1. Overview
Natural gas hydrate exploitation involves four physical processes: heat transfer, hydrate decomposition and phase change, multiphase seepage and formation deformation. The multiphase seepage process is accompanied by convective heat transfer, which affects the heat transfer efficiency, causes the change of effective stress and affects the underlying deformation, and the multiphase seepage process affects the dissipation rate of pore pressure, which in turn affects the decomposition of hydrates.
This device is used to study the effect of hydrate permeability on formation permeability and the measurement of hydrate heat transfer coefficient. Main technical parameters of 2.
1. Model size:
Reaction kettle a: the inside is cylindrical, the inner diameter is 20mm, the internal effective length is 250mm, the effective volume is 78.5ml, and the two ports adopt quick opening structure.
Reactor B: The interior is cylindrical, the inner diameter is 50mm, the internal effective length is 200mm, and the effective volume is 393ml. The two ports adopt a quick-opening structure. A thermal probe is installed at the axis, and the probe length is 180mm.
2. Operating temperature range:-5-20 ℃.
3. Maximum working pressure: 25MPa.
4. Temperature range:-5~20 ℃.
5. Digital display resolution: 0.1 ℃.
6. Temperature control accuracy: 0.1 ℃.
7. Other accessories: with detector lamp, window and stirring.