Our Team
We are a team of 12 qualified data analysts located in Aberdeen, Houston and Doha with more than 150 years of combined experience.
We deliver fast, impartial and accurate answers that offer valuable insight into your wells and reservoirs.
Be it increasing your hydrocarbon recovery, finding bypassed reserves or surveying the integrity of your assets, ANSA is your digital oilfield partner.

Maurillio Addario
ANSA Service Delivery Manager
Maurillio Addario
Maurillio leads the ANSA team and has a wealth of experience in cased hole logging, data acquisition, data analysis, well integrity and product development. He joined READ in 2007 as a Well Integrity Analyst and played an integral role in establishing ANSA’s data analysis and interpretation services.
During his career spanning over 10 years with READ, Maurillio has also gained experience as a Development Engineer and Senior Technical Manager. Previously, Maurillio held software developer and systems engineer roles with organisations in his native Brazil. He holds a BSc in System Analysis and an MSc in Information Engineering. Maurillio is based in Aberdeen.


Chee-Kong Chen
Senior Cased Hole Analyst
Chee-Kong Chen
Chee-Kong is a Senior Cased Hole Analyst/Petrophysicist based in Aberdeen and a specialist in array production logging, with experience across all cased hole tools. His expertise supports all ANSA services and he also provides bespoke training and consultancy for various clients.
Before joining READ, Chee-Kong held key positions across the industry with operators and service companies in Asia, Africa and Europe. He has a Bachelors Degree in Chemical-Gas Engineering from Universiti Teknologi Malaysia.


Joseph Guyan
Senior Cased Hole Analyst
Joseph Guyan
Joseph is a Cased Hole Analyst with more than 10 years’ experience in reporting on caliper and thickness measurements, cement inspection and production logging. Throughout his career with READ, Joseph has supported pre-job preparation and planning, fast turnaround analyses, staff mentoring and supervision, customer training and business development.
Prior to joining READ, Joseph worked in a similar role with a major global energy services company. He is based at our Aberdeen offices.


Ahmed Friha
Senior Cased Hole Analyst
Ahmed Friha
Ahmed joined ANSA in September 2019 as a Senior Cased Hole Analyst responsible for providing independent and expert data analysis and interpretation to our customers. Ahmed has 10 years of experience in reservoir engineering, production logging and well integrity evaluation.
Before joining READ he worked all over the world with leading oil and gas service companies, and also previously worked with us from 2009-2012 as a senior log analyst supporting our clients with PLT interpretations. Ahmed has an MSC in Petroleum Economics & Management from the French Petroleum Institute and a Bachelors Degree in Petroleum Engineering from the National Institute of Hydrocarbons.
Before joining READ he worked all over the world with leading oil and gas service companies, and also previously worked with us from 2009-2012 as a senior log analyst supporting our clients with PLT interpretations. Ahmed has an MSC in Petroleum Economics & Management from the French Petroleum Institute and a Bachelors Degree in Petroleum Engineering from the National Institute of Hydrocarbons.


Jenni Michie
Cased Hole Analyst
Jenni Michie
Jenni is an ANSA Cased Hole Analyst based in Aberdeen. She works with clients all around the world providing data analysis and interpretation for well integrity, including processing caliper data, cement bond logs and magnetic thickness tools. Jenni joined READ in 2013 as a trainee analyst and has a BSc in Chemistry at the University of Aberdeen.


Tim Farrar
Cased Hole Analyst
Tim Farrar
Tim joined the ANSA team 2012 and has a gained a wealth of experience in well integrity data analysis and interpretation. He handles data from a variety of integrity evaluation tools including MFC, RBT, ABI-43, MTT and MTD. Prior to joining ANSA, Tim graduated from Edinburgh University with a BSc in Geophysics.


Dave Stewart
Log Analysis Advisor
Dave Stewart
Dave has been part of the ANSA team in Aberdeen for nearly 30 years and has progressed through a number of senior positions including Operations Manager, Business Manager, Technical Manager and ANSA Manager. Now semi-retired, Dave works as a cased hole log analysis advisor, supporting ANSA’s well integrity and production logging analysis and interpretation activities.
Before joining READ, Dave spent 11 years with one of the world’s leading oilfield services providers and has a BSc (Hons) in Electronic Engineering.


Craig Lamont
Cased Hole Analyst
Craig Lamont
Craig is our Cased Hole Analyst – In Charge based in the Middle East and heads up the ANSA team in Doha, Qatar. Having initially joined READ in 2012 as a trainee well integrity analyst, his main focus today is supporting a key regional oil and gas operator, providing both well integrity and production log analysis. Craig has a BSc in Chemistry from the University of Aberdeen.


Jeena John
Cased Hole Analyst
Jeena John
Jeena is an experienced Cased Hole Analyst based in our Doha, Qatar office. Day-to-day Jeena is involved with processing and interpreting data for well integrity and production logging, including quality control and final report compilation and presentation. Jeena is qualified in computer science and engineering and prior to joining ANSA she worked as a production engineer with a leading global energy services provider.


Cory Waldrop
Lead Data Analyst
Cory Waldorp
Cory is our Lead Data Analyst based in Houston and during his 11-year analysis career, he has analysed more than 1500 caliper logs totaling over 11 million feet of analysed data. Cory plays an integral role in developing ANSA’s proprietary data preparation, processing and 3D data viewer software, and serves as the trainer for new analysts. He has a Bachelors of Business Administration from the University of Houston.


Hongying Yang
Programmer - Data Analyst
Hongying Yang
As the ANSA Programmer Analyst based in Houston, Hongying designs, implements, develops and maintains our proprietary software suites which are used for Multifinger Caliper data preparation, analysis, report generation and data visualizations, and applications/utilities for Magnetic Thickness Tool data analysis. During her 12-year analysis career she has analyzed millions of feet of log data and delivered hundreds of reports, and works with clients on projects such as subsidence issues and data integration.
Before moving to the US, Hongying worked for the Institute of Physics at the Chinese Academy of Science. She majored in Material Science and Engineering at the University of Electronic Science & Technology of China and Computer Science at Texas State University.
Before moving to the US, Hongying worked for the Institute of Physics at the Chinese Academy of Science. She majored in Material Science and Engineering at the University of Electronic Science & Technology of China and Computer Science at Texas State University.


Arun Neeliyath
Technical and Administrative Assistant

Jeniffer Leyes
Trainee Cased Hole Analyst
Jeniffer Leyes
Jeniffer is based in Aberdeen and performs analysis and interpretation of cased hole data in line with client objectives and READ Cased Hole’s high standards of service. She began her career in the drilling sector of the oil and gas industry, first as a Field Measurements Engineer and then as a Drilling Engineer.
Jeniffer has several years’ field and project planning experience and holds a degree in Electronics and Automation Engineering as well as an MSc in Petroleum Engineering.

Fast Data Delivery
Our Fast Turn Around (FTA) service delivers critical information in a matter of hours.
Training Courses
We offer comprehensive training in production log analysis, well integrity and reservoir evaluation.
CONTACT US
Viking House, 1 Claymore Avenue
Aberdeen Energy Park
Aberdeen AB23 8GW, UK
T: +44 (0)1224 336600
F: +44 (0)1224 336611