| 1. | The main content of this dissertation is the design and research of the seawater injection automation system on the oil platform
本文主要针对海洋石油平台注海水监控系统进行了设计和研究。 |
| 2. | It applies the fuzzy control theory on the drag adding system . put drag system is a very important system in the seawater injection system
在注水系统中，加药是海水水质处理过程中的一个十分重要的环节。 |
| 3. | At chengdao oil field , seawater injection is a main method in oil extraction , but it is difficult to improve the water quality
在海洋石油平台采油过程中，注水采油是一种行之有效的方法，然而注水系统及其水处理系统的自动化程度却一直没有得到必要的提高。 |
| 4. | The system keeps ahead in the seawater injection system in china , and it gives the example of the design of the seawater injection system at the shallow sea oil field
该系统在国内浅海油田注海水系统中处于领先地位，为国内浅海油田注海水系统的自动化设计提供了范例。 |
| 5. | One certain offshore platform takes the duty of seawater injection in the oil field , and the seawater treatment process of the offshore platform is the key to ensure petroleum exploitation in the sea
海洋石油生产平台担负着该平台所处油田的注水任务，是海洋石油生产中的重要环节，而平台的注海水处理工艺是确保海上石油开采的关键。 |
| 6. | Based on the research of the seawater at chengdao oil field and the seawater injection techniques on the chengdao 2 platform , this thesis designs the supervisory and control system for the seawater injection system on the chengdao 2 platform
本文在对埕岛中心二号平台海域水质、注水工艺及水处理系统研究的基础上，开发了埕岛中心二号平台注海水自动监控系统。 |
| 7. | After the automation system began to run in 10 , 2001 , the whole seawater injection flow can be supervised all the time , and the water quality has been improved to eligible degree . at the same time , the management is ameliorated greatly , and the cost is decreased
本系统2001年10月正式运行后，实现了注海水系统全流程自动化监控，技术指标均达到埕岛油田注水要求；悬浮固体含量5 . 0mg l ；溶解氧含量0 . 1mg l ，使水质得到了有效地控制。 |
| 8. | In addition , in order to make the pumps realize constant injection pressure , the expert tuning pid vfvs constant injection pressure control sub - system for pumps is established and relevant software module is developed . the sub - system can control automatically the quantity and rotate speed of the pumps running to realize the pumps optimum run according to the seawater injection plan of the oil field , which realizes constant injection pressure , energy saving and decreases the consumption to a large degree
此外，为平台注水泵机组的优化运行构建了基于专家整定pid控制的变频调速恒压注水控制子系统，并开发了相应的软件模块，完全省却了pid控制器的硬件设备，使得注水泵机组可以根据油田注水量的配注方案优化运行，自动控制注水泵的转速和运转台数，既能实现平稳增压注水，又能在很大程度上节能降耗。 |
| 9. | This system is based on the programmable controller and dh + network ( data high way plus network ) , and it can supervise and control the whole flow of the seawater injection . as the primary device in the system , programmable controller implement the flex logic control for the flow and can collect the data in the flow to establish the control center
该系统基于可编程控制器及dh +网络，实现了对注海水全流程(海水提升、海水粗滤、海水加药、海水沉降、海水细滤、海水脱氧、气水分离、注水罐、注水泵)的实时监控。 |
| 10. | But the platform has some problems as follows : first , the seawater quality of the sea where the oil field is located is so special that it is difficult to make the treated seawater achieve the injection index . second , the supply of seawater injection of the oil field is more than the demand , and the surplus is drained directly to the sea by circumfluence that makes seawater resources , energy resources and medicament for seawater treatment waste . and third , it is very difficult for the pumps to realize constant pressure injection because there is no distributing room for seawater injection in the sea
但目前该平台所存在的问题是：由于油田所处海域海水水质特殊，使得处理后的海水难以达到入注指标；再者，目前的油田注水供大于需，经水处理工艺处理后的海水，其多余部分采取回流措施排海，造成水源、能源和水处理药剂的浪费；此外，由于海上注水无配水间分水，造成注水泵机组不能实现平稳增压注水。 |
