柱塞气举排水采气工艺关键技术研究

发布时间：2018-05-01 07:25

本文选题：柱塞气举 + 排水采气　；参考：《西南石油大学》2015年硕士论文

【摘要】：目前苏X区块面临气井积液严重、气井携液能力弱等问题。这些问题严重制约了区块气井产能,影响了区块的上产与稳产。本文研究的柱塞气举排水采气工艺是一种利用间歇开关井的方式积攒储层能量,进而通过推动油管内柱塞上下往复运动排出井筒积液进行天然气开发的排水采气方法。目前在该区块对若干产水气井进行了柱塞气举工艺试验,为检验工艺应用效果和适用条件,保证试验井能实现增产、稳产,达到较好的经济效益,并扩大柱塞气举工艺的适用范围,有必要对工艺的关键技术进行分析与研究。在综合调研的基础上,本文进行了柱塞气举过程的动力学研究,建立了其各个工作阶段的动态模型,并提出了柱塞运动方程的数值解法；根据动力学分析的成果,探讨了影响工艺效果的诸多因素,对工艺参数进行了优化设计,确立了工艺应用条件；在先期理论研究的基础上,结合区块实际条件,对工艺的设备与配套装置进行了研究和选型,阐明了工艺的安装流程与施工步骤；继而利用气井动态分析方法对区块柱塞试验井的应用效果进行了分析研究,详细阐述了典型试验井的应用情况和工作制度；同时为了扩大工艺的应用范围,发挥柱塞气举无人值守、自动控制的优势,建立了基于集气站的用于柱塞气举井的数据采集与监控系统,包括硬件配置、组态软件开发与通信系统设计,以实现柱塞气举生产过程的实时数据采集与远程紧急关断功能。通过本文对柱塞气举工艺的研究表明,该工艺具有排水效率高、安装维护方便等优点,适合有一定储层能量和高气液比的产水气井,可根据研究成果在研究区块对该工艺进行推广使用。监控系统的建立能很好地发挥柱塞气举工艺自动运行的优势,将来可在研究区块进行现场调试与应用。
[Abstract]:At present, Su X block is faced with serious fluid accumulation in gas wells and weak liquid carrying capacity of gas wells. These problems have seriously restricted the productivity of gas wells in blocks and affected the upproduction and stable production of blocks. The plunger gas lift drainage gas recovery technology studied in this paper is a drainage gas recovery method which accumulates reservoir energy by using intermittent switching wells and then pushes the plunger up and down in the tubing to discharge the wellbore fluid for natural gas development. At present, plunger gas lift technology tests have been carried out in several water-producing gas wells in this block. In order to test the application effect and applicable conditions of the process, the test well can achieve production increase, steady production and better economic benefit. It is necessary to analyze and study the key technology of plunger gas lift technology. On the basis of comprehensive investigation, the dynamics of plunger gas lift process is studied in this paper, the dynamic model of each working stage is established, and the numerical solution of plunger motion equation is put forward, according to the results of dynamic analysis, This paper discusses many factors that affect the process effect, optimizes the process parameters and establishes the application conditions of the process, combining with the actual conditions of the block on the basis of the previous theoretical study, The process equipment and supporting equipment are studied and selected, and the installation process and construction procedure of the process are expounded, and the application effect of the block plunger test well is analyzed by using the gas well dynamic analysis method. The application and working system of typical test wells are described in detail, and in order to expand the application scope of the process, the advantages of unattended plunger gas lift and automatic control are brought into play. A data acquisition and monitoring system for plunger gas lift wells based on gas collecting station is established, including hardware configuration, configuration software development and communication system design, in order to realize real-time data acquisition and remote emergency shutdown of plunger gas lift production process. The research on plunger gas lift technology shows that the technology has the advantages of high drainage efficiency, convenient installation and maintenance, and is suitable for water and gas production wells with certain reservoir energy and high gas-liquid ratio. According to the research results, the process can be popularized and used in the research area. The establishment of monitoring system can give full play to the advantages of automatic operation of plunger gas lift technology, and can be used in the field debugging and application in the future.
【学位授予单位】：西南石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE377

【参考文献】