【摘要】 在分析了目前国内外天然气水合物开采方法优缺点的基础上,提出了利用太阳能加热开采天然气水合物的原理和方法,给出了开采系统的组成,包括太阳能加热采集、汇集、传输、光热转化和天然气分解产出等过程.利用所述的太阳能加热开采水合物方法,不需额外热源,具有经济、高效、清洁无污染等特点.运用传热学、热力学等学科知识和对储层的适当简化,建立了模拟计算数学模型,并进行了实际计算.计算结果表明,利用太阳能加热天然气水合物储层,可使储层温度有较大升高,能够使水合物快速分解,为今后进一步研究提供了理论基础和技术支持.更多还原

【Abstract】 All methods for natural gas hydrate exploitation were analyzed and the mechanism for exploiting natural gas hydrate by solar energy heating was researched.A new system was developed,which included solar energy collecting part,collection part,transmission part,conversion part and natural gas output part.By this way,there is no need for other energy,and it is an economic,effective and clean exploitation method.Furthermore,a simplified mathematical model based on heat transfer and thermodynamics was built and the case for natural gas hydrate decomposition was simulated.The results show that the temperature of reservoir which is heated by solar increases greatly and hydrate decomposition rate is also increased.This research provides theoretical basis and technical support for further study.更多还原