气田管网优化设计研究

发布时间：2018-04-18 08:15

本文选题：气田管网 + 布局优化　；参考：《西安石油大学》2015年硕士论文

【摘要】：随着天然气资源的开发和应用的增长,气田集输管网系统日趋大型化、复杂化。为了经济、安全、合理的解决气田管网系统的优化设计问题,迫切需要引入优化技术对复杂的气田管网系统进行优化设计、优化管理、优化调度以及优化改扩建等,以促进国民经济的繁荣发展。本文对管网优化研究现状和理论算法进行大量调研,紧跟国内外在天然气管网系统优化技术方面的最新研究成果,在气田管网布局优化方面进行了深入研究,确定了管径、壁厚和管材的参数。根据气田集输树状管网的连接特点,以管网总产量长度最短为目标,建立了改进的多星级树状管网的集输系统布局优化的数学模型,本文采用遗传算法与Dijkstra算法结合的混合遗传算法进行求解,并得到全局最优解。本文采用VB语言编程,研发编制出能够应用于各种气田的可视化“气田管网布局优化软件”,综合利用GUI(图形用户接口)技术、计算机的图像技术、OLE(对象连接及嵌入)技术、数据库技术、面向对象技术,将工程设计与计算机编程结合起来,实现气田集输管网的优化。通过将自主编制的气田布局优化软件应用于A气田,并对比改进后的多星级树状管网集输系统与未改进的管网集输系统的总产量长度,发现改进后的气田集输管网的总产量长度可减少14.07%,进一步验证了自主编制软件在布局方面的优化效果。在A气田集输管网布局优化的基础上,对其集输管网进行结构参数比选,确定满足工艺要求的管径、壁厚以及管材规格等参数,并通过管网仿真软件对参数比选结果进行模拟计算,运行结果与现场实际情况相符,从而使本文的管网结构参数结果得到验证。
[Abstract]:With the development and application of natural gas resources, gas gathering and transportation network system is becoming larger and more complicated.In order to solve the problem of optimization design of gas field pipe network system economically, safely and reasonably, it is urgent to introduce optimization technology to optimize design, optimize management, optimize dispatching and optimize reconstruction and extension of complex gas field pipe network system.To promote the prosperity of the national economy.In this paper, a large number of investigations are carried out on the status quo and theoretical algorithms of pipeline network optimization. Following the latest research results in natural gas network system optimization technology at home and abroad, the pipeline layout optimization of gas field is studied in depth, and the pipe diameter is determined.Wall thickness and pipe parameters.According to the connection characteristic of gas field gathering and transportation tree pipe network and taking the shortest total output length of pipeline network as the goal, an improved mathematical model of gathering and transportation system optimization of multi-star tree pipe network is established.In this paper, a hybrid genetic algorithm combining genetic algorithm and Dijkstra algorithm is used to solve the problem, and the global optimal solution is obtained.In this paper, VB language is used to develop a visual "gas field pipe network layout optimization software", which can be applied to various gas fields. The technology of graphical user interface (GUI) and computer image technology (object connection and embedding) are used synthetically.Database technology and object oriented technology combine engineering design with computer programming to realize the optimization of gas field gathering and transportation network.By applying the self-compiled gas field layout optimization software to the A gas field, the total output length of the improved multi-star tree network gathering and transportation system and the unimproved pipeline gathering and transportation system is compared.It is found that the total output length of the improved gas gathering and transportation pipeline network can be reduced by 14.07, which further verifies the optimization effect of self-programming software in layout.On the basis of optimizing the distribution of gathering and transportation network in A gas field, the structural parameters of gathering and transportation network are compared and selected, and the parameters such as pipe diameter, wall thickness and pipe material specification that meet the requirements of technology are determined.Through the simulation software of pipe network, the results of parameter comparison and selection are simulated and calculated, and the running results are in accordance with the actual situation in the field, thus the results of the structural parameters of the pipe network in this paper are verified.
【学位授予单位】：西安石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE863

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