However, there exist two unfavour factors, which are uneven steaminjectionprofile and channeling, to affect the performance of steam soaking.
蒸汽吞吐和蒸汽驱是目前稠油开采的主要方法，吸汽剖面不均匀、汽窜是影响蒸汽驱开采稠油的主要问题。
2
Major factors which influence the steaminjectionprofile are steam overlaying and high-permeability zones during steam flooding and cyclic steam injection.