Petrophysicist

This role evaluates the nature and distribution of rock properties and formation fluids across the life cycle of our clients’ reservoirs — from log analysis and core data through to the models that inform reserves and development decisions. We’re looking for rigorous petrophysical judgment paired with real versatility: someone who tracks new interpretation methods and technologies as closely as they apply proven ones, and who’s ready to help bring AI-assisted tools into how petrophysics gets done at Ad Terra.

What You'll Do

Data acquisition:

Design well data acquisition plans

Adapt well-log and data collection methods

Data processing:

Define suitable well measurements and data-processing methods

Prepare and process well data for petrophysical interpretation

Load, gather, transfer, and organize well data

Conduct quality control of data

Populate and maintain well databases

Data interpretation:

Conduct detailed analysis of wireline logs, core data, and seismic attributes

Build and develop petrophysical and geo-mechanical models

Perform volumetric calculations to estimate reserves and resources

Process and interpret borehole imagery

Conduct simulations to model fluid behavior

Develop and improve techniques for formation evaluations from cores and cuttings

Describe log-derived mechanical properties

Characterize conventional and unconventional resources

Resolve interpretation issues

Run forecasts

AI & Digital Tools:

Apply and help develop AI/ML-assisted log QC, facies prediction, and automated petrophysical interpretation workflows

Evaluate and pilot emerging AI tools (e.g., automated log correlation, anomaly detection) to improve interpretation efficiency

Contribute petrophysical domain expertise to Ad Terra's digital subsurface intelligence initiatives

Projects:

Complete tasks in areas of expertise

Document progress, setbacks, and new processes

Establish clear and relevant timesheets

Reporting:

Generate and write reports, create maps, tables, figures, and summaries

Review documents, studies, models, and reports prepared by peers

Report results to managers, clients, partners, etc.

What You'll Bring

University degree (MSc or PhD) in Geoscience, Petroleum Engineering or a related field

Experience as a Petrophysicist (2-5 years)

Minimum 2–5 years of hands-on Oil & Gas industry experience (exploration, development, or production) — mandatory

In-depth knowledge of petrophysical principles and practices

Proficient with petrophysical programs such as Petrel, Geolog, Techlog, etc.

Comfortable working with and developing AI tools (e.g., Python scripting, ML-assisted log QC or facies prediction) to support and automate petrophysical interpretation

Good understanding of the oil and gas industry

Familiarity with PETRONAS Technical Standards (PTS) and the Malaysian upstream regulatory framework is an advantage; professional body registration a plus

Excellent communication and presentation skills

Strong numerical and literacy skills

Systematic and methodical approach

Able to work efficiently under pressure

Rigor and organization

Proficient with Microsoft Office Suite

Fluent in English (excellent verbal and written proficiency)

What We Offer

Permanent, full-time local contract with statutory EPF / SOCSO / EIS contributions

Medical and insurance coverage; competitive annual leave

Exposure to international multi-resource projects across Ad Terra's platform (Europe, Canada, Chile, Cyprus, Asia-Pacific)

Thank you for considering joining our team. We look forward to reviewing your application! To apply, please submit your CV and a cover letter outlining your relevant experience