Compression high temperature steam injection packer

The utility model relates to a compression type high temperature steam filling packer used in a thickened oil steam filling well, which is composed of an upper joint 1, a center pipe 2, a rubber cylinder 3, a positioning ring 4, a spring support 5, a compression spring 6, a moving ring 7, a downward pressing cap 8 of the rubber cylinder and an adjusting cap 9. The packer has the advantages of reasonable design, compact structure and reliable operation. Because of the improvement on the structure, the packer can be used in the courses of lifting operation and descending operation to avoid the loss of parts and components and a well clamping accident, and the utility model can also improve the success rate of sealing and sealing effect and can shorten sealing time. Because a telescopic pipe is cancelled, the packer is convenient to construct, and the cost is reduced. The packer which has a large range of use can be used normally in a well with a bad sleeve tube status and in an aged well and can be used repeatedly in the course of steam filling for three times underground.