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Usage：This type of Packer is mainly used to oil recovery, water injection, fracture and acidification.
Structure feature：Run the Packer to determined depth, fill fluid into tubing, when the pressure is high enough, setting shear pin will be cut and setting piston compress rubber element. Then element is horizontally inflated, which could seal tubing & casing annulus. Packer has single locking system, which could prevent to unset after releasing. When filling fluid into tubing & casing annulus and increase to determined pressure, reverse well-flushing piston could be open. Fill fluid continuously, then could start reverse well-flashing operation. Pull up string tools could unset the Packer. |
