isol8 Fusion Alloy Barriers

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The most technically advanced, metallurgically bonded-alloy barriers on the market.

Page last modified
February 22 2024

isol8’s range of Fusion products are the most technically advanced, metallurgically bonded-alloy barriers on the market. They represent a step change in downhole sealing performance with the highest shear-bond strength, greatest radial expansion capability and longest life-expectancy.

isol8’s Fusion products are designed by well engineers for well engineers.

They can be deployed on slickline, electric wireline, coiled tubing or pipe. The single trip design has an integral retainer to deliver the highest level of barrier assurance and eliminates ratty alloy.

Safety first. isol8’s initiation system incorporates 2 independent means to prevent the inadvertent initiation of the exothermic reaction at the wellsite: complying with API RP-67 (Ed 3, Oct.’19). The toolstring also incorporates 2 independently powered initiation triggers to avoid any potentially costly misrun.

Engineered for Safety, Integrity, Strength, Quality and Reliability.

Pros & Limitations
Bonded-alloy barriers are zero-emission barriers.
The Fusion technology has >5 times the shear-bond strength of an unbonded bismuth alloy plug.
isol8 is the only oilfield service company that creates a metallurgical bond between the alloy and the steel.
Our Fusion plugs, annulus barriers, patches, straddles and bonded alloy centralizers all create a metallurgical bond with the steel pipe.
The Fusion alloy barrier can create ultra-high expansion plugs.
Ultra-high expansion plugs can withstand much higher differential pressures than high expansion mechanical bridge plugs.
Alloy barriers can seal the tubing and the annulus.
With Fusion plugs and patches/straddles the alloy can penetrate screens, gravel packs and perforations.
Currently only available in 3.5” OD tool size for 4.5” Tubings / Casings and above
Specification Title Specification Description
Slickline, electric wireline, coiled tubing or pipe deployed
RP67 Compliant (Rev 3 Oct 19) Two independent safety features that prevent inadvertent tool functioning
Qualified Barrier
Designed to exceed ISO 14310 V0 qualification standard – Eternal* gas tight seal


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Technology Readiness Level


Development Technology demonstration Mature / Proven
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isol8 is the emerging market leader in zero emission seals, providing the highest integrity wellbore barriers for every stage of the well lifecycle.

isol8’s vision is to set the new global standard in zero emission wellbore isolation products to maximise client value and radically reduce costs.

Relative Business Impact