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天然气水化物的早期研究主要集中在水化物的清除和预防上,其技术无论在原理上还是在应用上均已比较成熟,并已广泛地应用于生产实践。天然气水化物(固态)的体积远远小于天然气的体积,1 m~3的水化物通常可携带150～170 m~3的天然气,国外已较早研究和利用水化物的这一特点来输送天然气。针对当前世界天然气水化物制备、输送和储存技术的研究现状,通过对水化物和液化天然气系列技术的分析和经济比较,指出以水化物的形式进行长距离、跨海洋输送,在技术和经济上有一定的可行性,但离实用尚有差距,需要在技术和经济上进行深入研究。
Early research on natural gas hydrates mainly focused on the removal and prevention of hydrates. The technology of hydrates has been mature both in principle and application, and has been widely used in production practice. The volume of natural gas hydrate (solid state) is much smaller than the volume of natural gas. The hydrate of 1 m ~ 3 usually can carry natural gas of 150-170 m ~ 3. The overseas has earlier researched and utilized the characteristics of hydrates to transport natural gas . Aiming at the current research status of natural gas hydrate preparation, transportation and storage technology in the world, the hydration and LNG technologies are analyzed and compared economically. It is pointed out that long-distance and trans-ocean transportation in the form of hydrates is technically and economically feasible There is a certain degree of feasibility, but there is still a gap between practicality and the need for further technical and economic research.