基于[火用]分析的伴生气凝液处理工艺改造研究  

Research on the modification of treatment process of associated gas condensate based on exergic analysis

作　　者：高帅[1] GAO Shuai(No.5 Oil Production Plant of Daqing Oilfield Co.,Ltd.)

机构地区：[1]大庆油田有限责任公司第五采油厂

出　　处：《石油石化节能与计量》2024年第7期71-75,81,共6页Energy Conservation and Measurement in Petroleum & Petrochemical Industry

摘　　要：为提高油田伴生气凝液处理工艺的产品收率和经济效益,降低其运行能耗,以某油田联合站为例,利用HYSYS软件建立了仿真流程,从能量数量和质量方面出发,通过常规[火用]和高级[火用]方法分析了设备及单元间的用能情况,并采用气相分流过冷进行了流程改进和优化,对改进前后的[火用]损和[火用]效率进行了评价。结果表明,各设备的[火用]损主要来源于自身的不可逆性,可避免的内源[火用]损在总[火用]损中占比较大,工艺改进后,重接触塔和脱乙烷塔内的冷量利用率更高,总功率从3943 kW降至3725 kW,可避免的内源[火用]损从62.1%降至50.1%。研究结果可为同类伴生气凝液处理工艺的优化提供实际参考。In order to improve the product yield and economic benefits of associated gas condensate treatment process in an oilfield and reduce the operation energy consumption,taking an oilfield combined station as an example,the simulation process has been established with HYSYS software.From the perspective of energy quantity and quality,the energy utilization of equipment and units has been analyzed through the exergic and exergic methods,and gas phase super-cooling has been adopted to im-prove and optimize the process.The exergic damage and exergic efficiency before and after improvement have been evaluated.The results show that the energy loss of each equipment mainly comes from its own irreversibility,and the avoidable endogenous energy loss accounts for a larger part of the total energy loss.After the process improvement,the cooling capacity in the recontact tower and deethanization tower was more efficiently utilized,the total power was reduced from 3943 kW to 3725 kW,and the avoidable endogenous losses were reduced from 62.1%to 50.1%.The results of research can provide a practical reference for the optimization of similar associated gas condensate treatment processes.

关 键 词：伴生气 内源[火用]损 外源[火用]损 可避免[火用]损 不可避免[火用]损 

分 类 号：TE34[石油与天然气工程—油气田开发工程]