Oil & Gas Industry Solutions

Integrity and safety engineering for upstream oil & gas operators managing brownfield assets, hazard study drift, and reliability gaps.

INDUSTRIES NAVIGATION

Moving your facility from reactive maintenance to Predictive Integrity using AI-driven data modeling.

Why Oil & Gas Operators Need Engineering Strategy?

Upstream risk rarely comes from a single design-basis event, it builds up gradually, as brownfield assets drift from their original hazard studies through years of modification, especially when ownership changes hands and institutional knowledge doesn’t transfer with it. Pure Integrity helps operators close that gap before it becomes a compliance or incident finding.

Our Approach for Oil & Gas

Risk Profile

Brownfield production assets with layered modifications over field life. Risk is not a single design-basis event its the cumulative drift between the original hazard study and what’s actually installed and operating today, compounded when ownership changes hands & institutional knowledge doesnt transfer with it.

Standards Applied

IEC 61511 (SIL determination/verification), ISO 14224 (equipment reliability data classification) & HAZOP revalidation practice per CCPS guidance.

Typical Client Outcome

HAZOP nodes revalidated against latest industry best practice, incorporating lessons learned, improved asset register completeness, FMEA-driven maintenance tasks that shift the plant from time-based to risk-based maintenance.

Common Challenges Across Industries

Services

Pure Integrity provides a full range of process safety, functional safety, and asset integrity services to support oil & gas operators at every stage of the asset lifecycle.

HAZOP / HAZID Consultant

Identifying process hazards and operability issues before they become incidents.

Explore Service

SIL Determination & Verification

Establishing and verifying safety integrity levels for critical safety instrumented functions.

Explore Service

Risk Based Inspection (RBI)

Prioritising inspection effort based on risk, criticality & failure consequence.

Explore Service

Asset Integrity

Supporting safe, reliable, and fit-for-service assets throughout their operating life.

Explore Service

Functional Safety

Ensuring safety instrumented systems perform reliably across their full lifecycle.

Explore Service

CHALLENGES WE SOLVE FOR OIL & GAS

HAZOP Revalidation Gaps on Brownfield Assets

Hazard studies done years or decades earlier no longer reflect the plant's actual configuration. We revalidate them, closing the gap between the as-designed and as-operated basis before it becomes a compliance or incident finding.

Asset Register Discontinuity After Ownership Transfer

Incoming operators often inherit incomplete or inconsistent equipment records. We rebuild a trustworthy baseline register the precondition for any reliability or safety work that follows.

Asset Registers Not Structured to Support Reliability Analysis

Legacy registers are typically built ad hoc rather than to a recognised taxonomy. We standardise to ISO 14224, enabling FMEA and failure-data analysis a flat equipment list can't support.

Process Safety and Reliability Work Streams Running in Isolation

HAZOP/LOPA and FMEA/asset register work are often owned by separate teams with separate assumptions. We take a combined approach that ties protection layer credit to equipment reliability data from the outset.

Justifying Continued Operation Beyond Original Design Life

Assets approaching or past their design life need a structured Asset Life Extension (ALE) basis, not an assumption that past performance guarantees future integrity. We support ALE through multi-disciplinary assessment, identifying the additional inspection, integrity, or safeguard measures needed to justify safe operation into the extended period.

OUR METHODOLOGY

Johan Andak

Managing Director
Pure Integrity Sdn Bhd

Johan Andak is a process safety and operations specialist with decades of experience in the oil and gas, petrochemical, and energy sectors. As Managing Director of Pure Integrity, he provides strategic and technical leadership in process safety, functional safety, and risk assessment, supporting major projects across Southeast Asia, the North Sea, West Africa, Brazil, and Australasia.

Education & Certificate

Who We Work With

We have worked closely with many local and multi-national companies in Malaysia as well as overseas to fulfill their specific needs. Through close collaboration we have helped clients deliver safer, more reliable, and cost effective operations.