自动配汽工艺研究

STUDY ON AUTOMATIC STEAM DISTRIBUTION TECHNOLOGY

自动配汽技术适用于油层渗透率错综复杂或夹层发育不完全的油井,自动配汽管柱通过对配汽孔道大小调节机构的设计来实现根据各储层的压力差异自动调节各储层的注汽量,实现配注汽量的自动控制和调节,提高了配汽的准确性,达到解决或缓解层间矛盾以及注入蒸汽最合理、最有效地利用的目的。该工艺的原理是通过上下密封器将注汽单元分隔开,配汽孔道大小调节机构在各单元地层压力的作用下自动调节配汽孔道的大小,以实现各注汽单元注汽量按需分配。该技术已经应用于现场,且取得了明显的经济效益。

The automatic steam distribution technology is suitable for oil wells with complicated formation permeability or immature inter-beds. The auto-distribution string realizes the auto-filling of steam to reservoirs of various pressure differentials by adjusting the distributing orifice, and the automatic controlling and adjusting as well. This technology improved the accuracy of steam distribution and optimized the steaming effect. The principle of this technology involves using the upper and lower packer to isolate the upper and lower steam injection units, and the distributing orifice is automatically adjusted by the formation pressure in different unit. This technology has been applied in field practices and with remarkable economic benefits achieved.