Facility modifications, upgrades & pipeline construction

Integrated EPCIC solutions for brownfield facility modifications, pipeline infrastructure, and energy transition projects — minimising production downtime while maximizing operational continuity across Nigeria's oil and gas landscape.

Full EPCIC capability
Live facility execution
2"– 48" pipelines
6–12hr emergency response
TDW & Fairtex partners

Overview

Complete EPCIC project delivery under one roof

From facility revamps, debottlenecking, and tie-ins to pipeline construction, rehabilitation, and CNG integration — our Brownfield & Projects Unit manages the entire project lifecycle. By combining engineering excellence with proven field execution capabilities, we help operators extend asset life, improve production efficiency, and ensure safe, reliable operations.

Greenfield & brownfield facility modifications and upgrades
Pipeline construction, replacement, and rehabilitation
Hot tapping and line stopping services
Intelligent pigging and pipeline cleaning
Pipeline integrity management solutions
Facility revamps and debottlenecking
CNG integration and associated infrastructure
Shutdown, turnaround, and tie-in execution
Facility services

Brownfield modifications & facility upgrades

We work on live operational facilities — not just planned shutdowns. Every modification is planned to minimise production impact and maximise safety.

Revamp & upgrade

Facility upgrades & revamp

We design and execute modifications that restore performance, extend asset life, and unlock new efficiencies — without shutting down the entire operation. Our approach includes detailed constructability reviews, SIMOPS planning, and phased execution strategies to ensure safety and operational continuity throughout.

Niger Delta experience

Flowstation modifications

We have direct experience modifying flow stations for the installation of metering systems, LACT units, autosamplers, and other process upgrades — including multi-station projects across the Niger Delta. Our brownfield engineering capability includes 3D modelling and simulation, clash detection, and detailed design for modifications on live facilities where accuracy is non-negotiable.

Debottlenecking

Debottlenecking

We conduct debottlenecking studies and implement solutions to remove process constraints, increasing throughput and optimizing facility performance without major capital expenditure.

Capacity

Capacity expansion

We enhance plant throughput through strategic modifications and equipment upgrades — without the need for complete facility replacement.

Engineering

Engineering & 3D modelling

3D modelling and simulation, clash detection, and detailed design for modifications on live facilities — where accuracy is non-negotiable.

Mechanical

Heat exchanger maintenance

Full heat exchanger maintenance including tube inspection, fouling removal, corrosion protection, leakage testing, reconditioning, and troubleshooting — on-site or at our service centre.

Pipeline services

Pipeline construction, integrity & maintenance

From pipeline laying to intelligent pigging, CMSL delivers full lifecycle pipeline solutions across swamp, land, and coastal terrains — from 2" to 48" diameter

Live pipeline works

Hot tapping & line stopping

We execute hot tapping and line stopping operations on live hydrocarbon and gas systems — including high-pressure gas pipelines — subject to engineering feasibility, integrity assessment, and regulatory approvals. For specialized hot tapping services, we collaborate with internationally recognized OEM partners TDW (T.D. Williamson) and Fairtex Group.

Integrity management

Intelligent pigging & pipeline integrity

We facilitate pipeline inspection using MFL pigs, UT pigs, geometry/caliper pigs, inertial mapping units (IMU), combination crack detection and corrosion assessment tools, and cleaning and gauging pigs. We engage specialised OEMs to ensure deployment of the most suitable inspection technologies in compliance with international pipeline integrity standards.

Testing

Hydro testing & leak repairs

Pressure testing of new and existing pipelines plus emergency and planned leak repair services — with rapid mobilization to minimize environmental impact and production loss.

Cold cutting

Cold cutting & scaffolding

Precision pipe cutting without heat, sparks, or flame — for work on live pipelines. Supported by heavy-duty scaffolding design, erection and dismantling. Thousands of tons of cuplock scaffolding inventory.

Critical lifting

Critical lifting

Precision lifting of heavy pipe sections, valves and equipment. All lifting equipment certified by third-party companies, with certified lifting engineers and specific lifting plans developed per job.

Earthworks

Pipeline earthworks

Trenching, backfilling, and reinstatement works for buried pipelines — including swamp and waterlogged terrain across the Niger Delta and coastal zones.

Why choose us

Why choose CMSL for facility modification & pipeline services

Full EPCIC capability

Engineering, procurement, construction, installation, and commissioning under one roof — one team, full accountability.

Live facility experience

We routinely execute brownfield modifications on operational plants with minimal or no production shutdown — SIMOPS experts.

Global OEM partnerships

TDW, Fairtex Group, and specialist integrity service providers — bringing international technology standards to Nigerian projects.

Certified lifting

Third-party verified equipment, certified lifting engineers, and project-specific lifting plans developed for every job.

Rapid emergency response

6–12 hours for locations within our operational coverage areas. 24–48 hours for remote locations requiring specialised resources.

Regulatory support

We support statutory permits, regulatory approvals, and stakeholder engagement — from documentation to government liaison.

FAQ

Frequently Asked Questions

1Can you execute modifications on a live facility without production shutdown?
Yes. We routinely execute brownfield modifications on live operational facilities with minimal or no production shutdown, depending on the scope and risk level of the work. Our approach includes detailed constructability reviews, SIMOPS planning, risk assessments, isolation procedures, and phased execution strategies to ensure safety, operational continuity, and asset integrity throughout the project lifecycle.
2Do you have in-house fabrication capability, or do you subcontract?
We operate a flexible execution model. Yes, we operate in-house fabrication and also render core project management, engineering coordination, construction supervision, QA/QC, and commissioning activities managed in-house. Well, fabrication may be executed through qualified partner workshops or approved subcontractors, depending on project size, specialisation, and location requirements. All fabrication activities remain under our strict quality, safety, and delivery oversight.
3How do you minimize operational disruption during execution?
We develop detailed execution methodologies aligned with plant operations, including phased tie-ins, offsite prefabrication, planned shutdown integration, and optimized work sequencing to reduce downtime and operational impact.
4Do you provide end-to-end project delivery?
Yes. We provide integrated services covering: Site survey and feasibility assessment Engineering and design Procurement support Construction and installation Testing and commissioning Documentation and project closeout This integrated approach helps improve coordination, cost control, and schedule performance.
5What is your typical project timeline from engineering to commissioning for a mid-size modification?
For a typical mid-size brownfield modification project, the timeline generally ranges between 8 and 24 weeks, depending on: Scope complexity Material availability Operational constraints Approval turnaround time Shutdown window requirements (if applicable) Our execution strategy emphasises early engineering definition and procurement planning to reduce schedule impact and ensure timely delivery.
6What industries do you primarily support?
Our brownfield experience spans: Oil & Gas facilities Process plants Utilities and power systems Industrial manufacturing facilities Infrastructure and support facilities.
7Can you work within existing facility constraints and outdated documentation?
Yes. Brownfield projects often involve limited space, aging infrastructure, or incomplete as-built documentation. We conduct detailed site verification, laser measurements where necessary, and engineering validation to minimise clashes and execution risks.
88. How do you manage safety during brownfield activities?
Safety is central to all brownfield execution activities. We implement comprehensive HSE plans, permit-to-work systems, job hazard analysis (JHA), SIMOPS coordination, toolbox talks, and strict compliance with client and industry safety standards to ensure incident-free delivery.
9What pipeline diameters and pressure ratings can you handle for construction and maintenance?
We possess the capability to execute construction, modification, repair, and maintenance activities on carbon steel and stainless-steel pipelines ranging from 2" to 48" diameter, including associated facilities such as manifolds, metering stations, valve stations, and process piping systems. Our engineering and construction teams are experienced in handling pipelines designed in accordance with ASME B31.3, ASME B31.4, and ASME B31.8 standards, with pressure ratings up to ANSI Class 2500 depending on project-specific design requirements and operating conditions.
10Can you perform hot tapping on high-pressure gas pipelines?
Yes. We are capable of executing hot tapping and line stopping operations on live hydrocarbon and gas systems, including high-pressure gas pipelines, subject to engineering feasibility studies, integrity assessment, operating parameters, and regulatory approvals. For specialised hot tapping and line intervention services, we collaborate with internationally recognised OEM partners such as TDW (T.D. Williamson) and Fairtex Group, ensuring compliance with global industry standards and best practices for safety, quality, and operational reliability.
11What intelligent pigging tools do you deploy, and do you own them or subcontract?
We facilitate pipeline inspection and integrity management using a wide range of intelligent pigging technologies, including: Magnetic Flux Leakage (MFL) pigs Ultrasonic Testing (UT) pigs Geometry/Caliper pigs Inertial Mapping Units (IMU) Combination Crack Detection and Corrosion Assessment Tools Cleaning and Gauging pigs. As a project execution company, we typically engage specialised OEMs and certified pipeline integrity service providers for intelligent pigging operations. This approach ensures deployment of the most suitable and latest inspection technologies while maintaining compliance with international pipeline integrity standards.
12What is your mobilization time for emergency leak repairs?
Our emergency response framework enables mobilisation within: 6 – 12 hours for locations within our operational coverage areas where manpower, equipment, and materials are readily available. 24 – 48 hours for remote locations requiring specialised resources, logistics support, or regulatory access approvals. The exact mobilisation period depends on site accessibility, security requirements, weather conditions, and the scope of intervention. Dedicated emergency response teams can be activated immediately upon notification.
13Do you handle pipeline permits and regulatory approvals, or does the client manage that?
We can provide comprehensive support for obtaining statutory permits, regulatory approvals, and stakeholder engagements required for pipeline construction, maintenance, modifications, and integrity management projects. Our support may include: Regulatory interface and documentation preparation Permit-to-work coordination Environmental and HSE compliance documentation Community and stakeholder engagement support Liaison with relevant government and industry regulators However, final ownership and approval authority typically remain with the asset owner/operator, and responsibilities can be structured based on the specific contract model and client requirements.

Ready to discuss your next modification?

Whether it's a brownfield revamp, a debottlenecking programme, or a CNG infrastructure project — we're ready

Request a quote

Talk to our brownfield and pipeline team about your project requirements. We respond within 24 hours and can mobilise emergency response within 6–12 hours of notification.