稠油井注汽系统的热效率分析

Note vapour systematic thermal efficiency analysis of the thick oil well

建立了热采注汽系统热效率的计算模型。根据XX油田数据计算了2个注汽系统的热效率。提出了提高注汽系统热效率的三项措施:(1)降低锅炉的过剩空气系数;(2)按最大允许热损失设计地面输汽管线的保温层厚度;(3)使用视导热系数小的隔热油管,按箍增加隔热结构,防止热封隔器的泄漏等。

Establish a calculation model of a hot steam injection system thermal efficiency. According Bin Nan oilfield data to calculate the two steam injection system thermal efficiency, Raised three measures to improve the steam injection system thermal efficiency ： （ 1 ） reduce Boiler excess air coefficient; （2） Basis the maximum allowable heat loss design the ground of Steam Pipeline＇s insulation thickness; （3） Use of insulation tubing which as small thermal conductivity , Use hoop increasing insulation structure, to prevent Heat sealing Packer＇s leaking and so on.