Pressure isolation ring to isolate the setting chamber once hydraulic packer is set

A hydraulic set packer system, comprising:

• an outer sleeve;
• a mandrel extending through the outer sleeve;
• a setting port extending through a radial wall of the mandrel, the setting port configured to provide fluid communication from a central bore of the mandrel to a setting chamber formed between the outer sleeve and the mandrel;
• a piston configured to move axially along the mandrel in response to a setting pressure in the setting chamber, the piston configured to drive at least one radially actuatable component to actuate in a radial direction to engage a wellbore wall;
• and
• a pressure isolation assembly disposed in the setting chamber, the pressure isolation assembly configured to move axially with respect to the mandrel from a first position to a second position to seal the setting port, wherein the pressure isolation assembly comprises a pressure isolation ring having a radial through-bore such that fluid may flow into the setting chamber from the central bore in the first position.

A hydraulic set packer system, comprising:

• an outer sleeve, wherein the outer sleeve comprises a pressure release port extending through a radial wall of the outer sleeve, wherein the pressure release port is configured to provide fluid communication between a setting chamber and a wellbore;
• a mandrel extending through the outer sleeve;
• a setting port extending through a radial wall of the mandrel, the setting port configured to provide fluid communication from a central bore of the mandrel to a setting chamber formed between the outer sleeve and the mandrel;
• a piston configured to move axially along the mandrel in response to a setting pressure in the setting chamber, the piston configured to drive at least one radially actuatable component to actuate in a radial direction to engage a wellbore wall;
• and
• a pressure isolation assembly disposed in the setting chamber, the pressure isolation assembly configured to move axially with respect to the mandrel from a first position to a second position to seal the setting port, wherein the pressure isolation assembly is configured to seal the pressure release port in the first position and open the pressure release port in the second position.

A hydraulic set packer system, comprising:

• an outer sleeve;
• a mandrel extending through the outer sleeve;
• a setting port extending through a radial wall of the mandrel, the setting port configured to provide fluid communication from a central bore of the mandrel to a setting chamber formed between the outer sleeve and the mandrel;
• a piston configured to move axially along the mandrel in response to a setting pressure in the setting chamber, the piston configured to drive at least one radially actuatable component to actuate in a radial direction to engage a wellbore wall;
• a pressure isolation assembly disposed in the setting chamber, the pressure isolation assembly configured to move axially with respect to the mandrel from a first position to a second position to seal the setting port;
• and
• a pressure isolation assembly stop secured to the mandrel, wherein pressure isolation assembly stop is configured contact the pressure isolation assembly to block axial movement of the pressure isolation assembly at the second position.