雅克拉凝析气田地面集输与处理工艺技术

雅克拉凝析气田于2005年正式投入开发，建成处理量为260×10⁴m³/d的集气处理站。该站系统压力高、工艺简单可靠、压力等级确定合理、轻烃回收率高、适应性强、能耗低，自2005年11月一次投产成功后长期平稳运行，C³回收率已达95％，创造了巨大的经济效益和社会效益。为此，介绍了有关凝析气集输与处理工艺，其中处理装置应用的高压分子筛脱水工艺、直接换热工艺回收轻烃、多级闪蒸+精馏凝析油稳定工艺、凝析液烃梯级回收等工艺技术先进、成熟、可靠，具有参考应用价值。

GAS CONDENSATE TREATING AND GROUND GATHERING TECHNOLOGY USED IN YAKELA GAS CONDENSATE FIELDFU Xiu-yong, HU Zhi-bing, WANG Zhi2 ( 1.Yakela Gas Recovery of SINOPEC Northwest Oil Field C

Yakela condensate gasfield was exploited regularly in 2005 after trial production and a gas gathering station called Station Ya was built up with a condensate gas treating capacity of 2,600,000 m3 per day. This paper introduced both ground gathering and gas condensate treating technology respectively, and in particular analyzed different techniques used at the Station Ya as follows: (1) dehydration by molecular sieve under high pressure; (2) feed gas recycled to customers with dew point well controlled; (3) 95% C3 recovered by direct heat exchange (DHX) higher than the designed value; (4) gradient energy explored to its utmost level by multi grade vaporization and fractionation; (5) the condensate liquid hydrocarbon recycled by a cascading way; (6) other necessary devices and operations for safe and secure routine production.