Abstract: Since dual horizontal wells by SAGD process came into use in Fengcheng oilfield development, a series of problems were met such as serious steam breakthrough, high water cut, low production capacity, low oil?steam ratio, short horizontal?interval connected length between injection?production wells and large fluctuation of production, etc. In this paper, the production regularity during the steam chamber rising stage by SAGD process was analyzed based on the production performance pattern of dual horizontal wells. Combined with the field conditions, the regulation and control measures were taken, including optimizing the steam injection points and injection?production parameters and establishing the rational steam?liquid interface, effectively avoiding steam breakthrough or channeling, increasing the connected length and speeding up the steam chamber rising or vertical expansion by continuous increasing the amount of steam injection rate,which allowed the production effect in pilot area to be substantially enhanced. The daily oil production rate reaches 320 t, with the daily single well production rate from 17 t to 28 t and the average oil?steam ratio from 0.19 to 0.31, achieving the designed target of this project.These measures for injection?production regulation and control lay a solid technical foundation for wide industrial application of SAGD in this area in the future