online June 2017.
- https://doi.org/10.2991/icmia-17.2017.9How to use a DOI?
- sodium-modified bentonite, drilling fluid Ca-Bent, anionic surfactant
- To improve the performance of sodium-modified bentonite in drilling fluids, the natural Ca-base bentonite (Ca-Bent) was modified by microwave wet, which regarded the anionic surfactant SDBS is compounded with inorganic sodium salt as modifier. The effects of different sodium salts, the volume of modifier, the ratio of SDBS to inorganic sodium salt, temperature and time on the modification of bentonite were studied. Moreover, the applicability of modified bentonite in drilling fluid was also evaluated. The result showed that the optimized experimental parameters are obtained as follows: SDBS to Na2CO3 ratio 1:1.5, modified volume 50ml, radiation time 3 mins, and initial temperature 50 . Under the optimization conditions, the modified bentonite has a swelling volume of 45mL/g. And the pH of 8, the plastic viscosity of 18 mPa s, yield point and plastic viscosity ratio of 0.25 and sand content less than 0.5% respectively. So, the modified bentonite is regarded as excellent drilling grade bentonite.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Shuangchun Yang AU - Mingzhe Guo AU - Yi Pan AU - Wei Li AU - Haiyan Zhang PY - 2017/06 DA - 2017/06 TI - Research of novel composite drilling grade bentonite BT - 2017 6th International Conference on Measurement, Instrumentation and Automation (ICMIA 2017) PB - Atlantis Press SN - 1951-6851 UR - https://doi.org/10.2991/icmia-17.2017.9 DO - https://doi.org/10.2991/icmia-17.2017.9 ID - Yang2017/06 ER -