Open hole drill stem testing Internal pressure operated circulating valve IPO
IPO circulating valve can be run in cased holes or open holes and maintains a full bore through the tool.
The IPO circulating valve is used in the following situations:
When a full opening string is needed.
When redundant backup to annulus pressure operated circulating valves is needed.
When a limited amount of annulus-pump pressure is available to operate annulus pressure tools.
Feature and benefits
Requires no string manipulation to operate tool.
Permits passage of wire line tools through full opening bore.
Oil well Open hole Drill stem testing IPO Circulating valve