Composite inhibitor for gas hydrate in deepwater drilling

DOI

10.2991/icaemt-15.2015.32How to use a DOI?

Keywords

Natural gas hydrate, inhibitor, composite inhibitor, preventing hydrate formation

Abstract

In recent years, the research about natural gas hydrate inhibitors has transformed from thermodynamics inhibitors to kinetic inhibitors and anti-agglomerant inhibitors in the deepwater drilling. However, once the malfunction occurred in the injection system, kinetic inhibitors is powerless facing the hydrate plug resulted from irregular shut-in gas wells or lack of inhibitors. Meanwhile, surfactants would not be economically viable as a single inhibitor. Considering the single inhibitors have some limitations in the practical application, kinetic inhibitors, anti-agglomerant inhibitors, thermodynamic inhibitors and other auxiliary agent are used in combination to prevent hydrate plug. This article is a comprehensive study of the advantages and disadvantages of various inhibitors, which develops a complex scheme, reduces the amount of compsite inhibitors, increasing the supercooling degree, and will be more suitable for industrial application.

Copyright

© 2015, 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/).

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TY  - CONF
AU  - Xiaolan Liu
AU  - Xianghua Liu
AU  - Wenqian Wei
PY  - 2015/08
DA  - 2015/08
TI  - Composite inhibitor for gas hydrate in deepwater drilling
BT  - Proceedings of the 2015 International Conference on Advanced Engineering Materials and Technology
PB  - Atlantis Press
SP  - 166
EP  - 169
SN  - 2352-5401
UR  - https://doi.org/10.2991/icaemt-15.2015.32
DO  - 10.2991/icaemt-15.2015.32
ID  - Liu2015/08
ER  -