Processing & reprocessing
Workflows for modern and legacy data, from signal conditioning to migration preparation.
Deghosting, designature, SRME, IME, Radon demultiple and regularisation.
Independent seismic consultancy
Clarity beneath
complexity.
Seismic processing, velocity model building and depth imaging. Hands-on technical support from first tests to final delivery.
Discuss your project15+ years of experience · UK based, working internationally
Services
Technical support across the seismic workflow
Marine and land. 2D, 3D and 4D. Focused technical input or project leadership.
Velocity model building
Models guided by gathers, horizons, wells and geological understanding.
Reflection and refraction tomography, anisotropy and full-waveform inversion.
Depth imaging
Migration design and QC focused on the structural problem and imaging objective.
Kirchhoff PSTM and PSDM, RTM, RMO analysis and image QC.
Technical assurance
Independent technical oversight and clear communication through each project stage.
Workflow reviews, tender support, contractor supervision and project leadership.
Selected experience
Projects and scope
Marine 3D
Processing · Velocity models · PSDM
Legacy survey reprocessing
Rebuilt the workflow from field data through broadband conditioning, demultiple, regularisation and depth imaging for a challenging vintage dataset.
Regional 2D
FWI · Anisotropy
Multi-stage model building
Combined refraction and reflection updates with anisotropic control to improve the velocity model and image positioning.
Multi-survey delivery
Project leadership · Technical QC
Leading distributed teams
Coordinated technical teams, client decisions and quality control across concurrent processing projects.
Experience gained across Yury’s career. Project details are anonymised for client confidentiality.
About SigSeis
Work directly with Yury Stepanov
SigSeis is an independent geophysical consultancy led by Yury Stepanov, a processing and imaging geophysicist with more than 15 years of international project experience.
His experience covers marine and land data, time and depth imaging, model building and technical project leadership.
A practical approach
Agree the imaging objective, test the key decisions and review the results together. Clear QC and direct communication throughout.
Let’s discuss your project
Send a brief outline of your data, objective and timeline.