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In Situ Test Subs
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Pressure Control Equipment
In Situ Test Subs
Takes the place of the bottom connection, effectively becoming the joint that has been broken
Product summary
The In-Situ Pressure Test Sub (sometimes called Quick Test Sub) was originally designed by Hunting’s engineers to reduce the time spent pressure testing a lubricator rig up, prior to exposing it to live well pressure.
The In-situ Pressure Test Sub takes the place of the bottom connection, effectively becoming the joint that has been broken. As a result of its unique design, it can be tested in isolation to the rest of the rig-up, by the simple use of a small hand pump.
The mid-joint of an In-situ Pressure Test Sub is like any other quick union, except that it has two O-ring seals with a pressure test port between them. This feature is responsible for easy testing of joint integrity.
As noted, this saves pressure testing the whole lubricator rig-up, however there is another added advantage in that it allows for the lubricator system to be pressure tested whilst pressure sensitive equipment (such as perforating guns) are in the lubricator.
In-situ Pressure Test Sub centre connections fitted directly to WLVs or other equipment, saving in rig-up height, can be supplied by special order.
Features
Two O-ring seals to pressure test against via a port
Multi range of quick union connections and pressure ratings
Internal bore size range from 3.00" – 9.00"
Pressure tested hydraulically with a hand pump
Can be supplied to special order and connected directly to the Wireline Valve
Hunting In-Situ Test Sub centre connection lifting/test cap available
Benefits
Reduces the time spent pressure testing lubricators prior to exposing it to the live well pressure
The rig up can be tested whilst pressure sensitive equipment, such as Perforating Guns are in the lubricator
In-Situ Test Sub connected directly to the Wireline Valve will save rig up heights
Time saving benefits