集输系统双管掺水工艺节能优化运行研究  

Research on energy conservation and optimal operation of double-pipe water blend⁃ing process in gathering and transportation system

作　　者：王磊[1] WANG Lei(No.7 Oil Production Plant of Daqing Oilfield Co.,Ltd.)

机构地区：[1]大庆油田有限责任公司第七采油厂

出　　处：《石油石化节能与计量》2024年第4期1-5,共5页Energy Conservation and Measurement in Petroleum & Petrochemical Industry

摘　　要：某区块采用双管掺水集油工艺流程,由于现场无法判断掺水参数与现场工况的关系,导致回液温度远高于原油凝点,造成能源浪费,超出了经济运行成本区间。针对上述问题,利用Pipesim软件实现工艺建模,分析了掺水参数与工艺热能损失、井口回压、回液温度、工艺压能损失及能耗损失占比等参数的定量关系,得到了符合现场调控的一般性规律,并通过建立目标函数和约束条件,利用萤火虫算法实现了掺水比和掺水温度的自动调控。结果表明:掺水温度建议不超过75℃,掺水比不宜过高,现场调控应采用先调节掺水温度再调节掺水比的操作方式;随着掺水比和掺水温度的增加,单井运行费用存在最低值;经算法优化后,不同单井掺水比和掺水温度均有不同程度下降,预计每天可节约运行费用0.5万元~1万元。A block has been adopted double-pipe water blending and oil gathering process,and the relationship between water blending parameters and field conditions can not be judged on site,the return liquid temperature is much higher than the freezing point of crude oil,resulting in energy waste and exceeding the economic operating cost range.In view of the above problems,the Pipesim software is used to realize process modeling.What's more,the quantitative relationship between water blending parameters and process heat loss,wellhead back pressure,liquid return temperature,process pressure energy loss and energy consumption loss ratio is analyzed,and the general rule of field regulation is obtained.In addition,by establishing objective function and constraint conditions,using firefly algorithm realizes the automatic control of water blending ratio and water blending temperature.The results show that the water blending temperature should not exceed 75℃,and the water blending ratio should not be too high.The operation mode of regulating the water blending temperature first and then the water blending ratio should be adopted.With the increase of water blending ratio and temperature,the operating cost of a single well has the lowest value.After the algorithm optimization,the water blending ratio and water blending temperature of different single well are reduced to different degrees,and it is estimated that the operating cost can be saved by 5000 or 10000 yuan per day.

关 键 词：集输系统 双管掺水 掺水温度 掺水比 萤火虫算法 节能优化 

分 类 号：TE866[石油与天然气工程—油气储运工程]