Calaya Engineering Services Limited is an indigenous Nigerian engineering and oilfield services company established in 2005, with its headquarters in Port Harcourt, Rivers State. The company provides engineering, procurement, construction, inspection, maintenance and technical support services to organisations operating in the oil and gas, energy, power and industrial sectors.

Calaya Engineering Services specialises in wellhead and valve maintenance, corrosion management, pipeline construction and maintenance, cathodic protection, non-destructive testing, inspection and testing, calibration, fabrication, instrumentation, production monitoring, industrial chemicals, technical manpower supply and procurement.

The company combines engineering expertise, technical personnel and specialised inspection technologies to help clients maintain asset integrity, improve operational efficiency, identify equipment defects, manage corrosion risks and support the safe operation of industrial and oilfield facilities.

Its service portfolio covers different stages of industrial and oilfield operations, from engineering design, procurement and installation to inspection, testing, preventive maintenance, equipment refurbishment and facility upgrades.

Calaya’s objective is to deliver reliable, innovative and cost-effective engineering solutions while supporting the development and utilisation of Nigerian technical manpower in the oil and gas industry.

Detailed Description of Services Offered

1. Wellhead Maintenance, Servicing and Repairs

Calaya Engineering Services provides wellhead maintenance and servicing solutions designed to support the safe and reliable operation of oil and gas wells.

Wellheads and associated equipment are essential components of production systems. Their maintenance helps operators manage leakage, equipment deterioration and operational risks.

The company’s wellhead-related services include:

  • Wellhead installation and maintenance.
  • Wellhead equipment inspection and servicing.
  • Wellhead leak detection and sealing.
  • Online leak sealing and valve maintenance.
  • Wellhead refurbishment and repairs.
  • Christmas tree valve maintenance.
  • Christmas tree installation and refurbishment.
  • Subsea tree servicing support.
  • Casing and tubing equipment servicing.
  • Control line and control system maintenance.
  • Packer and hanger leak sealing and maintenance.
  • Greasing and lubrication of valves and wellhead equipment.
  • Repair and replacement support for wellhead accessories.

These services help oil and gas operators maintain the operational condition of critical wellhead equipment, reduce avoidable equipment downtime and support production continuity.

2. Valve Servicing, Refurbishment and Online Leak Sealing

Calaya provides maintenance and repair solutions for industrial valves and oilfield valve systems. Its services include online servicing, leak sealing, refurbishment, installation and pressure testing.

The company works with valve systems used in production facilities, pipelines, wellheads and other process installations.

Its valve-related services include:

  • Online valve servicing.
  • Valve leak sealing.
  • Valve greasing and lubrication.
  • Valve refurbishment and repairs.
  • Pressure valve maintenance.
  • Pipeline valve installation and servicing.
  • Flowline valve maintenance.
  • Choke valve servicing.
  • Christmas tree valve refurbishment.
  • Valve pressure testing.
  • Valve calibration support.
  • Installation and maintenance of valve accessories.

These services are important for maintaining the reliability of flow-control equipment and supporting safe fluid handling across oilfield and industrial facilities.

3. Pipeline Construction, Maintenance and Integrity Support

Calaya Engineering Services provides pipeline-related engineering and maintenance solutions for oil and gas operations.

Its capabilities cover pipeline construction, fabrication, inspection, corrosion monitoring and maintenance support.

Relevant services include:

  • Pipeline construction and installation.
  • Pipeline fabrication.
  • Pipeline maintenance and repair.
  • Pipeline integrity inspection.
  • Pipeline corrosion monitoring.
  • Pipeline thickness measurement.
  • Pipeline pre-commissioning and decommissioning support.
  • Flowline maintenance.
  • Pipeline inspection using non-destructive testing methods.
  • Pipeline corrosion mapping.
  • Pipeline monitoring and leak-detection technology solutions.

The company also identifies intelligent pigging and long-range ultrasonic testing among its inspection capabilities.

These services help operators assess pipeline condition, identify deterioration, manage integrity risks and plan appropriate maintenance activities.

4. Corrosion Management, Monitoring and Prevention

Corrosion management is one of Calaya Engineering Services’ key areas of specialisation. The company provides solutions aimed at identifying, monitoring and controlling corrosion in pipelines, vessels, tanks, production facilities and other industrial assets.

Corrosion can affect the structural integrity and service life of industrial equipment. Effective monitoring and prevention help organisations identify potential problems early and plan maintenance before equipment deterioration becomes critical.

The company’s corrosion management services include:

  • Internal corrosion monitoring.
  • Corrosion inspection and assessment.
  • Corrosion mapping.
  • Corrosion monitoring of pipelines and process equipment.
  • Corrosion control and prevention.
  • Protective coating and painting services.
  • Coating repairs.
  • Surface treatment.
  • Corrosion-related inspection and testing.
  • Corrosion data collection and reporting.
  • Recommendations for corrosion management and maintenance.

These services support asset integrity management and help clients make informed decisions regarding maintenance, repairs and equipment replacement.

5. Cathodic Protection Services

Calaya provides cathodic protection services for the monitoring, maintenance and protection of metallic structures exposed to corrosive environments.

Cathodic protection is used to reduce corrosion on buried or submerged metal structures, including pipelines, tanks and other industrial installations.

Its published capabilities include:

  • Cathodic protection system monitoring.
  • Cathodic protection system maintenance.
  • Installation and repair of cathodic protection systems.
  • Cathodic rectifier transformer repairs and installation.
  • Ground-bed design and installation.
  • Cathodic protection assessment and monitoring.
  • Corrosion prevention support for pipelines and metallic structures.

These services help clients manage corrosion risks, protect critical infrastructure and support the long-term integrity of industrial assets.

6. Non-Destructive Testing (NDT) and Inspection Services

Calaya Engineering Services offers non-destructive testing and inspection services to assess the condition of equipment, pipelines, structures and industrial assets without necessarily causing damage to the materials being examined.

NDT is important for identifying defects, corrosion, material loss and other conditions that may affect equipment performance and structural integrity.

Its published inspection capabilities include:

  • Ultrasonic testing and ultrasonic thickness measurement (UTM).
  • Magnetic particle inspection (MPI).
  • Penetrant testing (PT).
  • Long-range ultrasonic testing (LRUT).
  • Intelligent pigging.
  • Acoustic emission inspection.
  • Hybrid Acoustic Technology (HAT).
  • Statutory inspection support.
  • Pipeline and facility inspection.
  • Corrosion mapping and condition assessment.
  • Inspection of pressure-containing equipment.
  • Inspection reporting and recommendations.

These services support maintenance planning, asset integrity management and quality assurance for oil and gas and industrial facilities.

7. Advanced 3D Auto-Corrosion Mapping and Inspection

Calaya identifies advanced corrosion mapping among its specialised inspection services.

The company has publicised the use of a Rapid Motion Scanner (RMS2 450) for advanced corrosion mapping on pipelines, vessels and other industrial assets.

This technology-based inspection approach helps provide detailed information about corrosion and material loss across inspected surfaces.

The service can support:

  • Corrosion mapping of pipelines.
  • Corrosion mapping of vessels and process equipment.
  • Identification of areas affected by material loss.
  • Wall-thickness assessment.
  • Identification of high-risk corrosion locations.
  • Inspection data collection and analysis.
  • Maintenance planning and integrity assessment.

By using advanced inspection technologies, the company supports clients seeking better visibility into the condition of critical assets.

8. Hybrid Acoustic Technology and Acoustic Emission Inspection

Calaya’s published technical specialisations include Hybrid Acoustic Technology (HAT) and acoustic emission inspection.

These technologies provide additional approaches to assessing the condition and integrity of industrial assets.

Acoustic inspection methods can support the identification and evaluation of certain defects, material conditions and structural integrity concerns, depending on the equipment and inspection application.

The company’s published capabilities also identify acoustic camera inspection.

These specialised inspection solutions may be applied to support:

  • Industrial equipment condition assessment.
  • Inspection of selected pressure-containing assets.
  • Structural and asset integrity investigations.
  • Detection and evaluation of selected abnormal acoustic conditions.
  • Inspection data collection and technical reporting.

The exact inspection method, equipment and applicable standards should be agreed with Calaya based on the asset and inspection requirements.

9. Instrumentation, Calibration and Control Services

Calaya provides instrumentation and calibration-related services for oil and gas production facilities and industrial process systems.

Accurate instrumentation is essential for monitoring pressure, flow, temperature, tank levels and other operating parameters.

Its published capabilities include:

  • Instrumentation installation and maintenance.
  • Instrumentation materials procurement.
  • Pressure safety valve (PSV) calibration.
  • Pressure gauge calibration.
  • Flowmeter calibration.
  • Tank calibration.
  • Gas testing.
  • Pressure testing.
  • Maintenance of instrumentation systems.
  • Process measurement and monitoring support.
  • Calibration of portable oil and gas measuring devices.

These services support measurement accuracy, process monitoring, equipment reliability and operational control.

10. Pressure Testing and Equipment Testing

Calaya provides pressure testing services for valves and selected oilfield and industrial equipment.

Pressure testing helps assess the ability of equipment and components to withstand specified operating or test pressures under controlled procedures.

Its published workshop and testing capabilities include:

  • Valve pressure testing.
  • Pressure testing of selected oilfield equipment.
  • Testing of pressure-containing components.
  • Pressure safety valve calibration.
  • Inspection and testing support.
  • Documentation of test results.

Testing requirements, acceptance criteria and applicable standards depend on the equipment and the client’s specifications.

11. Production Monitoring, Data Acquisition and Analysis

Calaya offers production monitoring and testing solutions to support the evaluation of oil and gas production facilities and operating systems.

Its published service portfolio includes production data acquisition using Supervisory Control and Data Acquisition (SCADA) systems.

Relevant services include:

  • SCADA-based production data acquisition.
  • Production monitoring.
  • Production data analysis.
  • Production forecasting.
  • Production performance assessment.
  • Internal corrosion monitoring.
  • Cathodic protection monitoring.
  • Surface sand control using sand traps.
  • Production process monitoring.
  • Technical recommendations for production facilities.

These services help operators obtain operational information, monitor equipment and production conditions, identify potential problems and support informed production management decisions.

12. Facilities Maintenance, Upgrade and Installation

Calaya provides facilities maintenance and upgrade solutions for oil and gas production installations and industrial process facilities.

Its services are designed to support the continued operation, improvement and maintenance of production infrastructure.

The company’s published capabilities include:

  • Facilities inspection.
  • Statutory inspection support for flow stations.
  • Facility upgrade and installation.
  • Preventive maintenance programmes.
  • Routine maintenance programmes.
  • Shutdown maintenance support.
  • Equipment failure monitoring and forecasting.
  • Mechanical maintenance.
  • Instrumentation services.
  • Minor piping works.
  • Mechanical fabrication.
  • Facility painting and coating.
  • Insulation services.
  • Material balance studies.
  • Process facility assessment and recommendations.
  • Ultrasonic thickness measurement.
  • Maintenance recommendations.

These services help facility operators maintain equipment condition, address operational deficiencies and plan maintenance and improvement activities.

13. Steel Structure Design, Fabrication and Construction

Calaya provides engineering and fabrication solutions for steel structures and industrial infrastructure.

Its fabrication capabilities support construction, maintenance and modification projects across the oil and gas, energy and industrial sectors.

Services include:

  • Steel structure design.
  • Structural steel fabrication.
  • Metal fabrication and welding works.
  • Pipeline fabrication.
  • Tank fabrication.
  • Tank shell repairs.
  • Mechanical fabrication.
  • Minor piping fabrication and installation.
  • Industrial structural works.
  • Equipment support structures.
  • Fabrication and installation support.
  • Construction and maintenance of industrial facilities.

These services are relevant to clients requiring fabrication and construction support for production facilities, industrial plants, pipelines and other engineering projects.

14. Sandblasting, Surface Preparation and Protective Coating

Calaya offers surface preparation, blasting, painting and coating services as part of its corrosion management and industrial maintenance portfolio.

These services help prepare metal surfaces for protective coatings and support the maintenance of steel structures, pipelines, tanks and industrial equipment.

Its service areas include:

  • Abrasive blasting and surface preparation.
  • Industrial painting.
  • Protective coating application.
  • Coating inspection.
  • Coating repairs.
  • Corrosion protection.
  • Surface treatment.
  • Painting and coating maintenance.

Proper surface preparation and protective coating are important for managing corrosion and extending the service life of industrial assets.

15. Industrial and Oilfield Chemicals

Calaya Engineering Services identifies industrial and oilfield chemicals among its business specialisations.

These products and solutions support selected industrial, production, maintenance and corrosion management applications.

Its chemical-related business areas include:

  • Industrial chemicals.
  • Oilfield chemicals.
  • Chemicals for selected production and process applications.
  • Chemical-related corrosion management solutions.
  • Chemical injection system support.
  • Procurement and supply of relevant industrial chemical products.

The precise chemical products, applications, specifications and availability should be confirmed with the company before procurement.

16. Chemical Injection Systems and Process Equipment

Calaya’s procurement and supply portfolio includes chemical injection skids and related process equipment.

Chemical injection systems are used in oil and gas and industrial facilities to introduce controlled quantities of chemicals into process streams for applications such as corrosion management and other production requirements.

Relevant service and supply areas include:

  • Chemical injection skids.
  • Chemical injection equipment.
  • Process monitoring devices.
  • Industrial process equipment.
  • Associated instrumentation and materials.
  • Procurement and supply support.

Equipment selection and specifications depend on the process conditions and the client’s operational requirements.

17. Procurement and Supply Services

Calaya provides procurement and supply services for oilfield, engineering, production and industrial operations.

The company identifies procurement and supply as part of its engineering support and project service portfolio.

Its published supply categories include:

  • Chokes and flowline valves.
  • Pipeline valves of different sizes.
  • Chemical injection skids.
  • Internal corrosion access fittings.
  • Digital pressure monitoring devices.
  • Downhole monitoring devices.
  • Booster and transfer pumps.
  • Instrumentation materials.
  • Compressors and related equipment.
  • Oilfield equipment and accessories.
  • Industrial and engineering materials.

Calaya’s procurement services support organisations seeking equipment, materials and technical products for maintenance, construction, production and facility operations.

18. Technical Manpower Supply and Engineering Support

Calaya provides technical manpower support for engineering, oilfield and industrial operations.

The availability of suitably qualified personnel is important for project execution, equipment maintenance, inspection, fabrication and production support.

Its manpower-related services include:

  • Technical manpower supply.
  • Engineering personnel support.
  • Inspection and quality control personnel.
  • Maintenance personnel support.
  • Project-related technical staffing.
  • Production process support personnel.
  • Specialist manpower for engineering activities.

Calaya’s published Nigerian Content registration information also identifies technical manpower supply professionals among its consultancy-related service areas.

19. Engineering Consultancy and Technical Support

Calaya offers engineering consultancy and technical support for clients undertaking oilfield, production and industrial projects.

Its publicly listed consultancy areas include engineering services, quality assurance and quality control (QA/QC), production processes and process maintenance.

Relevant areas include:

  • Engineering consultancy.
  • Technical engineering support.
  • QA/QC consultancy.
  • Production process consultancy.
  • Process maintenance consultancy.
  • Engineering assessment and recommendations.
  • Inspection and maintenance planning support.
  • Technical project support.

These services help clients assess technical requirements, address engineering challenges and support the execution of maintenance and improvement activities.

20. Project Management and EPC Support

Calaya’s service portfolio includes engineering, procurement and construction-related activities, together with project management support.

The company provides a combination of technical and project-related services for construction, maintenance and engineering operations.

Its project support capabilities include:

  • Engineering coordination.
  • Procurement and materials support.
  • Fabrication and construction coordination.
  • Installation and maintenance support.
  • Project planning and execution support.
  • Inspection and quality control coordination.
  • Technical manpower coordination.
  • Facility upgrade and maintenance projects.

This integrated approach supports clients seeking coordinated engineering and project services for oil and gas and industrial operations.

21. Civil Engineering and Construction Services

Calaya identifies civil engineering and construction services among its business activities.

These services support infrastructure development, facility improvement and construction requirements in the industrial and energy sectors.

Relevant service areas include:

  • Civil construction support.
  • Industrial infrastructure works.
  • Facility improvement projects.
  • Construction and maintenance support.
  • Structural and associated engineering works.
  • Project-related construction activities.

Specific civil engineering project capabilities should be discussed with the company according to the scope and technical requirements of each project.

22. Waste Management and Environmental Services

Calaya’s published company profile identifies waste and environmental management among its service areas.

These services are relevant to industrial and oilfield operations where proper waste handling and environmental housekeeping are important.

Its listed service areas include:

  • Refuse disposal.
  • Environmental cleaning.
  • Drill waste management.
  • Management support for mud and brine waste.
  • Oil-based mud waste management.
  • Chemical-based mud waste management.
  • Industrial waste management support.

Waste management requirements vary according to waste classification, applicable regulations and the project environment. Clients should confirm the company’s current permits, approved disposal arrangements and exact service scope before engagement.

Industries and Sectors Served

Calaya Engineering Services Limited provides technical and engineering solutions relevant to several sectors, including:

Oil and Gas Industry: Wellhead servicing, valve maintenance, pipeline construction, production monitoring, corrosion management, inspection, fabrication and procurement.

Energy and Power Sector: Engineering, maintenance, inspection, fabrication and technical support for energy-related infrastructure.

Petroleum Production and Processing: Production monitoring, process maintenance, instrumentation, corrosion monitoring and facility upgrade services.

Pipeline and Infrastructure Sector: Pipeline fabrication, construction, inspection, corrosion management and maintenance.

Industrial Manufacturing: Equipment inspection, calibration, fabrication, preventive maintenance and engineering support.

Construction and Engineering: Steel structure design, fabrication, civil engineering, mechanical works and project support.

Industrial Facilities and Process Plants: Instrumentation, process monitoring, pressure testing, equipment maintenance and facility inspection.

Environmental and Waste Management: Industrial cleaning and waste management support for selected oilfield and industrial waste streams.

Company Commitments

Calaya Engineering Services Limited’s published company information highlights technical competence, innovation, quality service delivery, client satisfaction and the development of Nigerian technical professionals.

Its stated mission is centred on enabling technically capable Nigerians to participate in engineering work and deliver projects within scheduled timelines without compromising required national or international standards.

The following commitments reflect the company’s published positioning and service approach.

1. Commitment to Quality Service Delivery

Calaya emphasises delivering engineering and technical services that meet client requirements and applicable industry standards.

Its inspection, calibration, testing, fabrication and maintenance activities are intended to support quality and reliability throughout the project lifecycle.

2. Commitment to Health, Safety and Operational Integrity

The company operates in technical environments where safety and equipment integrity are essential. Its services in inspection, wellhead maintenance, pipeline integrity, corrosion management and pressure testing support the identification and management of operational risks.

Calaya’s engineering and maintenance approach places importance on safe execution and the condition of critical industrial assets.

3. Commitment to Innovation and Technology

Calaya identifies technology and innovation as important elements of its service delivery.

Its published capabilities include advanced corrosion mapping, acoustic inspection technologies, SCADA-based production monitoring and specialised pipeline inspection solutions.

The company also identifies relationships with technology providers and original equipment manufacturers (OEMs) as part of its approach to accessing engineering products and solutions.

4. Commitment to Client Satisfaction

Calaya aims to provide engineering solutions that respond to client requirements, operational challenges and project objectives.

Its range of services enables clients to seek technical support for inspection, maintenance, procurement, fabrication, construction and production-related requirements.

5. Commitment to Timely Project Execution

The company’s published mission emphasises completing engineering work within scheduled timelines while maintaining required standards.

This reflects its focus on effective coordination, technical competence and project delivery.

6. Commitment to Nigerian Content and Local Manpower Development

As an indigenous Nigerian engineering company, Calaya highlights the development and utilisation of technically skilled Nigerians.

Its mission emphasises creating opportunities for qualified Nigerian professionals to participate in engineering projects and contribute to the development of the country’s technical workforce.

7. Commitment to Asset Integrity and Operational Efficiency

Through its corrosion management, inspection, calibration, maintenance and production monitoring services, Calaya supports clients in protecting critical assets and improving operational reliability.

Its technical solutions are intended to help clients identify equipment deterioration, make informed maintenance decisions and manage operational risks.

8. Commitment to Environmental Responsibility

Calaya identifies waste and environmental management among its service areas. Its listed activities include industrial cleaning, refuse disposal and selected oilfield waste management services.

These activities support the need for responsible waste handling and environmental management in industrial operations.

Why Choose Calaya Engineering Services Limited?

Organisations seeking oilfield engineering, industrial maintenance, inspection and technical support services may consider Calaya for the following reasons:

  • Indigenous Nigerian Engineering Company: Established in 2005, with its headquarters in Port Harcourt, Rivers State.
  • Broad Technical Service Portfolio: Offers wellhead services, corrosion management, pipeline construction, inspection, fabrication, calibration and procurement.
  • Specialised Inspection Capabilities: Provides NDT, ultrasonic thickness measurement, acoustic inspection and advanced corrosion mapping.
  • Wellhead and Valve Expertise: Supports installation, servicing, refurbishment, maintenance and leak sealing of wellhead and valve equipment.
  • Corrosion Management Solutions: Offers corrosion monitoring, cathodic protection, surface treatment and protective coating services.
  • Production and Process Support: Provides SCADA-based data acquisition, production monitoring and process maintenance support.
  • Engineering and Fabrication Capabilities: Supports steel structure design, pipeline fabrication, tank fabrication, mechanical works and construction.
  • Technical Manpower Support: Provides technical personnel support for engineering and industrial operations.
  • Procurement and Equipment Supply: Supports clients with sourcing and supply of oilfield and industrial equipment.
  • Technology-Based Solutions: Identifies advanced inspection technologies and technology partnerships among its service capabilities.
  • Commitment to Local Content: Emphasises the participation and development of Nigerian technical professionals.