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本文根据我国煤层气田的分布和生产现场的地形地貌特征,生产管理的流程特点,综合分析了人工生产管理存在的客观问题和建设自动化管理的重要意义。结合山西沁水盆地煤层气生产自动化的实际功能需求,从生产流程到监控管理,划分3个管控单元,中心控制室为一级单元,以各采气区块(按集气站所辖气井划分)、集气站的各个值班室为二级单元,以气井、集气站、发电站的各个检控点为三级单元,构成一个三级SCADA自动化监控管理系统。各三级单元采用远程数据采集控制器(RTU)或PLC等检控装置,实现数据的自动采集和控制,并通过自建MCWILL无线网络,实现与中控室上位机远程数据通讯;各值班室(二级单元)计算机对所辖下层检控单元(生产井、集气站)进行集中数据处理、动态显示、远程控制和故障报警;中心控制室可以直接参与生产现场的监视和控制,实现整个生产过程的集中监控,并负责数据的存储和网络管理。突出特点是根据煤层气田生产管理实际,利用煤层气自建发电站供电和自建MCWILL无线网络进行信息通讯,满足了特殊环境条件下自动化建设需求。在实际生产管理中得到较好应用。对今后同类型煤层气田自动化建设具有很好的指导和借鉴作用。
According to the distribution of coalbed methane fields in China and the topographic and geomorphological features of the production site and the process characteristics of production management, this paper comprehensively analyzes the objective problems of manual production management and the significance of automatic construction management. Combined with the actual functional requirements of coalbed methane production automation in Qinshui Basin of Shanxi Province, from the production process to the monitoring and management, the three control units are divided into three levels. The central control room is a level one unit. Based on the gas wells divided by gas gathering stations ), Each duty station of the gas gathering station is a second level unit, and each of the checkpoints of the gas well, gas gathering station and power station is a third level unit, thus forming a three-level SCADA automatic monitoring and management system. All three units adopt remote data acquisition controller (RTU) or PLC and other prosecutors to achieve automatic data collection and control, and through self-built MCWILL wireless network to achieve with the control room PC remote data communications; the duty room (two Level unit) computer centralized control of the unit under the jurisdiction of the unit (production wells, gas station) for centralized data processing, dynamic display, remote control and fault alarm; central control room can be directly involved in the production site monitoring and control to achieve the entire production process Centralized monitoring, and is responsible for data storage and network management. Outstanding feature is based on the actual production and management of coalbed methane fields, the use of self-built coal-bed methane power supply and self-built MCWILL wireless network for information and communication to meet the special needs of the construction automation environment. In the actual production management has been better applied. The future of the same type of coalbed methane automation has a good guide and reference.