Abstract: According to oil-gas gathering process of single or double ring-type pipelinemixing with heat water,a method of calculating hydraulic and thermodynamic parameters such as flow,ratio of water in oil,pressure,temperature,specific heat for oil,gas,water pipe net is presented.A parameter optimization model for multiobjective is established with heat and electricity consumption,system investment as an objective function,and with pressure,temperature,range of diameter of pipes as restrain conditions.A method of solving the problem is given also.The authors pointed out that the higher investment and electricity consumption are resulted from the longer section with mixing heat water in the process of double ring-type pipeline.Mixing water is more concentrated in the ring part of the single ring-type pipeline process,so the heat consumption is larger in this process.Based on the objective function in this paper,the process of double ring-type pipeline for mixing heat water ought to be used.

Key words: oil-gas gathering, system, optimization design, analysis

摘要： 针对单、双管环形掺热水集油流程,给出了系统的水力、热力参数,包括流量、含水率、压力、温度、比热等的计算方法,以系统的热耗、电耗及投资为目标,以压力、温度、管径取值范围为约束条件,建立了系统参数多目标优化数学模型,并给出了求解方法.结合实例分析,指出:双管环形集油流程的掺水管线较长,导致系统投资、系统电耗较大;单管环形集油流程在环上掺水较集中,导致系统热耗较大.按本文建立的目标函数,经优化得出,双管环形集油流程较优.

关键词: 油气集输, 系统, 优化设计, 分析