 |
| Titel |
Quantifying particle migration during gas production from gas hydrate deposits |
| VerfasserIn |
Joo Yong Lee, Gyeol Han, Tae-Hyuk Kwon |
| Konferenz |
EGU General Assembly 2017
|
| Medientyp |
Artikel
|
| Sprache |
en
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250140848
|
| Publikation (Nr.) |
 EGU/EGU2017-4295.pdf |
|
|
|
|
|
| Zusammenfassung |
| Hydrate reservoir is mostly unconsolidated unlike conventional gas reservoirs. Consequently, the sand control is one of the major issues for managing safe and efficient gas production from unconsolidated hydrate-bearing deposits. Most of field test production from gas hydrate deposits experienced severe or moderate sand production during the operations. Sand production causes down-hole cavities and malfunction of downhole equipment.
An experimental system was designed to study sanding during gas production from gas hydrate deposits. The system can monitor the particle migration with X-ray CT imaging while maintaining high pressure and low temperature to form hydrates in sediments. Particle migration during gas production from gas hydrate-bearing sands with about 10% of fine contents was monitored in this study. The detection of fine migration from X-ray images is based on the differences in densities of different phases. While gas production from hydrate-bearing deposits, not only particles but also water and gas move together. Consequently, detecting particle migration in multiphase flow system is a very complex problem. A technique to detect particle movements in multiphase system has been developed from the experimental results. A model to quantify the fine contents also has been developed and successfully modelled the experimental results. |
|
|
|
|
|
|