Reservoir simulation · 0.91 (08/05/2026)

Reservoir concepts,
built at cloud speed.

Agentic AI builds, validates and iterates OPM Flow decks from natural language — so you stay in the engineering, not the syntax. Migrate E100* decks seamlessly. No install, no HPC queue.

Oil · Gas · Water · Geothermal · CO₂ Sequestration · H₂ Storage · Groundwater
early access
Invitation-only beta.
Contact mail@runspec.io to request your personal invite link.
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01 · Workflows

Three ways to build.
One platform.

Agentic AI prototyping, classic form-based modelling, or full keyword control — pick the path that matches your expertise. All three produce standard OPM Flow decks.

Three ways to build in RUNSPEC Positioning chart showing Agentic AI (high AI assistance, low domain knowledge), RUNSPEC (medium on both axes), and Keyword editor (low AI assistance, high domain knowledge), each with feature bullet points. Low High Low High AI assistance Domain knowledge Agentic AI Conceptual prototyping Natural language input Autonomous reasoning Concept to run: < 5 min RUNSPEC Classic modelling Form-based deck builder Grid · PVT · well tools Validated at every step Keyword editor Complex modelling Full keyword control Schema-aware editing Version-tracked edits All three paths produce standard OPM Flow decks — no translation layer, no lock-in
02 · Engine

OPM Flow,
cloud-native.

Decks run natively on a managed OPM Flow queue — no translation layer, no local install, no vendor licence.

OPM Flow latest
Black-oil Migrator built-in
Spectre — Agentic AI online
CCS & H₂ Storage supported
Geothermal supported
03 · Performance

OPM vs E100.
Same results.

Similar run time on SPE benchmarks and real-field models up to ~1M active cells.

04 · Cloud

Zero install.
No HPC queue.

No compile from source, no Linux VM, no FlexLM dongles, no sysadmin requests. Open the browser, build the deck, submit — runs on managed cloud compute, always the latest release.

Zero installationbrowser
On-demand computeauto-scales
Always up to datemanaged
05 · Migrator

Black-oil decks,
migrated in minutes.

Upload your existing black-oil DATA deck with all INCLUDE files. The Migrator parses every section, flags unsupported keywords with severity and suggests alternatives. Open the converted deck in the full keyword editor — syntax highlighting, dimensional validation, version-tracked user edits — then submit to the queue. Every user edit is traceable.

Try the Migrator
06 · Capabilities

Everything for a technical assessment.

Concept to forecast in one browser-based workspace.

Interactive Structure Maps
PVT correlations (Standing, Glaso, VB)
Corey Rel-Perm & Capillary Pressure
Wells module — LAS / .dev / tops ingest
Well Canvas correlation & depth match
Kriging property population (per K-layer)
Workbench — 2D / 3D / Statistics / Explorer
Well placement & scheduling
Production plots & annotations
History matching from CSV/Excel
CCS, H₂ & Geothermal workflows
07 · Interop

Plugs into your stack.

ResInsight · Petrel (file formats)
Python · Jupyter
Excel · CSV
GRDECL · UNRST · SMSPEC

08 · Scope

Black-oil first.
Honest about the rest.

RUNSPEC focuses on black-oil — the formulation that covers the majority of real-world studies. Compositional and thermal workflows aren't in OPM yet; we'll say so up front rather than paper over it.

09 · Benchmarks

Match on SPE &
Norne benchmarks.

Material balance, pressure matches and saturation fronts align closely across public benchmark cases. Parallel OPM Flow scales linearly on multi-core — no parallel-licence premium.

10 · Trust

Hosted in Germany.
Yours to keep.

ISO 27001-certified data centres. GDPR + BDSG protection. No US CLOUD Act exposure. Your reservoir models, production data and results stay under EU jurisdiction — critical for NOCs, JV partners and compliance.

Privacy policy
11 · Learn

Simulation
training course.

14 chapters — grid setup, PVT, saturation functions, well management, history matching and prediction. Built into the app, linked directly to Spectre and Runspec tools.

Start learning

Run your first deck in under 4 minutes.

Explorer tier is free forever — build decks, use Spectre AI, try the editor. No credit card.

Log in → Request invite