Cloud geosteering.
In your browser.
No install.
GeoMaster® brings your well data into a collaborative cloud workspace, so your drilling engineer, geologist and directional driller work the same section, wherever they are. No Petrel licence. 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) that your data infrastructure requires.
Your WITSML data, on demand
Pull trajectory, log and mud log data from your WITSML 1.4.1.1 server whenever you need it, with encrypted credentials and the raw data preserved. Scheduled pulls and WITSML 2.1 / ETP streaming are in development.
Calculation depth that matters
A typed unit-of-measure registry, specialised calculation modules, 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 open the same project, the same section and the same formation tops, with no emailing of screenshots. GeoMaster's workspace is built for distributed teams from day one.
AI field intelligence on demand
GeoEngine searches oil and gas sources for the field of your well and writes a structured report on formation, reservoir, drilling challenges and geosteering notes, keeping only claims a source supports. Your team arrives at each well already briefed.
Platform Modules
Six integrated modules: built to work together, not bolted on.
Geosteering Workspace
Trajectory, logs, formation tops and GeoMatch interpretation with versions: the command centre for the geosteering workflow.
DrillTracker
The well against its plan: distance to plan, offsets, toolface, build and turn, bit projection and the steering required to get back on line.
LookAhead (in development)
Ahead-of-bit geological prediction with predicted formation depths and uncertainty. Not yet released.
Data import
WITSML 1.4.1.1 SOAP on-demand pulls, LAS 2.0 and CSV. WITSML 2.1 / ETP streaming is in development.
GeoEngine
The AI assistant in every project: answers from your own well data, field intelligence reports, and actions you confirm before anything is saved.
Collaboration
A shared workspace: team members work the same project and section, anywhere in the world.
Domain experience is not optional
in this market.
Greenstone's founding team brings 15+ years of field experience and more than €30M in oil and gas contracts secured, including €15M in directional drilling, much of it in complex, heterogeneous carbonate reservoirs. 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 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 WITSML 1.4.1.1 access or LAS exports. Pilot slots are limited.