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Registered in England and Wales company # 03449181.
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© Copyright: Conwy Valley Systems Limited  2000 - 2025

Conwy Valley Systems Limited,

West Acre, Llys Helyg, Deganwy

CONWY LL31 9BN, United Kingdom.

VAT# GB 741 5190 48

A Geoscience Wales  founding member.

PETROG includes patent protected technology.

Testimonials

The following quotes have been reproduced with permission.

 "Yes, very happy. Particularly with the support when I needed things beyond the original spec! Sure, go ahead and use me as a reference."

- Stephen Lokier, Abu Dhabi Petroleum Institute

“This has been a great machine for us and a great classroom and research tool”

- Jeff Thole, Macalester College, St Paul, MI USA

“Everything worked perfectly with PETROG!
Thanks again for getting that update and transfer done smoothly!”

- Madeline S. Marshall, Ph.D.

Assistant Professor, Department of Earth & Environment, Albion College, MI USA 2024

“Thank you for the prompt responses to my numerous requests during installation.  Ricki just finished installation/training.  He did a very fine job working to answer our many questions and optimize the system for our anticipated needs.  I'll be recommending your product to the sedimentary petrographers I interact with in the U.S.”

- Jeff Trop, Presidential Professor of Geology & Environmental Geosciences,

Bucknell University PA USA

“Sorry for the delay in answering you […...] we were working on PETROG.
Everything is working ok. There is a difference between the old Swift and this new one.  It is like riding a bike and changing to driving an Aston Martin.”

- Octavio Ruiz, Ternium 2022

“I am extremely pleased with the stage, and can thoroughly recommend it. It has speeded things up no end, as well as making life that bit nicer when doing repetitive, mundane tasks like point-counting.”

- Emma Whear, Porescale Solutions (PetrogLite user)

“I have been using the set up for point counts in petrographic and heavy mineral thin sections. It has been working really well and I am eager to use it again. We really are pleased with the product here at the University."

- Annalize McLean, FGS,

Instructor II in Sedimentology, Stratigraphy, Petroleum Geology, Field Geology,

University of the West Indies

“We have been using PETROG to perform 500 point counts for each sample using the Gazzi-Dickinson method. PETROG has been a great productivity boon.”

– Marta Roigé Taribó, Departament de Geologia, Universitat Autònoma de Barcelona

“Thanks for your timely help on short notice.  All is good!”

- James Matthews PhD, Specialist Sandstone Reservoir Quality. TOTAL SA, 2020

“Hi Petrog team! I am very enthusiastic about the new set up - this will make me much more productive! Thank you very much!”

- Saturnina Henares Ladron de Guevara, PhD

Project Geoscientist–Reservoir Quality Specialist, PanTerra Geoconsultants B.V.

“Ricki Walker and Barrie Wells, both of Conwy Valley Systems, have my thanks for the opportunity to work with and develop the PETROG point-­counting system”

- Adam Sutton, Phd Thesis, University of Reading, 2018

“This has been a great machine for us and a great classroom and research tool. Many thanks for the quick responses and help.”

- Jeff Thole, Macalester College, MN, USA 2009