By analyzing " the feasibility study on lan - cheng - yu product pipeline project " as well as by laying the stressed analysis on the sales competition at pipeline peripheries , this paper points out that the increase in pipeline throughput and the establishment of new structure of china ' s oil enterprises will be a long course due to the formation of diversified competitions . based on analyses above , a more practical pipeline throughput and a reasonable construction scale are determined 本课题以兰成渝管道为分析对象，在对“兰成渝成品油管道工程可行性研究”进行分析的基础上，首先侧重对管道周边销售市场竞争环境的分析，提出管道输量的增长由于多元竞争以及中国石油企业的新格局建立，会是一个缓慢增长的过程。
Problems have emerged with this pipeline due to the actual adoption of large diameter line . this collaterally justifies the construction and operation proposal drawn by this research project . the conclusions and achievements will provide useful reference for the further construction of product pipelines under market - oriented environment 兰成渝成品油管道实际采用的大直径管道，在管道投产后的日常输送中某些问题已经显现，从一个侧面说明本课题提出的观点和方案是正确的，可为未来市场经济环境下的成品油管道建设提供借鉴。
Based on the case analysis , the paper points out that from the view of whether it can be counted , environmental impact caused by pipeline engineering transporting refined oil can be classified into three types : the first is " can be counted accurately " , the second is " difficult to count accurately " and the third is " its cost is too huge to be counted " 摘要以价值衡量为标准，将成品油管道工程的环境影响分为三类，即可以准确计量其带来的价值损失的环境影响、不易准确计量其引起的价值损失的环境影响和目前难以计量其造成的巨大价值损失的环境影响。
In addition , analysis is made on the correlation between a combination factor consisting of pipeline capital investment by various designs , unfulfilled product value contained in tank and pipeline , pipeline operation cost and the contamination buildup under different operation patterns , and the construction of storage tank . particular emphasis is laid on the safety , economy and efficiency of pipeline operation , and some relevant subjects like batching number and storage tank construction are analyzed from the view of pipeline opera tor . finally , an optimized construction proposal for lan - cheng - yu product pipeline is put forward , which may enhance the inflexibility and adaptability of this pipeline 在此前提下，确定了更为实际的管道输量及合理的管道建设规模，完成了多种管道建设方案的主体投资、管内罐内油品资金占用、管道运行费用、不同运行工艺方式下混油产生与储罐建设的关系等分析；强调管道输送的安全性、经济性、高效性；从运行管理者的角度分析了批次数与储罐建设等有关问题，最终提出了能够确保管道灵活性，适应性的兰成渝成品油管道最佳建设方案。
