Product Description

The 2-3/4” OD Addressable Disconnect Tool (Model NBADT-275) is the latest innovation in Disconnect Tools from ICSI.

This Tool combines technology from several of ICSI’s latest innovations to make an impressively robust alternative to other Disconnect Tools on the market.  This Tool is the most versatile disconnect/release tool on the market, as Cartridges and subs can be swapped out to accommodate a variety of gun systems and thread profiles.  Cartridges are armed with A-85, RJ-211, or DynaSelect detonators.

The NBADT can be used with Control Fire Systems or with other addressable switch systems.  The simple design of this Tool makes it possible for a field hand to change out the addressable switch in the Tool in less than five minutes.  The Upper Housing of the Tool is removed to expose the built-in Switch Holder, the switch is changed out, and the Housing is threaded back onto the Tool to make up the rest of the electrical connections.  No extensive wiring is required of the field hand.  A full rebuild on the Tool takes less than 45 minutes.

If a wireline operator is running an EB gun string or is not running any switch at all, a separate Switch Housing can be run on the Tool to allow it to be run with ICSI’s EB-Compatible Addressable Switch.  This Switch allows its user the safety of an addressable switch without having to purchase an expensive addressable perforating system.

When the decision is made to disconnect, an addressable code is sent to the switch installed in the NBADT and current is supplied to the Tool.  A mechanical release system is activated and a Hydrostatic Equalizing Plug is severed, equalizing pressure inside the Tool.  The Fishing Neck is then released.  The NBADT is typically run below the CCL.  The Top Sub of this Tool is sealed so the wireline engineer will be able to see collars as he/she is pulling out of hole.

The NBADT can be lifted with any tool string that the CCL can be lifted with. The 2.75” Tool is pull rated to 35,000 lbs., with the weak point being at the release mechanism.  However, when the Tool is in the well under hydrostatic pressure, the release mechanism has no weight or compression on it due to the design of the Tool.

Designed with efficiency in mind...

•Speed-  Switch swaps take less than 5 minutes and full rebuilds take less than 45 minutes.
•User-friendly-  This Tool can be tightened through andwrench placement is not critical.
•Low-maintenance-  This Tool does not require frequent rebuildsunless run in high-temperature or corrosive wellbores.  On most jobs, two Tools can be sent tolocation and not returned to the shop until the job is over.  Release Cartridges are returned to ICSI forrebuilds.
•Low long-term cost of ownership-  The NBADT-275 does not require part-specificrebuild kits. Other than O-rings, few parts need frequent replacement.  Aside from the purchase price of the Tool,long-term cost of operation should be less than $2.00 per run in most cases.

NBADT-275 Specifications

•OD:  2.75”
•Length:  28.4” (33.7” for EB-Compatible Model)
•Weight:  43 lbs. (50 lbs. for EB-Compatible Model)•PressureRating: 22,000 psi.
•Side Load Rating: 30,000 lbs.
•Safe Working Load: 26,000 lbs.
•Max Pull Rating: 35,000 lbs. (in air)
•Max (Continuous) Through Current: 7A
•Max (Continuous) Through Voltage: 600V
•Temperature Rating: Based on Addressable Switch (ICSI Addressable Switch is rated for 350°F)
•Fishing Neck left after Release: 1-3/4” Otis (fished with JDS Pulling Tool)
•Connections: 
    •Top: 1 5/8”-6 ACME (GO-B) Pin   (1-7/8”-6ACME available)
    •Bottom: 1 5/8”-6 ACME (GO-B) Box   (1-7/8”-6ACME available)