摘要
针对塔中I碳酸盐岩气田CO2、H2S共存的腐蚀环境,通过模拟地层水环境,初步筛选复配适应此环境下的地面管道用缓蚀剂,并通过模拟塔中83井和62-3井地面管道环境的腐蚀实验,对复配缓蚀剂YT-1进行适用性评价,结果表明:YT-1缓蚀剂可以使L360管材的腐蚀速率小于0.076 mm/a,同时具有良好的抗硫化物应力开裂腐蚀的能力。将YT-1缓蚀剂应用于塔中I气田塔中83井和塔中62-3井,腐蚀监测结果表明:缓蚀效果较好,地面管道平均腐蚀速率为0.016 mm/a,同时管道未发生开裂。(表3,图5,参11)
This paper targets at CO2-H2S coexisting corrosive environment of No.Ⅰ carbonate gasfield in Middle Tarim,primarily screens out surface pipeline inhibitor particularly applicable to the environment through surface water environment simulation,and performs a feasibility evaluation on complex formulation inhibitor YT-1 through corrosion experiments with simulation of Well Tazhong-83/62-3 surface pipeline environments.The study results show that YT-1 inhibitor has good antisulfide stress corrosion cracking （SSCC） property,able to limit corrosion rate of L360 pipe material below 0.076 mm/yr.After the inhibitor is applied to both the wells in the gasfield,the related corrosion monitoring results suggest good corrosion inhibition effects,for surface pipeline corrosion rate averages 0.016 mm/yr,and no pipeline cracking occurs.
出处
《油气储运》
CAS
2013年第9期962-965,970,共5页
Oil & Gas Storage and Transportation
基金
中石油股份公司重大科技专项“海相碳酸盐岩大油气田勘探开发关键技术”,2008E-0709
关键词
塔中I气田
气井
H2S
CO2
缓蚀剂
腐蚀
No.Ⅰ Gasfield in Middle Tarim
gas well
H2S/CO2
corrosion inhibitor
corrosion
