Energy · Downhole Systems

Geopolymers & Well Sustainability

Cement cracks, shrinks, and corrodes in the deep, hot, chemically aggressive environments that define modern energy wells. Green Horizon replaces it with an anhydrous geopolymer annulus and geoceramic cladding engineered to bond permanently to the formation — for wells that stay sealed for their full design life.

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Geopolymer and geoceramic well barrier system
The Material System

An annulus that bonds to the rock.

Our two-part barrier replaces brittle cement entirely. An anhydrous geopolymer annulus carries the structural and hoop load and insulates the formation, while a geoceramic-clad casing stops corrosion from both sides. Together they form a monolithic seal that fuses to the formation and holds for the life of the well.

  • 8-mil geoceramic cladding for internal and external corrosion protection
  • 4.5" anhydrous geopolymer annulus for structural and hoop strength
  • Geopolymer fused directly to the formation — "the petrified bond"
  • Insulates the formation while sustaining high-velocity heat extraction
Casing Detail

Three barriers, one monolithic system.

BarrierSpecFunction
Steel substrateStructural casingPrimary load-bearing pipe body
Geoceramic coating8 mil minimum thicknessCorrosion and chemical-attack protection, internal & external
Geopolymer annulus4.5" anhydrousHoop strength, formation insulation, permanent bond
Flagship Application

See it proven at the Event Horizon Platform.

Our geopolymer-geoceramic system is deployed in the most demanding well there is — a closed loop reaching 400 °C supercritical rock at ~20,000 ft.

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Why Geopolymer over Cement

Built for heat, chemistry, and time.

No shrinkage cracking

Anhydrous chemistry avoids the hydration shrinkage and micro-annular gaps that compromise cemented wells.

Thermally stable

Holds integrity at supercritical temperatures where Portland cement degrades.

Lower carbon

Fly-ash and slag feedstocks cut embodied CO₂ versus conventional cement systems.

Seal your well for its full design life.

Request the geopolymer & geoceramic technical package, or talk to our downhole engineering team about your well program.

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