雅克拉气田集输管线的腐蚀及其防治

Corrosion and Its Prevention of Gathering System in Yakela Gas Field

稚克拉凝析气田位于新疆库车县境内,气田集输系统于2005年建成投用,采取一级布站、单管不加热输送工艺生产。管输介质具有高压力、高产量、高流速、高含CO_2、低含水、低含H_2S的"四高两低"特征。腐蚀环境非常恶劣,系统投产仅2年时间,腐蚀现象已非常突出。本文进行了相关的腐蚀分析,并提出了防治措施。

Yakela condensate natural gas field is transferring system was built and put into service in and single pipe without heating. The media of pipe located in Kuche county of Xinjiang and the gathering and 2005. It takes the process with first order station arrangement transmission have some characteristics, such as high pressure, high output, high velocity and CO2. The corrosion phenomenon has been outstanding particularly after the system was put into production because the corrosion circumstance is very severe. The relative corrosion mechanism has been discussed specially, and the corresponding countermeasures are put forward.