Fusion Annulus Barrier
Product Applications
- Tubing and Casing isolation
- Sand control isolation
- Plugging perforations
- Sand screen plugging
- Gravel pack isolation
- Remedial cement repair
- Seal through casing
- Well suspension
- Well abandonment (Phase II)
- Water shut off
- Gas shut off
- Vent flow isolation / repair
- Annular barrier placement
Product Summary
Size
A single Fusion tool size can service wide range of tubing and casing geometries. The modular tool design allow the isol8 engineers to select the optimum thermite and alloy to bridge off and seal the tubing and annulus.
Heater
isol8’s Fusion annulus barrier can be deployed with a solid thermite heater for low-high expansion or a fluidised thermite heater for ultra-high expansion. For wells with open annuli the thermite can flow through perforations to provide sufficient radial heat to melt the sealing alloy.
Alloy
isol8 is the only alloy company to create a metallurgical bond with the wellbore tubing or casing. This delivers the highest shear-bond strength and longest life expectancy. The optimum alloy is selected based on the well temperature and the alloy plug length can be varied to achieve the desired pressure rating.
Optional Retainer
When used with the integral retainer our clients can be assured that there is no wasted ratty alloy run-off in the tubing and the thermite can prove a solid annulus platform for the alloy. A full-bore alloy plug is formed above the thermite.
Product Features & Benefits
- Modular Tool Design: Easily scaled for different well geometries
- Single toolstring size capable for servicing a wide range of different annuli dimensions
- Slickline, electric wireline, coiled tubing or pipe deployed
- Safe Initiation System: RP67 Compliant (Rev 3 Oct 19) Two independent safety features that prevent inadvertent tool functioning
- Secondary initiation means (100% backup: signal or timer activated)
- Full x-section – metal to metal or rock to rock plug
- Metallurgical Bond: Highest shear-bond strength and long-term integrity assurance
- Single trip operation (Integrated Retainer Option)
- Retainer eliminates ratty alloy run off portion in the internal bore
- Thermite can provide the annular platform on which the alloy barrier can be supported
- Option to connect wireless monitoring devices below the retainer
- Non-toxic alloy seal
- H2S and CO2 corrosion resistant alloy seal
- Alloy liquid viscosity enables conformity to undefined geometries
- Alloy density displaces cement / sand / rock
- Alloy options to suit well temperature up to 200°C
- Barrier length can be varied to achieve the desired pressure differential to 10,000psi (or casing burst limit in certain geometries)
- Designed to exceed ISO 14310 V0 qualification standard – Eternal* gas tight seal
- Superior performance to cement that shrink by 1-3%
- Ideally suited to CCS applications where cement degradation is accelerated by CO2
- Bismuth and non-bismuth alloy options are selected based on well temperature
- Thermite compacted in heaters to 10,000psi for superior heat output
- Minimum personnel required for well P&A barrier placement
- Rigless operation, small deck footprint and less time consuming than traditional P&A
- Lower cost than traditional P&A
* ‘Eternal’ was defined in OGUK Qualification of alternative materials for the abandonment of wells as 1 million days or 2740 Years.
Some product sizes are under development
| Running Tool OD (A) | Heater OD (Fluidized Heater) | Tubing Size (B) | Casing Size (C) |
|---|---|---|---|
| 3.5 | 3.5 | 4-½ | 7 - 9-⅝ |
| 3.5 | 3.5 | 5 | 7 - 9-⅝ |
| 3.5 | 3.5 | 5-½ | 7-⅝ - 9-⅝ |
| 3.5 | 3.5 or 5 | 6-⅝ | 9-⅝ |
| 3.5 | 3.5 or 5 | 7 | 9-⅝ |
| 3.5 | 5 | 7-⅝ | 10-¾ - 13-⅜ |
| 3.5 | 5 or 8 | 9-⅝ | 13-⅜ |
| 3.5 | 5 or 8 | 10-¾ | 13-⅜ |
| 3.5 | 8 or 12 | 13-⅜ | 20 |
| 3.5 | 12 or 18 | 20 | 30 |
| Running Tool OD (A) | Heater OD (Solid Heater) | Tubing Size (B) | Casing Size (C) |
|---|---|---|---|
| 3.5 | 3.5 | 4-½ | 7 |
| 3.5 | 3.5 | 5 | 7 |
| 3.5 | 3.5 | 5-½ | 7-⅝ |
| 3.5 | 5 | 6-⅝ | 9-⅝ |
| 3.5 | 5 | 7 | 9-⅝ |
| 3.5 | 5 | 7-⅝ | 10-¾ |
| 3.5 | 8 | 9-⅝ | 13-⅜ |
| 3.5 | 8 | 10-¾ | 13-⅜ |
| 3.5 | 12 | 13-⅜ | 20 |
| 3.5 | 18 | 20 | 30 |