TGS Canada Leadership Team

We recognize that people are our most important resource and we’ve worked hard to create a positive team environment built on mutual trust & respect.  Below are brief introductions to some of the leadership team based in Calgary.


Andrew Dyke

Manager, Onshore & Offshore Sales

Andy is responsible for managing the TGS Multi-Client Onshore Sales and PD activities. Prior to his recent appointment, Andy was also heavily involved in Sales of the TGS East Coast Canada offshore assets including Well Data Packages. Andy has more than 29 years of industry experience, most of which involved both hands-on processing plus managing data processing centers in London, Tripoli, Johannesburg, Houston, Caracas, Perth and of course Calgary.


Josef Heim

Director, Canada Processing & Reservoir Services

Josef has over 25 years of experience in applied geophysics, including land and marine data processing, time and depth imaging, conditioning for AVO analysis and inversion.  He has provided technical leadership and expertise for data processing and integrated projects; interacting with R&D, implement new technology, and advising processing groups. He has experience working in Europe, Africa, Latin America and North America.


Mike Perz

Director, Technology & Innovation, MC Land

Mike’s 20 years of broad experience in the geophysical industry have spanned diverse areas including programming, research and development, management and technical marketing. Mike’s role at TGS is centered on the continued development of our high-level proprietary geophysical software as well as developing our people resources, and managing the growth and development of our global business.


John Ropchan

Director, Geophysical Operations

John started his seismic journey as a surveyor nearly 40 years ago. Using his seismic operations experience and expertise, he leads the Geophysical Operations Department, ensuring operational excellence and quality in our products in the safest possible manner. John is actively involved in the industry and is also a board member with CAGC. John is the Director of Field Operations Land with TGS Canada Corp, Managing Proprietary Acquisition projects, Multi-Client, as well as the Arcis QHSE systems and process.


Eric Ruygrok

Director, Onshore Seismic & Well Data

Eric rejoined TGS in 2018 and now stewards the Onshore Seismic and Well Data business interests in Canada which includes new investments and products as well as joint venture opportunities. Eric brings over 20 years of upstream and downstream oil & gas experience, in and across Canada, and ensures that all TGS Canada projects support the values, service and expectations which differentiate TGS as a world class provider of sub surface solutions.