How Rita Uganden-Teryila Is Driving Production Enhancement in Nigeria’s Brownfield Playbook

By Adedayo Akinwale

At a time when Nigeria is stretched to meet its OPEC production quota, hovering around 1.3 to 1.5 million barrels per day against a target of over 1.7 million, the conversation around growth in the upstream sector is increasingly shifting toward new discoveries.

Across the Niger Delta, a significant share of producing assets are mature fields, many of them constrained by years of mechanical failures and requiring intervention strategies. Industry estimates suggest that as much as 20 to 30% of Nigeria’s installed production capacity remains trapped in such underperforming wells.

For the last 7 years, Rita Uganden-Teryila has supported several of the low-producing fields across OML 30, 119, 123 and 124 to restore a cumulative 30,000 BOPD to Nigeria’s production quota, equivalent to roughly 2% of national output at current levels, translating into hundreds of millions of dollars in annual value. Beyond execution is the methodology of planning and execution, which Rita has led her team to achieve across these fields, designed specifically for brownfields optimisation and for the structure that exists in operating companies. Rita brings systems and integrated project engineering to brownfield execution

“These wells are not just underperforming, they are constrained by layers of technical complexity that require targeted, data-driven intervention, which begins from the planning stage”, she explains. “We have achieved success across these because of the application of an integrated project methodology developed in-house with experts. We can diagnose, you diagnose, propose solutions, sequence and intervene with precision.” Project by Project, building the data bank for well information, which is critical to repeatedly provide precision on the next intervention

Her methodology combines well diagnostics, data construction for missing gaps in identified wells, and failure-mode mapping to identify the repeated and high-ranking constraints to engineering solutions. Specialised in interventions requiring downhole tools, production performance monitoring and matrix improvement. In one instance, she engineered the engineering toolstring and procedure for the removal of a 125-foot stuck fish, an operation that typically results in prolonged downtime or well abandonment. Intervention restored the well to full productivity of 1500bopd, unlocking immediate revenue streams.

“We approach each well like a surgical case,” she says. “The objective is to explore production restoration, with minimal time to restore production, but to stabilise and extend the life of the asset.”

The Economics of Recovery

In a capital-constrained environment, the economics of brownfield optimisation are increasingly compelling.

Industry benchmarks show that bringing a new offshore well online can cost between $20 million and $40 million, with lead times extending several years. By contrast, targeted well interventions can deliver production gains at a fraction of that cost, and within weeks.

Rita’s interventions have generated up to $1.8 million in daily revenue at peak performance, underscoring the return on optimisation as a strategic lever.

“In a volatile market, efficiency becomes your competitive advantage,” she notes. “The question is no longer just about finding new reserves—it’s about unlocking the value in what you already have.”

This shift is particularly relevant for Nigeria, where declining output has been driven as much by operational inefficiencies as by structural constraints.

Local Content as Engineering Capability

A critical dimension of Rita’s work lies in advancing local engineering capacity.

As a founding engineer with a downhole-tool provider, by engineering successful downhole tools campaigns within intervention projects, she has contributed to reducing dependence on foreign service providers, particularly in larger-sized intervention tools like 27/8 – 51/2” tool strings to specialised equipment to manage and test such toolstrings, which often come with high costs and long mobilisation timelines.

“Local capability changes everything,” she says. “It reduces turnaround time, lowers cost, and gives operators more control over execution.”

Nigeria’s local content framework has long aimed to increase domestic participation in the oil and gas sector, but execution gaps have persisted. By embedding technical expertise within local systems, engineers like Rita are helping to bridge that gap—not just in policy, but in practice.

A Systems Mindset Across Industries

Rita’s career trajectory, spanning upstream engineering and data systems governance, offers a broader lens on how complex systems are managed.

Currently a graduate researcher at MIT and with prior experience as an Engineering Program Manager at Apple, she applies the same systems-thinking principles across domains: diagnose inefficiencies, optimise processes, and design frameworks that scale.

“The common thread is complexity,” she explains. “Whether it’s a well or a data system, you’re dealing with interconnected variables. The goal is to create clarity, eliminate friction, and improve performance.”

This cross-disciplinary perspective is increasingly relevant in an era where digital tools, data analytics, and artificial intelligence are reshaping industrial operations.

Redefining the Future of Production

Nigeria’s oil and gas sector is at an inflection point.

With global capital becoming more selective and energy markets increasingly volatile, the ability to maximise existing assets is becoming just as important as expanding reserves.

For Rita, the future of production lies in rethinking how value is created.

“Brownfield assets are often seen as liabilities,” she says. “But with the right engineering approach, they can become some of your most reliable and profitable assets.”

Her work suggests that the next phase of growth in Nigeria’s upstream sector may not come from new frontiers, but from a more intelligent application of engineering to existing ones.

In that sense, the industry’s biggest opportunity may not be beneath unexplored ground, but within the wells it already owns.