四丙氟橡胶在含H2S和CO2酸性环境中的耐蚀性  

Corrosion Resistance of Tetrafluoroethylene-Propylene Rubber in H_2S/CO_2 Acidic Environment

作　　者：张瑞 李夯[1,2] 冯丽莹 丛川波[3] 廖洪千 马兰荣[1,2] ZHANG Rui;LI Hang;FENG Liying;CONG Chuanbo;LIAO Hongqian;MA Lanrong(State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development,Beijing 100101,China;Sinopec Research Institute of Petroleum Engineering,Beijing 100101,China;Department of Materials Science and Engineering,China University of Petroleum（Beijing）,Beijing 102249,China)

机构地区：[1]页岩油气富集机理与有效开发国家重点实验室,北京100101 [2]中国石化石油工程技术研究院,北京100101 [3]中国石油大学(北京),材料科学与工程系,北京102249

出　　处：《腐蚀与防护》2018年第8期582-586,共5页Corrosion & Protection

基　　金：国家科技重大专项(2016ZX0521005); 中国石化科技部攻关项目(P14113)

摘　　要：在含H_2S和CO_2酸性环境中采用高温高压浸泡腐蚀试验对四丙氟橡胶进行老化处理,考察了温度、H_2S和CO_2含量及环境压力对其耐蚀性的影响。结果表明:影响四丙氟橡胶耐蚀性的最主要因素是腐蚀环境的温度,而H_2S,CO_2含量和环境压力变化对材料性能的影响不大;随温度的升高,材料的力学性能下降,拉伸强度保持率大于69%;四丙氟橡胶具有良好的耐H_2S和CO_2腐蚀性能,在150℃,H_2S分压1.0 MPa,CO_2分压1.5 MPa条件下,其耐蚀性与全氟醚橡胶的相当,以该四丙氟橡胶为材料的封隔器胶筒的密封能力能够达到50 MPa。High temperature and high pressure immersion corrosion test was employed to age tetrafluoroethylenepropylene rubber（TFEP）in acidic environment containing H2S and CO2.And the effects of temperature,content of H2S and CO2,and environmental pressure on the corrosion resistance of TFEP were investigated.The results show that the most important effect factor was the temperature of corrosive environment,while the content of H2S,CO2 and environmental pressure had little effects on the material properties.The mechanical properties decreased with the increase of temperature,and the strength retention rate was greater than 69%.The TFEP had good corrosion resistance to H2S and CO2,which was equal to that of perflouroelastomer rubber in the acidic environment of 150℃,1.0 MPa partial pressure of H2S,1.5 MPa partial pressure of CO2,and the sealing capacity of the packer made of TFEP reached 50 MPa.

关 键 词：硫化氢 四丙氟橡胶 耐蚀性 二氧化碳 高温 高压 

分 类 号：TG174[金属学及工艺—金属表面处理]