Abstract
It is noted that natural gas hydrate exists in geological formations and constitutes a potentially large natural gas resource for the future. To make recovery of natural gas from hydrates commercially viable, hydrates must be dissociated in-situ. At the present stage, depressurization method is expected to be a main dissociation procedure because of its high energy profit ratio and so on. Whereas, there is a worry that some interruptions for gas production i.e. plugging by hydrate formation will occur. Also there is a demand to enhance the recovery ratio of natural gas. In this study, inhibitor injection with, higher methanol concentration has been examined using laboratory made methane hydrate bearing sediment. As a result, it becomes clear that the higher concentration effectively contribute to the faster gas production rate. Whereas, dilution of methanol by pure water from hydrate dissociation were observed significantly, compared to the case of lower concentration.
Original language | English |
---|---|
Title of host publication | Proceedings of the 8th 2009 ISOPE Ocean Mining and Gas Hydrates Symposium, ISOPE OMS-2009 |
Pages | 119-123 |
Number of pages | 5 |
Publication status | Published - 2009 Dec 1 |
Externally published | Yes |
Event | 8th 2009 ISOPE Ocean Mining and Gas Hydrates Symposium, ISOPE OMS-2009 - Chennai, India Duration: 2009 Sep 20 → 2009 Sep 24 |
Other
Other | 8th 2009 ISOPE Ocean Mining and Gas Hydrates Symposium, ISOPE OMS-2009 |
---|---|
Country | India |
City | Chennai |
Period | 09/9/20 → 09/9/24 |
Keywords
- Core sample
- Dissociation
- Exploitation
- High concentration
- Hydrate
- Inhibitor
- Natural gas
ASJC Scopus subject areas
- Geotechnical Engineering and Engineering Geology
- Ocean Engineering