Lifting, pressurizing, deblocking and expanding type packer

• Main Authors: LUO BAOYING, LUO QIAN
• Format: Patent
• Language: Chinese; English
• Published: 06.11.2020
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model discloses a lifting, pressurizing, deblocking and expanding type packer. Including a mandrel, the mandrel is sequentially provided with an upper connector, a locking mechanism, a setting mechanism, a sealing piston and a lower connector from top to bottom. The groove is formed between the sealing head and the liquid inlet hole, so that the sealing piston can be limited during setting, the acting force of oil in the rubber barrel on the sealing piston is balanced, and the sealing effect of the sealing piston and the supporting effect during setting of the rubber barrel are improved; due to the arrangement of the inclined plane structure and the L-shaped crank arm, during deblocking, the inclined plane structure can enable the liquid inlet gap and oil in the liquid inlet channel to form a pressure difference, the upward movement of the mandrel is accelerated, and the effective and rapid deblocking operation is improved; on one hand, the boss guarantees the unsealing stroke of the control sleev