International Drillstem Testing: canadian drillstem testing analysis solutions

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CASED-HOLE PRESSURE OPERATED TOOLS

In a cased hole drillstem test, where a closed system is desirable due to a high pressure, high temperature environment, this set of tools can be run and activated using differential pressures between the tubing and annulus. These tools are multi-cycle tools that have an infinite repeatability of cycle. The Cased Hole Pressure Operated tools can be run in combination with a TCP/DST program and can support operations with circulation and well control.

Exit Valve (EV-3000)
The Exit Valve is a single shot annular pressure controlled, sleeve type, circulating valve designed to be used during cased hole testing and perforating operations, where only one circulation phase is required.

Multi-Cycle Circulating Valve (MCCV-3020)
The Multi-Cycle Circulating Valve is an unlimited multiple cycle, differential pressure activated, circulation control valve with five closed positions, one reverse position and one circulating position. The tool can cycle through this sequence as many times as is required during well operations.

Multi-Cycle Tester Valve (MCTV-3030)
The Multi-Cycle Tester Valve is an annulus pressure controlled ball valve designed to allow multiple cycles during cased hole testing and perforating operations.

Gauge Carrier (GC-3050)
The Gauge Carrier has been designed as a single body type carrier capable of housing four electronic memory pressure/temperature gauges capable of monitoring either tubing or annulus pressures.

Hydraulic Jars (HJ-3080)
The Hydraulic Jars allow jarring of the test string to aid in the freeing of downhole tools. The jar provides a temporary resistance that allows the drill pipe to be stretched. When the resistance is released, the drill pipe contracts to deliver the impact and freeing force.

Tension Safety Joint (TSJ-3110)
The Tension Safety Joint is a two stage disconnect tool which is run above the packer that allows the tubing to be disconnected from the tool string below it, should the need arise.

R-Type Retrievable Casing Packer (R-3120)
The R-Type Retrievable Casing Packer is a compression-set retrievable service packer used for applications such as testing, perforating, squeeze cementing, fracturing, acidizing and other operations.

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