Preparation and application of a glucose graft copolyammonium as shale inhibitor

Preparation and application of a glucose graft copolyammonium as shale inhibitor In the paper, a shale inhibitor, glucose graft copolyammonium (GGPA), was prepared and evaluated by bentonite linear expansion test, anti-swelling experiments, mud ball experiments. The drilling fluid properties were evaluated. Anti-swelling results shows that anti-swelling rate of 0.8% GGPA reaches up to 94.5%. Mud ball experiment and drilling fluid evaluation showed that GGPA has strong inhibitive capability to bentonite hydration swelling. GGPA can control the particle size of bentonite. The inhibition mechanism of the polyamine salt was analyzed by thermogravimetric analysis and scanning electron microscope. The results demonstrate that the GGPA can be adsorbed on clay surface through electrostatic interaction and hydrogen bonds by an anchoring effect and a hydrophobic effect. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

Preparation and application of a glucose graft copolyammonium as shale inhibitor

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Publisher
Pleiades Publishing
Copyright
Copyright © 2016 by Pleiades Publishing, Ltd.
Subject
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering
ISSN
1070-4272
eISSN
1608-3296
D.O.I.
10.1134/S107042721608022X
Publisher site
See Article on Publisher Site

Abstract

In the paper, a shale inhibitor, glucose graft copolyammonium (GGPA), was prepared and evaluated by bentonite linear expansion test, anti-swelling experiments, mud ball experiments. The drilling fluid properties were evaluated. Anti-swelling results shows that anti-swelling rate of 0.8% GGPA reaches up to 94.5%. Mud ball experiment and drilling fluid evaluation showed that GGPA has strong inhibitive capability to bentonite hydration swelling. GGPA can control the particle size of bentonite. The inhibition mechanism of the polyamine salt was analyzed by thermogravimetric analysis and scanning electron microscope. The results demonstrate that the GGPA can be adsorbed on clay surface through electrostatic interaction and hydrogen bonds by an anchoring effect and a hydrophobic effect.

Journal

Russian Journal of Applied ChemistrySpringer Journals

Published: Nov 24, 2016

References

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