非金属管在酸性环境应用存在的问题  

Problems in application of non-metallic pipes in acidic environment

作　　者：齐国权[1,2] 戚东涛[1,2] 魏斌[1,2] 李厚补[1,2] 丁楠[1,2] 蔡雪华[1,2] 张冬娜[1,2] 

机构地区：[1]中国石油集团石油管工程技术研究院,陕西西安710077 [2]中国石油天然气集团公司石油管工程重点实验室,陕西西安710077

出　　处：《油气储运》2015年第12期1272-1275,共4页Oil & Gas Storage and Transportation

基　　金：国家自然科学基金资助项目"油气耦合介质在热塑性塑料中的渗透特性及机理研究";51304236;陕西省自然科学基金资助项目"酸性气体在热塑性塑料中的渗透特性及机理研究";2014JQ6227

摘　　要：随着大规模高含硫化氢(H2S)天然气田的开发,用于酸性油气田的非金属管材备受关注。非金属管在应用过程中存在诸多问题:缺乏适用性评价技术及选材规范,接头连接易失效,非金属管压力等级评定不合理,气体渗透机理与规律不明确等。对上述问题进行了原因分析,进而提出了非金属管在酸性环境中应用的建议:提高抗硫非金属管的管体与接头制备技术水平,制定酸性气田用非金属管的相关标准规范,完善非金属管材在酸性环境中的长期服役评价技术,开展抗硫非金属管的现场应用及其配套技术研究。With intensive development of gasfields with high H2S, non-metallic pipes for acidic gasfields have attracted more and more concerns. However, there are many problems in application of non-metallic pipes, such as absence of relevant codes and standards with regard to applicability evaluation and material selection, joints prone to fail, unreasonable rating of pressures in non-metallic pipes, uncertainties in gas seepage mechanism and patterns. In this paper, above problems are described and analyzed. Then, relevant suggestions are proposed for deployment of non-metallic pipes in acidic environments. For instance, techniques for fabrication of non-metallic pipes and joints with necessary sulfur-protection properties should be improved, necessary codes and standards should be stipulated for non-metallic pipes used in sour gasfields, assessments should be promoted for long-term services of non-metallic pipes in sour environment, and more researches should be made on on-site application and relevant matching technologies for sulfur-resistant non-metallic pipes. （1 Figure, 14 References）

关 键 词：非金属管 酸性环境 H2S 适用性 

分 类 号：TE89[石油与天然气工程—油气储运工程]