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Our services cover project management, engineering, procurement, construction/fabrication, installation, commissioning and maintenance.

Highlighting Core Competencies/Specialised Operations

Our services cover project management, engineering, procurement, construction/fabrication, installation, commissioning and maintenance. Some other associated Specialized Areas of Operation and Core Comptetance include the following:


In the process of executing Pipeline Construction works, major roads and railway crossings are crossed by employing Thrust-Boring service.

This system enables the crossing of the HIGHWAYS, and RAILWAYS without interfering with vehicular and train traffic.

Horizontal Directional Drilling (HDD)

Oilserv Limited uses one of the Company's innovative technologies called Horizontal Directional Drilling (HDD) to cross its pipelines across the river of various width without any obstruction to the marine traffic.

With HDD, Anchor blocks and cementing of pipes are not required. Directional boring minimizes environmental disruption and helps to complete the toughest crossings on time and under budget. HDD is also suitable for a variety of soil conditions and jobs including crossing of Telecommunication lines, Heavy Duty Cables, Pipeline crossing across built-up areas, railways and across facilities.

Welding and Fabrication

Our extensive experience and capabilities in welding and fabrication is unequalled. Oilserv Limited has two dedicated and well equipped fabrication workshops for the services of the Land, Swamp and Offshore operations.

We undertake fabrication of Spools, Swamp buggies, Mechanical and Structural fabrications, Barges, Platforms, Decks, Jackets, Crude Oil/ Product Storage Tanks.

Our fabrication conforms to ASME B31.4 Code and to other internationally acceptable Standards and Codes

Manifold Construction & Installation

Oilserv Limited since inception has successfully executed the Construction and Installation of Manifolds in the Niger Delta Region of Nigeria.

A typical example was the Construction of 36inch Trans-Niger – Pipeline (TNP) Manifold at Ogale, Eleme in Rivers State, which falls within the Ogoni axis of SPDC (SHELL) operations.

Diving Services

Oilserv’s provides air, mixed gas, and saturation diving services for the oil and gas industry. In partnership with our strategic partners are supported by a large ROV and Diving Support Vessel fleets (outfitted with Dynamic Positioning Functionality).

Oilserv’s diving team features of certified underwater welders who perform construction and maintenance welding services (wet and dry hyperbaric welding repairs). Oilserv divers also have experience with grouting, platform repairs, pipeline maintenance, inspection, plugging and abandonment.

Fabrication Activity & Yards

Oilserv owns and operates a 20 Hectare support base in the Niger-Delta region of Nigeria. This facility allows for major fabrication in service of onshore and offshore projects.

This facility also allows for project staging, equipment storage to name a few. A world class high speed fabrication shop is in the works to speed up our processes and will be online circa 2018.

Our partnership with key partners give us access to a 110 Hectares Marine Base that delivers Ship Building, Heavy Structure Prefab & Erection, Offshore Vessel Build-Upgrade-Rehab (MOPU, Platforms), Autoblast & Painting Workshop to name a few.

Transportation & Installations

Oilserv provides services for transportation and installation of the typically large and heavy equipment and modules found in the offshore market.

We provide transportation & installations services of platforms, pipelines, facilities, heavy structures for shallow and deep water projects.

Pipeline Leak Repairs/Clamping

Oilserv has proven it's strength in the area of pipeline and flow-line leak repairs and clamping services, on land, swamp, canals and river crossings.

Cathodic Protection

Oilserv carries out temporal Cathodic protection and Imprest-Current Cathodic protection as an integral part of her scope of activities.

Cathodic protection of pipelines is very vital to the pipeline integrity maintenance. We design, construct/install and commission cathodic protection systems on flow-lines, pipelines and facilities.


As part of our services Oilserv undertakes de-oiling and de-watering of oil and gas pipelines respectively.

We use various pigging vehicles, chemical/gels and inhibitors (anti-corrosion fluids) in the course of de-watering. Our state-of-the-art HT400 triplex pumps come in handy.

We also deploy high capacity air compressors to de-water the line prior to Nitrogen purging / injection of the gas pipeline.



We operate safely and sustainably to deliver quality projects, innovative solutions and create superior value for our stakeholders.



To be the leading EPC (Engineering Procurement Construction) Company in Sub-Saharan Africa.



Reliability Delivered.

ASME Codes | DIN Codes | British Standards

We ensure that we have at our disposal the following updated codes and standards: ASME Codes | DIN Codes | British Standards. Oilserv Limited is ISO 9001:2008 certified, compliant to the Nigerian Content Law, including OHSAS 18001, ISO 14001 and ISO 260000 (CSR)

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24km x 24-inch: Owaza to Alaoji

EPC of 24 km x 24-inch Gas transmission Pipeline system from Owaza to NDPHC Power Plant at Alaoji...See Our Work

Oando 128km x 18-inch

EPC of Oando 128km x 18-inch South-South gas transmission pipeline system from Ukanafun in Akwa Ibom State to Unicem Plant at Calabar...See Our Work

102.8 km x 12-inch Crude Oil Pipeline

Engineering, Procurement and Construction for 102.8 km x 12-inch Crude Oil Pipeline System from Umusadege to Eriemu for Umugini...See Our Work

23km x 6-inch Natural Gas Liquid Product Pipeline

23km x 6-inch (Natural Gas Liquid Product) Cawthorne Channel Cryogenic NGL product...See Our Work

Our Experience

Oilserv Limited has been engaged in providing Engineering, Procurement and Construction services on Land, Swamp and Offshore locations for Oil/Gas operations.

Oilserv has performed various turnkey projects relating to Platforms, Production facilities, and the installation of Bulklines, all of which involve Engineering, Project management and Construction services.

Our experience ranges from providing consultancy services to undertaking turn-key contracts...Click Here To See What We Have Done


Meet Some of Our Very Satisfied Clients!