煤层气集输系统油污杂质净化工艺评价及改进  

Evaluation and Improvement of the Purification Process of Oil Contamination in Coalbed Methane Gathering System

作　　者：刘红霞 刘震 仝世伟 安玉敏 李咏梅 薛杨 LIU Hongxia;LIU Zhen;TONG Shiwei;AN Yumin;LI Yongmei;XUE Yang(Shanxi CBM Exploration and Development Branch,Petrochina,Shanxi 046000;CBM Exploration and Development Pilot Test Base of CNPC,Shanxi 046000;Beijing Key Laboratory of Process Fluid Filtration and Separation,College of Mechanical and Transportation Engineering,China University of Petroleum(Beijing),Beijing 102200)

机构地区：[1]中国石油天然气集团有限公司山西煤层气勘探开发分公司,山西046000 [2]中国石油天然气集团有限公司煤层气开采先导实验基地,山西046000 [3]中国石油大学(北京)机械与储运工程学院/过程流体过滤与分离技术北京市重点实验室,北京102200

出　　处：《中国煤层气》2020年第5期39-43,共5页China Coalbed Methane

基　　金：国家科技重大专项项目“沁水盆地高煤阶煤层气高效开发示范工程”(2017ZX05064)。

摘　　要：煤层气在从集气站到外输的多级增压集输过程中,工艺气体中夹带有大量水分和润滑油、粉尘等杂质,严重影响地面集输系统安全高效运行。在现有集输系统工艺的基础上,设计了一套逐级分离不同类型颗粒物杂质的工艺流程,其关键在于提高压缩机后过滤分离器的性能,为此提出了过滤分离元件的改进措施,可将出站过滤器的分离效率提高到85%以上。以上结果为煤层气田地面集输系统气质净化工艺设计与改造提供了参考。Impurities such as dust,water and lubricating oil are contained in the processed gas during the multi-stage pressurized gathering of coalbed methane from the gas station to the export ends,which has seriously affect the safety and effective operation of the gathering system.A set of process flow for separating different kinds of particulate impurities step by step is designed,while the key is improving the separation performance after the compressor.Therefore,the improvement measures of the filter element are proposed,which can increase the separation efficiency of outbound filter to more than 85%.The results provide a reference for the design and improvement of purification process in coalbed methane gathering system.

关 键 词：煤层气 油污 在线检测 元素分析 分离工艺 过滤元件 

分 类 号：TE863[石油与天然气工程—油气储运工程]