Video: Hydrocyclone Micrometer Sized Separation Technology for Exploitation of Natural Gas Hydrate
- Jiwei Wu (East China University of Science and Technology, Harvard University) | Haitao Lin (East China University of Science and Technology) | Yuan Huang (East China University of Science and Technology) | Hualin Wang (East China University of Science and Technology) | Shouwei Zhou (China National Offshore Oil Corporation) | Qiang Fu (China National Offshore Oil Corporation)
- Document ID
- Offshore Technology Conference
- Publication Date
- Document Type
- 2020. Copyright is retained by the author. This document is distributed by OTC with the permission of the author. Contact the author for permission to use material from this document.
- 4.1.2 Separation and Treating, 2 Well completion, 4 Facilities Design, Construction and Operation, 2.4 Sand Control, 2.2 Installation and Completion Operations, 4.3.1 Hydrates, 4.6 Natural Gas, 4.1 Processing Systems and Design
- Breaking-consolidation, Sand control, Hydrocyclone, Three-phase separation, Natural gas hydrate
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Natural gas hydrate is a key future clean energy resource, and sand control is crucial in natural gas hydrate production. However, the sand control is still inefficient, which impedes industrialized development of natural gas hydrate. From production test carried out in the South China Sea, we found the separation of micrometer-sized sand from the fluid is the main challenge in sand control. Based on high-speed motion in our 3D rotating turbulent flow field of hydrocyclone, our study presents a new technology to realize efficient separation of micrometer-sized sand and breaking consolidation between hydrate and sand. As results of hydrocyclone separation experiments, we have the high separation efficiency that is up to 92.23% for silica sand and 98.87% for PP; also only 0.46%~1.05% of PP powder remains in recovered materials. In conclusion, the technology proves the ability of breaking-consolidation and realizes the goal of separation of micrometer-sized particles, and thus improve the sand control in exploitation of marine natural gas hydrate.