油田注水自动加药系统及其在锦州油田的应用

Application of the Automatic Chemical Dosing System of Oilfield Water Injection in Jinzhou Oilfield

针对锦州采油厂人工加药存在的弊端,研发了自动加药系统。该系统的控制任务主要是针对2种药品的投加,采用不同的控制方案分别对2个柱塞泵和送盐电动机进行控制,具有可靠性高、结构灵活、界面友好及易于操作等特点。系统硬件主要由上位机、下位机和现场仪表等组成。现场应用情况表明,系统解决了人工加药的弊端,实现了自动化管理,节省了大量人工;注入水加药质量浓度完全符合设计要求,保证了注水开发效果。

In light of the defect existing in the artificial chemical dosing system in Jinzhou Oil Production Plant, the automatic chemical dosing system was developed. The control task of the system mainly deals with the adding of two chemicals. The different control schemes are adopted to control two piston pumps and one salt -feeding electric motor. It is characterized by high reliability, flexible structure, friendly interface and easy operation. The system hardware mainly consists of host computer, slave computer and field instruments. The field application shows that the system has solved the defect of artificial chemical dosing, achieved automatic management and saved large a- mounts of manpower. The chemical dosing volume fraction of the injected water is completely in agreement with the design requirement and the development efficiency of water injection is thus ensured.