Abstract: The sieve completion is adopted for horizontal heavy oil well in Liaohe oil field,and the steam injection of indiserimi- nating type is selected in the process of steam injection,so impacts of the aeolotropy of oil-bearing horizons and the peripheral recovery result in partial steam breakthrough and heterogeneous mobilization of horizontal section.Test data indicate that the wells of heterogeneous mobilization of hori- zontal seetion of horizontal well account for about 80%, while the segments with good mobilization account for 1/3～1/2 whole well segment.For the medium to deep heavy oil pool,the concentric double-tube steam injection and the ad- justment of steam amount in well top are introduced to de- crease the thermal loss and to increase the thermal insula- tion.The implement effect suggests that after the adoption of double-tube steam injection,the mobilization of horizon- tal segment is improved largely and the production efficiency is also enhanced greatly.