Investigation of Hydrate Agglomeration and Plugging Mechanism in Low-Wax-Content Water-in-Oil Emulsion Systems
| Autor: | Jing Gong, Shangfei Song, Lin Ding, Xiaofang Lv, Bohui Shi, Qianli Ma, Ye Zhang, Juheng Yang, Yang Liu, Yu Yong, Wei Wang |
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| Rok vydání: | 2018 |
| Předmět: |
Wax
Materials science Economies of agglomeration General Chemical Engineering Flow (psychology) Flow assurance Clathrate hydrate Energy Engineering and Power Technology 02 engineering and technology 021001 nanoscience & nanotechnology Fuel Technology 020401 chemical engineering Chemical engineering visual_art Emulsion visual_art.visual_art_medium Particle 0204 chemical engineering 0210 nano-technology Hydrate |
| Zdroj: | Energy & Fuels. 32:8986-9000 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/acs.energyfuels.8b01323 |
| Popis: | Pipeline blockage caused by hydrates and wax in subsea pipelines is a major hazard for flow assurance in the petroleum industry. When hydrates and wax coexist in a flow system, the plugging risk is more severe. The effects of wax on hydrate formation, agglomeration process, flow properties, and plugging mechanisms were studied in a high-pressure flow loop using water-in-oil (w/o) emulsion systems. The flow properties of the system with the presence of wax were entirely different from those of the system without wax under the same experimental conditions. Three types of plugging were observed in the flow loop: rapid plugging, transition plugging, and gradual plugging. The interaction relationships between wax crystals, water droplets, and hydrate particles and the formation of wax–hydrate aggregates were proposed based on the particle video measurement (PVM) probe observation and the analysis of the fluid viscosity. The mechanisms of different plugging scenarios were presented, which were highly correlated... |
| Databáze: | OpenAIRE |
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