Experimental study of the flow behaviour of a gas hydrate system in the Hytra Loop

[摘要] Hydrate behaviour in gas pipelines has been investigated using the Hytra loop, a one inch flow loop operating in a gas dominated flow regime at high pressure, low temperature conditions. In these experiments gas from the city network was circulated at high velocity through the test section of the loop and deionised water was injected at constant flow rate to simulate steady-state production of natural gas with low water content. Temperatures and pressures in the loop were varied in a range of 6 to 18 C and 6895 KPa to 10342 KPa, respectively, to produce a wide range of subcoolings. The pressure drop evolution across consecutive sections of the loop was analysed. At low subcoolings the pressure drop-time records were observed to steadily increase over time, while at high subcoolings they exhibited a series of pronounced pulses. This behaviour was interpreted in terms of a stenosis build-up mechanism at low subcooling conditions and deposition of wet hydrate particles with sloughing at higher subcoolings

[发布日期] 2012-08-16 [发布机构] CSIRO

[学科分类] 地球科学(综合)