Instability in EPC Projects

A System That Starts Before It Is Fully Defined

In the EPC sector, delays and cost overruns are still commonly interpreted as deviations from an initially solid plan, almost as if they were anomalies caused by technical errors, operational inefficiencies, or coordination issues. This interpretation persists because it allows responsibilities to be isolated and each critical issue to be treated as a separate event. In practice, however, especially in the oil & gas sector, the problem runs much deeper and concerns the very way instability in EPC projects takes shape.

More and more frequently, procurement is initiated earlier than project maturity warrants, not as a strategic choice but because delivery times, component availability, and pressure on time-to-delivery leave little alternative. As a result, many decisions are made while the project is still only partially defined, meaning execution begins on a technical basis that is itself still evolving.

The outcome is a system that no longer builds from a stable configuration, but continuously redefines itself while construction is already underway. In this context, delays do not necessarily represent project failure; more often, they are the inevitable consequence of a structure that deliberately accepts operating under incomplete conditions.

When a Change Propagates Through the System

A recurring example involves gas systems designed around preliminary specifications for critical components such as PCVs or PSVs. In the early stages, these technical specifications are considered sufficient to proceed, often because long-lead items need to be locked in quickly. Later, however, operating conditions change, the client updates requirements, or suppliers modify available configurations. At that point, the issue no longer concerns simply replacing a component.

The change propagates through the entire system, forcing revisions to sizing, layouts, interfaces, and technical verifications at a stage when the project is already well advanced. Situations like these are not exceptions but structural dynamics. The modifications do not necessarily stem from engineering mistakes; they arise because the project continues to move forward while many of its fundamental conditions are still not fully consolidated.

In this scenario, the very concept of "error" becomes reductive, because the system itself implicitly accepts that certain decisions will be revised along the way. A sort of tacit balance emerges between the actors involved: work progresses despite the awareness that some interfaces will remain open, some responsibilities will only be partially defined, and part of the complexity will inevitably be transferred downstream.

Where Instability in EPC Projects Actually Begins

Real instability emerges primarily in the relationship between engineering and procurement, long before construction begins. On one side, procurement must anticipate decisions in order to secure equipment availability and timelines compatible with market demands; on the other, engineering still lacks a sufficiently stable framework to finalize the project coherently. This misalignment creates a technical perimeter that is sufficient to start activities, but not robust enough to prevent continuous revisions.

Complexity is not eliminated; it is displaced over time. When it resurfaces during execution, its impact becomes more expensive, slower to manage, and far more difficult to coordinate. This same misalignment also changes the nature of coordination between stakeholders. Historically, complex projects have always required mediation between disciplines, suppliers, and distributed responsibilities, but today coordination takes place while the system itself is still evolving.

The challenge is no longer simply aligning people or processes; it is maintaining coherence between decisions that may lose validity within a matter of weeks. The greater the number of stakeholders involved, the greater the likelihood that local modifications will trigger cascading effects that are difficult to control.

 

A Model That Adapts but Does Not Evolve

Despite this scenario, the operating model remains fundamentally unchanged. Large organizations continue to work through top-down structures and rigid contractual frameworks that struggle to adapt to the speed at which supply chains, technology availability, and market conditions now evolve. The system does not truly evolve; instead, it forces case-by-case adaptations in an attempt to absorb the instability generated by the surrounding context.

In this environment, the real competitive advantage no longer lies in completely eliminating risk — an increasingly unrealistic objective — but in recognizing in advance where the project is likely to lose coherence. Experience accumulated across similar projects makes it possible to identify recurring patterns: critical components that generate bottlenecks, interfaces that are likely to require revision, and specifications that will inevitably shift during execution.

This does not mean predicting the future deterministically, but rather recognizing systemic instability before it becomes an explicit problem. It also changes the role of engineering itself, which can no longer be limited to technical execution alone and must instead become the ability to interpret and govern relationships, constraints, and inconsistencies distributed across the entire project lifecycle.

Beyond the Concept of Delay

In light of all this, the very concept of delay takes on a different meaning. What is perceived as delay is often the inevitable consequence of a system that deliberately chooses to move forward before the project has reached full coherence, because time has become the dominant constraint over every other variable.

As long as this logic remains unchanged, projects will continue to evolve under conditions of partial definition, transferring complexity throughout execution and continuously self-correcting as work progresses. This is not a system that fails to function; it is a system designed to function this way.