Remediation and Sludge Evacuation.
The complexity of environmental degradation especially as it relates to marine and soil pollution has become a source of concern for both the corporate bodies in the oil and gas industries as well as the Federal Government of Nigeria. This is where Druosa Services comes in, with its vast personnel experience to moderate and mitigate these pollution and evacuate these sludge. Our company has made effort in providing evacuation and remedial standard procedures, equipment as well as reliable personnel to evacuate such sludge and bring back nature to its best and preserve lives as well as aquatic creatures, especially those that are bred for human consumption.

DSNL compliance to Remediation by enhanced natural attenuation techniques using the risk base corrective approach (RBCA), as well as provide technical support for remediation projects and take snap shots of the site with intrinsically safe camera before the project commences, during execution stage and after and in addition plan and partake in site audits, internal closeout and certification exercise with the QA/QC (Assurance Team).

Design, Civil/Building   and Mechanical  Construction.
DRUOSA SERVICES NIG LTD, specializes in Civil/Building, Mechanical construction. We   provide    assistance    in   conceptual    design, feasibility studies, documentation, draughting,   and procurement   of whole instrument or spares and cost estimation.
The conceptualization of the scope and it objectives will be the tailored by its design, and Druosa services engineering team with technical partners will build a solid design frame work in line with standard and regulation. Our construction teams are vast in Civil/Building works to mechanical completion state, with modern technological use and base frame works.


Process Services

Nitrogen Purging and Pressure Testing
Purging basically is (usually atmospheric) displacement with nitrogen. Our various clients have requested for various services ranging from degassing, start up or shutdown purging or just to oxygen free certain vessels or pipelines.

Nitrogen Helium Leak Detection
We operate one of the most effective leak detection systems in the world. When a system is to be checked it is pressurised with a mixture of nitrogen and helium and allows us to detect ANY leak with our advanced sniffer.

Accelerated Reactor and Turbine Cooldowns
Process systems operating at very high temperatures, reactors and turbines are known to take a long time to cool down before maintenance work can be done on them. Our cooling process with nitrogen at -196C accelerates cooling times quickly and efficiently.

Pipe Freezing
For pipelines whose isolation valve has failed or those that or cannot be isolated easily for maintenance our Pipe Freezing solution allows isolation without decommisioning the entire system and protect the inert fluid in the pipeline.

Chemical Cleaning Services
This is involves the use of suitable chemicals in the cleaning of pipes and oil engineering machinery in new plants or in turnaround situations for optimum performance. It is necessary that preservation oils and lubricants are cleaned off in new plants with mill scale and rust cleaned in existing plants. This critical service prevents degredation and long term damage.

Hot Oil Flushing
In hydraulic and lube oil systems, pipe and oil cleanliness is of great important as strong partilces will cause a short life span of bearings and slides. Hot oil flushing provides the service that ensures a high level of pipeline cleanliness thereby protecting equipment life.

Pipeline Services

Druosa Services Nig Limited Pipeline Services, as the construction of new pipeline increases, provides a diversified range of pre-commissioning services to take care of client pipeline problems. This range of services includes hydro testing, cleaning, all types of pigging, drying, and even specialized services like methanol and glycol swabbing.

Flooding, Gauging, Pigging and Hydrotesting
It is of primary importance that pipeline integrity be tested before commissioning and this involves filling the line completely with water before pressurizing. Also specialized pigs are introduced to check the weld from the inside.Druosa Services Nig Limited provides such services with its specialized equipments to bring about the desired result.

Miscellaneous Cleaning
Druosa Services Nig Limited provides quite a variety of pipeline cleaning techniques that cleans the pipeline to different specifications as par the product. Some pipeline requires just running of simple pigs while others require more specialized cleaning.

Air, Vacuum, or Nitrogen Drying
A pipeline that has been cleaned and drained of the test water has to dry before putting it on service to avoid unwanted safety implications and this can be done by the use of compressed dried air, Nitrogen gas or vacuum equipment. Druosa Services Nig Limited has a lot of experience in this as it has the necessary equipments to achieve the desired result.

Front End Engineering Designs (FEED), Procument & Construction

Whether it's a large complex greenfield project, an upgrade or a complete overhaul/refurbishment, Druosa Services Nig Limited delivers a multidisciplinary approach starting with the best(industry) practice front end engineering design (FEED).

A FEED study aligns the project and business objectives while creating a solid and detailed project foundation. Procurement and construction is then a natural and effortless follow up to a Druosa Service Nig Limited FEED.

Our Front end engineering design(FEED) is divided into five major stages as shown below:

  • FEED Preliminary planning
  • Information Gathering
  • Establish Design objectives
  • FEED test product
  • Final FEED document


  • Project management
  • Process automation
  • Process & pipeline engineering
  • Instrumentation & electrical
  • Safety systems engineering