Resume - Szilárd Dénes | solid.garden

Geologist with 10+ years in the hydrocarbon industry, combining analytical expertise with programming skills to solve complex problems and automate workflows. I am deeply engaged in programming and solving technical problems through code.

Freelance geoscientist consultant since 2022, worked with petroleum companies on hydrocarbon exploration. I am interested in joining forward-looking projects in GIS, geothermal, and advancing technologies.

Currently building our off-grid home at Gyűrűfű. The project applies the same project management and problem-solving approach I use in my technical workflows.

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Recent Projects

GeoHog — https://geohog.com

English-language geothermal reference for the Pannonian Basin — articles, well database, GIS layers, and a knowledge base. Founder.

Geology Skills

High level expertise

Seismic interpretation (2D-3D) AVO analysis Well Ties Geo-Modelling Petroleum System Analysis (PSA) Risking (source/seal/pathway/trap) Data integration Database building Time -> Depth Modelling GIS Workflows Structural & fracture interpretation Fault & fracture network modelling Geothermal exploration

Geoscience Software

Primary expertise

IHS Kingdom

Extensive experience in basic interpretation workflows including time-depth conversions, synthetic well ties, and volume calculations. Proficient in professional data loading and QC procedures, well data management, and attribute calculations. Conducted AVO analysis on Pre-Stack data and generated prospects based on analogs from the same dataset, ensuring context-driven interpretations.

PaleoScan

Developed advanced skillset during the interpretation of a 500 km² Romanian 3D seismic dataset. Created horizon stacks and DRS surfaces to investigate geomorphology through actual interpreted horizons rather than just time slices. Applied spectral decomposition with RGB blending to delineate geological features (channels, lobes) and assess depositional environments. Performed alternative AVO analysis using crossplot toolsets to compare gas/oil analogues with prospects across multiple seismic attributes.

ZetaWare PSA Toolset

Used 1D modeling tool and hotspot data analysis for regional basin-scaled overviews on fluid types and temperature models. Applied 3D package to visualize petroleum system models and fluid distribution in relation to temperatures and horizons. Created hydrocarbon migration risk maps for both local prospect-scale and regional-scale interpretations, including major projects in the Derecske trough and Romanian EX-1 and EX-5 areas.

Petromod & Migris

Applied Petromod 1D modeling tool for dissertation work. Collaborated with Migris group from Norway using academic license to create hydrocarbon migration models for the Jászság Basin, developing expertise in modeling possible hydrocarbon migration pathways.

QGIS

Served as responsible person for GIS database management at OGD and SHPR companies. Produced professional maps using developed template systems and maintained SQL databases with regular updates. Performed standard GIS tasks including measuring, comparing, visualizing geological features, and coordinate conversions between different UTM zones.

Work Experience

2026

Exploration Geologist

2026-Mar — 2026-Apr

Folyópart Energia Kft

Structural and fracture interpretation of a fractured volcanic reservoir, mapping the fracture network that feeds the reservoir model.

  • Multi-attribute seismic facies analysis of the fractured volcanics.

Geoscience Consultant

2026-Feb — Present

SolServices

Structural interpretation of a geothermal play in the Pannonian Basin. Building the fault-and-fracture framework from seismic and wells, and depth-domain reservoir characterisation for the reservoir-modelling team.

  • Built the fault-and-fracture framework from 3D seismic and well control.
  • Mapped permeable fault corridors and reservoir geometry.
2024

Geoscience Consultant (periodic)

2024-Nov — Present

Mhyner Geoconsulting Kft

Periodic freelance contributions - providing specialized support for growing initiatives. Building a geological database from seismic and well data and performing semi-regional interpretation work.

Exploration Geologist

2024-Apr — 2024-Dec

Sand Hill Petroleum BV

Undertook a comprehensive interpretation of a new 500 km² 3D seismic dataset, delivering risk analysis, ranking, and peer review materials for multiple prospects.

  • Helped the systematic interpretation of a 500 km² 3D seismic dataset.
  • Performed quality control on seismic and gather data for accuracy.
  • Conducted AVO analysis in Paleoscan to evaluate hydrocarbon potential.
  • Prepared peer review materials, identifying and analyzing key prospect risks.
  • Evaluated and ranked 12-15 prospects based on hydrocarbon phase and volume.
  • Delivered detailed volume calculations for prospect assessment.
2023

Exploration Geologist

2023-Oct — 2023-Dec

O&GD Development Kft

Provided geological expertise and support in AVO analysis for evaluating multiple prospects.

  • Conducted AVO analysis on several prospects to assess hydrocarbon potential.
  • Collaborated with interpreters to provide geological insights and support.
  • Enhanced the geological understanding of prospects for decision-making.

Exploration Geologist

2023-May — 2023-Oct

Sand Hill Petroleum BV

Managed data quality, AVO analysis, and geological interpretation for prospect evaluation and Peer Review preparation.

  • Cleaned and organized IHS Kingdom project data with consistent naming conventions
  • Executed AVO analysis on prospects including Pre-Stack and Post-Stack analysis
  • Conducted prospect comparisons with analogs to predict fluid types
  • Provided geological interpretation support including cross-sections and isopach maps
  • Executed detailed horizon and fault mapping at prospect scale
  • Contributed to Prospect Ranking and Peer Review preparation

Data Entry Specialist

2023-Apr — 2023-May

O&GD Development Kft

I worked on an IHS Kingdom project designed for data room usage, involving efficient and technical handling of datasets and software.

  • cleaning the project by removing non-relevant data (e.g., well data, cultural data, seismic data) outside the AOI
  • ensuring consistent naming conventions for horizons and grids
  • segmenting 3D and 2D seismic data according to block boundaries
  • organizing data into Collections for each prospect
  • composing comprehensive and searchable documentation within the framework of the data room presentation, emphasizing crucial information

Freelance Developer

2023-Feb — 2023-Jul

Geoszféra Kft

As a Developer at Geoszféra Kft. I am responsible for revisiting Excel VBA Addons created by a former colleague. My role involves reviewing and modifying the code to ensure that it is functional, efficient, and error-free. To help users understand how to use these add-ons, I also write documentation that explains the purpose, functionality, and usage of each tool.

  • I clean up the existing Excel add-ins to remove any unnecessary code, optimize performance, and make them more user-friendly. This involves restructuring the code, renaming variables, and adding comments to make it easier to read and understand.
  • If necessary, I also rewrite the add-ins in a more modern programming language, such as C#.
  • Throughout my work, I focus on delivering high-quality code and documentation that meets the needs of the end-users. By doing so, I help to ensure that our geotechnical engineering teams have access to the tools they need to do their jobs effectively.

Freelance Developer

2023-Jan — 2026-Jan

Geohisztor Kft

As a web developer at Geohisztor Kft, I design and develop their website from start to finish. We are partners and continue to work together.

  • Logo designed by me
  • UI/UX designed by me
  • Built with Astro, hosting and management
2022

Data Entry Specialist

2022-Nov — 2024-Apr

North American Helium

Periodical freelance contribution: I specialize in using IHS Kingdom Software to load 2D and 3D seismic surveys, load data, and perform data quality control. I have extensive experience in using IHS Kingdom Software and have developed expertise in data loading and quality control techniques.

  • loading 2D and 3D seismic surveys into Kingdom software
  • loading of 2D and 3D gathers
  • loading any kind of data
  • performing data quality control
  • converting coordinates from different UTM zones using QGIS

Freelance Developer

2022-Apr — 2023-Feb

Soler Partners Kft

I transferred a company's data, projects, and workflows from excel files and folders into the Odoo ERP (Enterprise Resource Planning) system. Besides, I built a VBA-based Excel program that generates documents with a given database and different PDF templates.

  • Email lead integration in the system
  • Writing workflow automation and data validations in Python
  • Creating custom reports in Odoo studio, using HTML and CSS
  • Database build and management
  • Python scripts to solve various problems in Odoo
2015

Exploration Geologist

2015-Jul — 2022-Sep

O&GD Development Kft

Detail-oriented geology work, with multidisciplinary approach to exploration from basin scale (PSA - Petroleum System Analysis) to seismic interpretation and prospect generation. High-level data integration, including wells, seismic and geochemistry. Everyday problem solving and workflow optimization at any level (geology, data, software).

  • Independently generated an inventory prospects, with several advanced to peer review stage and subsequent approval for drilling.
  • Handled levels of responsibilities far beyond my experience level
  • Seismic interpretation, prospect and lead generation plus basic geophysical work on Hungarian and Romanian assets in team
  • Completing Petroleum System Analysis (PSA) projects for the OGD's focus areas
  • Involved in international data rooms and License Round evaluations
  • Hydrocarbon migration modelling to address the migration risk in the prospect evaluation process
  • Data mining, various geodatabase building (excel VBA scripting and ArcGIS)

Field Geologist

2015-May — 2015-Jun

Geogold Kárpátia Kft

Fieldwork -> VES (Vertical Electric Surveying) study in NW Romania.

2014

Geologist

2014-Jul — 2014-Aug

Szekler Resources LTD

Technical work and support for a micropaleontological study.

Field Geologist

2014-Apr — 2014-Jul

SC Geosearch SRL

Fieldwork -> geotechnical drilling/surveying.

Certifications

Foundational C# with Microsoft

freeCodeCamp.org — Developer Certification from freeCodeCamp and Microsoft

View Certificate Download Certificate

Risk Analysis, Prospect Evaluation

Rose & Associates LLP, Budapest, Hungary

Geological Interpretation of 3D Seismic Data

RPS/Nautilus, Stavanger, Norway

Awards

Transylvanian Student's Scientific Conference

2nd place — "The macrofossils of the Brüll viewpoint"

POSDRU program

2nd place — "Mineralogical study of the Neogene hydrotermal mineralisation"

Education

MSc Geology of Sedimentary Basins

Babeș-Bolyai University · Thesis: "An approach on HC migration modelling for the Jászság-basin, Hungary" (PDF)

BSc Geology

Babeș-Bolyai University · Thesis: "3D modelling of Simonesti gas field, based on sequence stratigraphy" (PDF)

Languages

Hungarian

Native proficiency

Romanian

Working proficiency

English

Professional proficiency

Work Availability

Based in Gyűrűfű, Hungary, I work remotely with a full professional home office setup. My schedule is flexible—I can adapt to different time zones, join meetings as needed, and work beyond standard hours when projects require it. All workflows can be conducted online efficiently.

Testimonials

"I've worked with Szilard for 6 years at O&G Development. He wore many hats there and was very quick to climb learning curves."

"From the first time I met Szilárd, I knew he was a high performer. His dedication to completing assigned tasks, thinking on his feet and persistence in solving difficult problems made him an invaluable team member."