CAJ | 학술논문

天然气水合物作为一种潜在的未来能源,其开采已经成为天然气工业新的研究热点.基于水合物藏热力开采的机理,建立了数学模型并编制了软件,对影响水合物藏注热开采效果的参教进行了敏感性分析.结果表明,分解前缘移动速度和累积产气量主要受孔隙度、注热温度、初始水合物饱和度、水合物藏初始温度、分解区导热系数和热扩散系数的影响,而未分解区的热力学参数对注热开采影响不大,该研究对今后水合物藏的注热开采具有一定的指导意义.
천연기수합물작위일충잠재적미래능원,기개채이경성위천연기공업신적연구열점.기우수합물장열력개채적궤리,건립료수학모형병편제료연건,대영향수합물장주열개채효과적삼교진행료민감성분석.결과표명,분해전연이동속도화루적산기량주요수공극도、주열온도、초시수합물포화도、수합물장초시온도、분해구도열계수화열확산계수적영향,이미분해구적열역학삼수대주열개채영향불대,해연구대금후수합물장적주열개채구유일정적지도의의.
As a potential energy in the future, natural gas hydrate has become a new hot focus of the natural gas industry. Based on the mechanism of thermal dissociation, a mathematical model is set up and solved. Sensitivity analysis of hydrates production from thermally induced dissociation is conducted to determine the governing parameters. The results show that the thermal dissociation front of hydrates and the gas production are mainly influenced by porosity, injection temperature, initial hydrate saturation, initial hydrate temperature, thermal conductivity and thermal diffusivity of the dissociated zone, while the thermal dissociation of hydrates is less sensi-tive to the thermodynamics properties of the hydrate zone. This study is useful to the future research of thermal dissociation of natural gas hydrates.