一、引言为满足工农业生产的迅速发展和人民生活水平不断提高的要求,需要大力发展能源工业,尤其要千方百计地发展石油、天然气工业。但石油、天然气产地一般距消费地很远,因此,产品需要长距离输送。考虑到输送的经济性和可靠性,采用管道输送是最适宜的。 I. Introduction In order to meet the requirements of the rapid development of industrial and agricultural production and the ever-increasing standard of living of the people, the energy industry needs to be vigorously developed. In particular, the petroleum and natural gas industries should be developed in every possible way. However, the oil and natural gas producing areas are generally far away from consumers, therefore, the products need to be transported over long distances. Taking into account the economy and reliability of transportation, the use of pipelines is the most appropriate.