Real-time geosteering.
Live in your browser.
No install.
GeoMaster streams live WITSML and ETP data from your wellsite directly into a collaborative cloud workspace — so your drilling engineer, geologist, and directional driller work the same live section, wherever they are. No Petrel license. No IT project. No six-month implementation.
Most geosteering software was built
for the desktop era.
GeoMaster was built for the cloud-and-collaboration era — while keeping the standards compliance (WITSML 1.4.1.1, WITSML 2.0 ETP) that your data infrastructure requires.
Live ETP streaming
Your well data arrives in the browser in real time — not batch-imported hours later. GeoMaster's WITSML Hub handles SOAP validation and ETP 1.x streaming with encrypted credentials and raw data preserved in cloud storage.
Calculation depth that matters
A typed unit-of-measure registry, 18 specialised calculation builders, and a contract system that enforces data quality before a number reaches your screen. The kind of engineering that matters when a TVD error costs $500k.
Collaborative by default
The drilling engineer onshore and the geologist at home see the same live section, the same formation tops, the same deviation alerts — in real time, no emailing screenshots. GeoMaster's workspace is built for distributed teams from day one.
AI field intelligence on demand
GeoEngine searches open geological sources and synthesises a structured field report — formation, reservoir, drilling challenges, and geosteering notes — for every project. Your team arrives at each well already briefed.
Platform Modules
Six integrated modules — built to work together, not bolted on.
Geosteering Workspace
Live trajectory display, formation tops, deviation monitoring — the command centre for the geosteering workflow.
DrillTracker
Plan vs. actual monitoring across 3D, 2D plan, and 2D section views. DLS via Minimum Curvature. Configurable deviation alerts.
LookAhead
Ahead-of-bit geological prediction. Predicted formation depths, TST/TVT, uncertainty envelopes, and confidence scores — updated on every new survey.
WITSML Integration
Standards-compliant ingestion: WITSML 1.4.1.1 SOAP, WITSML 2.0 ETP 1.x real-time streaming, LAS 2.0, Petrel format, CSV.
GeoEngine
Multi-agent AI assistant with field intelligence synthesis and context-aware conversational analysis grounded in live well data.
Collaboration
Real-time shared workspace — multiple team members on the same live section, anywhere in the world.
Domain experience is not optional
in this market.
Greenstone's founding team brings 15+ years of operator-side experience and a combined €50M+ track record in oil and gas contracts. We have sat in the drilling cabin, argued with MWD tools at 3am, and built workflows around the same software we are now replacing.
GeoMaster is not a fintech team's attempt at oil and gas. It is an oil and gas team's deliberate decision to build better software — with the engineering rigour to back it up.
Run us alongside your current
workflow. No risk.
We offer a structured shadow pilot on a single well: your live data, our platform, running in parallel with your existing tools. You compare the outputs. No operational dependency, no IT commitment, no contract until you've seen it work on your data.
Most pilots are up and running within one week of kickoff.
Available to operators and directional drilling companies with active WITSML-compatible MWD/LWD toolstrings. Pilot slots are limited.