Compensative hot producing packer

The utility model discloses a compensating thermal recovery packer, which comprises a releasing mechanism and a sealing mechanism and a setting and decapsulation mechanism connected with the releasing mechanism in serious. Wherein, the releasing mechanism comprises a side-port pup joint, a shearing pin, a connecting ring, an inner hoop, a ball holder, an external sleeve, a fishing head and a lock block; the sealing mechanism comprises a connecting ring, a sealing ring, a shot, a central pipe, a pin, a lock ring and a lock ring sleeve; the setting and decapsulation mechanism comprises a lock sleeve, a steel sleeve, a lock block, a lower piston, an upper and a lower cone, a slips stock, a slips, a slips hoop, a baffle ring, a lock block ring, a decapsulation lock block, a connecting sleeve, a connecting sleeve lock block, a connecting pin and a compensation mechanism connected to the setting and decapsulation mechanism. The compensation mechanism comprises an external cylinder connected by the connecting pin and the connecting sleeve, an internal cylinder arranged inside the external cylinder and a bottom sub connected at lower end of the external cylinder. The utility model has the double functions of the packer and the compensator, which can be widely used in petroleum thermal production technics.