压裂返排液脱盐处理理论能耗计算  

Calculation of the Theoretical Energy Consumption in the Process of the Desalination of Fracturing Flow-back Fluid

作　　者：陈天欣 杜娟 刘文士[1] 银小兵[1] 向启贵[1] 廖仕孟[3] 

机构地区：[1]中国石油西南油气田安全环保与技术监督研究院 [2]四川川港燃气有限责任公司项目管理及质量安全环保部 [3]中国石油西南油气田公司

出　　处：《油气田环境保护》2016年第1期9-12,60,共4页Environmental Protection of Oil & Gas Fields

基　　金：四川省页岩气重点实验室支撑项目(2015SZ007)

摘　　要：根据返排液普遍的水质条件,讨论反渗透、低温多效蒸发和机械蒸汽再压缩蒸发三种脱盐技术,并从热力学的角度分析比较了三种工艺的效率,得出三种工艺处理不同矿化度水质的理论能耗大小。结合实际应用情况,为页岩气开发过程中返排液处理外排的脱盐工艺提出了合理建议,脱盐工艺的确定需充分分析水质矿化度,针对高矿化度的水质,热蒸发法在理论上体现更高的脱盐效率。According to the water quality conditions of flowback fluid,this paper mainly discuss three desalination technology contained the reverse osmosis,low-temperature multi-effect evaporation and mechanical vapor recompression(MVR).The theoretical energy consumption of the three technologies was calculated based on thermodynamic analysis.Suggestions are proposed for selecting proper desalination process for shale gas flow-back fluid treatment.Desalination process should be determined by the degree of mineralization.For the wastewater with high salinity,thermal evaporation technology performs the highest efficiency in theory.

关 键 词：压裂返排液 脱盐 机械蒸发再压缩 多效蒸发 反渗透 

分 类 号：X741[环境科学与工程—环境工程]