SFIV-II
Surface-controlled bidirectional isolation valve
Isolate reservoir fluids within the upper completion and maintain a barrier through multiple operating cycles.
Isolation Valve Cleanup Subs
Remove debris above ball-type isolation valves
Reduce risks that debris will hinder valve operations
Clean up isolation valves with jetting or circulation subs to reduce the risk that debris will hinder or prevent valve operation. The jetting and circulation subs are designed for land or offshore applications, including in deep water.
The cleanup subs are designed to avoid damage to the isolation valve and packer bore. They are equipped with a standard washpipe box connection for installation on the end of the cleanup string. A range of sizes is available.
Schlumberger offers a jetting sub (left) and circulation sub (right) for clearing debris that may have accumulated above the sealing ball of an isolation valve.
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