Effected by many factors during huff and puff, the reservoir of edge water invasion and complex small fault block, the producing wells which are located in the neighborhood of the fault trace and oil-water contact, are quite difficult for development.

• 摘要由于在蒸汽吞吐开发过程中要受到多种因素的影响，而且生产井处于断层和油水边界附近，所以层间水复杂小断块稠油油藏的开发难度较大。