Downhole safety valves become corroded or damaged due to wireline activity. Standard chevron stacks in insert valves are unable to effectively seal in this damage and result in a leak path for hydrocarbons to migrate up the control line.
SwellStack, a swellable sealing solution with multiple chevron seals, is installed in place of an existing chevron stack.
This patented technology regains well integrity, effectively providing a seal of 10,000psi in liquid and gas.
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