BIROVA

Applications

One simulator, many subsurface problems.

Permeon began as a GPU-native black-oil simulator and now spans the energy-transition subsurface: geothermal, carbon storage, geomechanics, and unconventional reservoirs — all on the same Eclipse-compatible, fully-coupled engine.

Geothermal & Supercritical

Doublets, direct-use, flash power, EGS, and supercritical.

How long until the cold front reaches the producer? How should the doublet be spaced to protect the resource? Will a high-enthalpy well flash to steam — or go supercritical — and how much power can it deliver?

What Permeon models

  • Low-enthalpy brine doublets for district heating / direct-use — thermal-breakthrough timing and the retarded cold front (thermal "protection").
  • High-enthalpy water–steam flash through to supercritical (IAPWS-IF97 Region 3, valid beyond the critical point) with implicit steam wells — on CPU and GPU, with MPI scaling.
  • Saline supercritical (H₂O–NaCl) for IDDP-class targets: salinity-shifted critical point, halite precipitation and injectivity decline (experimental).
  • Enhanced-geothermal (EGS) fractured wells and doublets.
  • Cold-reinjection thermal stressing coupled to the geomechanics (THM).

Validation: Validated against common commercial and research codes and analytic thermal-front solutions; the supercritical GPU flash matches the CPU result.

THERMALH2OSTEAMSupercriticalEGSTHM

Carbon Capture & Storage (CCS)

CO₂ injection, plume migration, and storage security.

Where does the CO₂ plume go? How much can be stored before pressure limits are reached? Is the caprock stress state safe under injection?

What Permeon models

  • CO₂–brine thermodynamics: solubility (Spycher-Pruess), density and viscosity across storage conditions (CO2STORE / SALINITY).
  • Plume migration, dissolution trapping, and reservoir-pressure management.
  • CO₂-plume geothermal (CPG): recovering heat while storing carbon, with a fully-coupled (p,T) energy solve.
  • Injection-induced stress change on the caprock and faults (coupled geomechanics).

Validation: CO₂–brine thermodynamics validated against common commercial and research codes; black-oil PVT synthesized from the thermodynamic core.

CO2STORECPGGeomechanics

Reservoir Geomechanics

Compaction, subsidence, and induced-seismicity risk.

How much will the field compact and the surface subside as it depletes? Is the stress change on a fault approaching reactivation? What does cold injection do to the stress state?

What Permeon models

  • Poroelastic compaction drive wired directly into the flow (a single GEOMECH keyword).
  • Surface subsidence over the full footprint (over/under-burden deform passively).
  • 3-D MPSA stress field; thermo-poroelastic stress for cold-reinjection (THM).
  • Two-way feedback: deformation updates porosity (and, for stress-sensitive rock, conductivity) back into the flow.

Validation: Mechanics validated against the Terzaghi and Mandel analytic consolidation solutions.

GEOMECHSubsidenceTHM

Unconventional & Fractured

Shale depletion with stress-dependent conductivity.

How fast does fracture conductivity degrade as the well draws down and effective stress rises? How do natural and hydraulic fractures contribute to recovery?

What Permeon models

  • Stress-dependent transmissibility from the computed stress field (exponential effective-stress law) — the depletion-driven permeability loss of fractures.
  • Pressure-driven rock-compaction tables (ROCKTAB / ROCKCOMP), reversible & hysteretic for permanent fracture closure.
  • Naturally-fractured dual-porosity / dual-permeability (matrix–fracture transfer).
  • Explicit hydraulic fractures via local grid refinement.

Validation: Stress-conductivity law unit-tested; dual-porosity transfer mass-conserving and validated against physics-based reference cases.

DUALPOROROCKCOMPStress-PermLGR

Heavy Oil & Thermal EOR

SAGD and steamflood for viscous and heavy-oil recovery.

How does the steam chamber grow, and when does steam break through to the producer? How much does heating cut the oil viscosity, and what is the steam–oil ratio?

What Permeon models

  • Steam-chamber SAGD — true oil + water + steam, with implicit steam wells and buoyant chamber growth.
  • Pressure-driven steamflood with caprock heat loss and producer steam-rate control.
  • Temperature-dependent oil viscosity (OILVISCT) and injected-steam quality (WINJQUAL); three-phase Stone II relperm.

Validation: Validated against analytic theory (Butler) and the SPE4 comparative problem. CSS (cyclic steam) is on the roadmap.

SAGDSteamfloodOILVISCTThermal

Conventional Oil & Gas

Field simulation, history matching, and recovery optimization.

The core workflow: match historical production, forecast recovery, and optimize waterflood / WAG / aquifer-supported depletion — on GPU, at speed.

What Permeon models

  • Three-phase black-oil (dead/live oil, dissolved gas, wet gas) with Stone I/II relperm and WAG hysteresis.
  • Analytic & numerical aquifer drive; multi-segment, VFP/THP, and group-controlled wells.
  • Corner-point grids with faults, pinchouts, and NNCs; Eclipse-compatible .DATA in/out.
  • Ensemble runs for history matching and uncertainty quantification.

Validation: Every black-oil capability is validated against common commercial and research codes, with a reproducible validation report.

Black-OilAquifersWellsHistory Match

Grounded in validated physics.

Every application above maps to a concrete, tested capability — not a brochure claim. See the physics in detail, or ask us for the validation reports: Permeon is validated against common commercial and research codes and analytic solutions.

Explore the features →Request the validation reports →

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Replace overnight CPU runs with minutes-long simulations. Start with $10 of free credit, or talk to us about running Permeon on your own hardware.

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