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YADA provides marine and offshore skid unit solutions that integrate process piping, valves, pumps, instruments, and other process equipment into prefabricated modular assemblies. Designed for marine fuel systems and offshore oil and gas projects, these skid packages help project teams complete more fabrication and equipment integration before delivery to the installation site.
Through process skid fabrication, piping prefabrication, equipment mounting, and coordinated inspection, YADA supports projects that require compact layouts, defined connection interfaces, and efficient installation. Depending on the project scope, skid systems can incorporate chemical injection equipment, pump skids, fuel supply components, heat exchangers, tanks, control instruments, and associated process piping on a common structural frame.
For offshore platforms, floating production facilities, LNG carriers, and other marine applications, a modular process skid can reduce installation time, simplify site coordination, and improve consistency between the approved design and the delivered assembly. Each package is configured according to the process requirements, operating conditions, equipment specifications, and applicable project or classification requirements.
Marine and offshore skid unit solutions are prefabricated equipment packages in which process equipment, piping, valves, instruments, and supporting structures are assembled on a common base frame. The completed module is transported to a vessel, offshore platform, or industrial facility for connection to the surrounding systems.
A modular process skid combines multiple components into one coordinated package. Instead of installing every pump, valve, pipe, and instrument separately at the project site, the supplier completes much of the assembly and specified testing in a workshop before shipment.
Depending on the process, skids include pumps, filters, tanks, heat exchangers, metering equipment, process piping, valves, instruments, control panels, and structural steelwork. Electrical systems, automation, insulation, and other components can also be incorporated when included in the approved scope.
YADA's marine skid solutions cover system design, piping prefabrication, equipment integration, manufacturing, inspection, and project delivery. Its published product range includes LNG fuel supply units, low-pressure buffer units, water/glycol units, booster pump units, condenser units, reliquefaction units, and tank connection spaces. Offshore applications include chemical injection systems and produced water treatment skids.
Different operating environments require different skid configurations. Marine fuel systems must fit vessel layouts and fuel handling requirements, while offshore process packages must accommodate process conditions, limited deck space, lifting and transportation constraints, and interfaces with other plant systems.
Offshore platforms use process equipment to handle, separate, transfer, treat, and condition production fluids. Skid-mounted packages bring related equipment together to support installation within the available topside footprint.
Depending on the project, offshore process skids may serve:
Each package must be engineered around the fluid composition, design pressure and temperature, flow requirements, equipment duty, and site interfaces. The skid frame and equipment arrangement must also account for operating access, maintenance clearances, lifting points, and structural loads.
YADA's offshore solutions include chemical injection systems, produced water treatment skids, and piping products for FPSO, FLNG, and fixed-platform projects. The exact process package and delivery scope should be confirmed against the project specification.
Marine fuel supply skids integrate equipment used to receive, condition, regulate, and deliver fuel to the vessel's engines or other consumers. The configuration depends on the fuel type and the vessel's fuel system design.
Typical marine fuel skid applications include LNG fuel supply, low-pressure gas buffering, water/glycol circulation, LNG bunkering, and specified alternative-fuel systems.
A marine fuel skid may combine pumps, valves, piping, heat exchangers, tanks, instrumentation, and control interfaces. LNG applications may require equipment suitable for cryogenic service, while methanol and other alternative fuels have their own material, sealing, and operating requirements.
YADA supports skid integration for specified marine fuel applications, including LNG and methanol-related systems. The equipment, operating range, and applicable approvals are determined by the actual vessel and project requirements.
Chemical injection skids meter and deliver controlled quantities of chemicals into a process stream. On offshore platforms, these systems may be used for corrosion inhibition, scale control, hydrate management, emulsion treatment, or other process duties, depending on the production system and chemical program.
A chemical injection skid may include:
The skid design must account for chemical compatibility, required injection rate, discharge pressure, dosing accuracy, pump redundancy, and maintenance access. Material selection and containment provisions should reflect the chemical properties and operating environment.
For offshore installation, factory assembly can reduce the amount of pipework and equipment mounting required on the platform. YADA offers chemical injection system solutions for offshore oil and gas applications, with package configuration based on the required process duty and project scope.
Pump skids combine one or more pumps with associated piping, valves, instruments, and a supporting frame. They are used to transfer or circulate liquids and other specified fluids within marine and industrial systems.
Depending on the application, pump skids may serve fuel transfer, water/glycol circulation, chemical dosing, liquid cargo handling, or other process duties.
The pump selection and piping arrangement should be assessed together. Flow rate, differential pressure, fluid properties, suction conditions, pipe resistance, and the required operating range influence the package design.
For marine and offshore projects, the package must also accommodate vibration, structural loading, maintenance access, and the available installation footprint. Where redundancy is specified, the design should define the standby arrangement, isolation provisions, and control logic.
Produced water treatment skids process water separated from oil and gas production. Depending on the process design, a package may combine separation equipment, pumps, valves, instruments, and treatment components to meet specified discharge or reinjection requirements.
Offshore produced water packages must fit the platform layout while accommodating variable flow, fluid characteristics, and operating conditions. The design should specify the required inlet conditions, treatment performance, outlet limits, utilities, control interfaces, and testing requirements.
YADA lists produced water treatment skid solutions within its offshore offering. Any claimed treatment performance should be tied to the specified feed conditions, process configuration, operating parameters, and verified project data.
The components of a modular process skid depend on its function. A chemical injection package, for example, will have a different equipment list from an LNG fuel supply unit or produced water treatment skid.
The skid frame supports the mounted equipment and provides a base for lifting, transport, and installation. Its design should account for equipment weight, operating loads, pipe reactions, vibration, lifting conditions, and the loads expected during transport.
The frame arrangement should also provide access to valves, instruments, pumps, and components that require inspection or maintenance. Coating and corrosion protection should match the installation environment and project specification.
Process piping connects the equipment and establishes the flow paths within the package. Valves provide isolation and flow control, while fittings, flanges, and other connections link the pipework to pumps, vessels, filters, and external systems.
Piping design should consider pressure drop, flow requirements, thermal movement, support spacing, material compatibility, and access for inspection. For marine and offshore projects, the piping arrangement must also be coordinated with vessel or platform interfaces and applicable design requirements.
Prefabricated process piping allows more fabrication and fit-up to be completed in the workshop. This can improve dimensional control and reduce the amount of field welding and adjustment required during installation.
Depending on the duty, a skid may incorporate pumps, tanks, pressure vessels, filters, heat exchangers, condensers, or other process equipment.
Equipment selection must match the required flow, pressure, temperature, fluid properties, and operating sequence. Maintenance access, lifting requirements, utility connections, and equipment replacement should be considered during layout development.
Instrumentation may include pressure and temperature transmitters, flow meters, level instruments, control valves, alarms, and other devices required by the process.
The control scope can range from basic instrument connections to an integrated control panel or interface with the vessel or platform control system. Signals, communications, power requirements, interlocks, and shutdown functions should be defined in the project documents.
A skid may require electrical power, instrument air, cooling or heating utilities, drainage, ventilation, or other services. The required connections depend on the package design.
Battery limits and interface points should be identified before fabrication. Clear interface documentation helps the site team connect the skid to the surrounding process, utility, electrical, and control systems.
A skid should be designed as an integrated package rather than a collection of components mounted on a frame. Process requirements, equipment layout, piping, structural design, controls, and installation conditions must be coordinated before manufacturing.
The design process begins with the required process duty and operating envelope. Typical inputs include the process description, P&ID, flow rate, pressure, temperature, fluid properties, equipment data, utility requirements, and project design standards.
These inputs guide equipment selection and establish the package's functional boundaries. Any assumptions or exclusions should be documented so that the supplier, EPC contractor, shipyard, and end user share the same understanding of the scope.
The skid layout establishes the position of equipment, pipe routes, valves, instruments, access areas, and connection points. The design should balance compactness with safe operation and maintainability.
Process piping should be routed to accommodate equipment connections, support requirements, pressure loss, thermal movement, drainage, and inspection access. Where specified, 3D modeling and piping stress analysis can help evaluate spatial conflicts and mechanical loads before fabrication.
Skid frames must be suitable for the loads imposed during operation, lifting, transport, and installation. The design should consider the equipment's center of gravity, lifting points, support locations, transport accelerations, and site handling methods.
The required structural calculations and verification should follow the project specification and applicable design standards. Lifting and transport arrangements should be confirmed before the skid is released for manufacture.
The layout should provide access to valves, instruments, pump seals, filters, and other serviceable components. Isolation points, pressure relief, drains, vents, alarms, and emergency functions should be incorporated where required by the process design.
For chemical injection and hazardous-fluid applications, the design should also address chemical compatibility, containment, leak management, and the procedures needed for inspection and maintenance.
Process skid fabrication brings structural work, piping production, equipment mounting, and specified instrumentation installation together in a controlled manufacturing environment. The objective is to deliver a coordinated package that matches the approved drawings and project requirements.
The frame is fabricated according to the approved structural drawings. Work may include cutting, fit-up, welding, dimensional checks, surface preparation, and protective coating.
Frame inspection should confirm key dimensions, equipment mounting locations, support positions, and lifting provisions before major equipment is installed.
Process piping is cut, fitted, welded, and assembled according to the approved piping isometrics and fabrication procedures. Valves, fittings, flanges, supports, and equipment connections are installed in accordance with the project requirements.
Prefabrication can improve control over welding access, dimensional fit-up, and inspection. Where the skid includes different material grades or special process requirements, the manufacturing plan should define material identification, segregation, welding procedures, and required inspection methods.
Pumps, tanks, filters, heat exchangers, and other equipment are mounted on the skid frame and connected to the process piping. The assembly team checks equipment orientation, alignment where applicable, maintenance clearance, and connection accessibility.
Electrical and instrument installation can be included where agreed. The boundaries between mechanical, electrical, instrumentation, and control work should be defined so that no required interface is left unresolved before shipment.
Inspection and testing are planned according to the equipment, applicable codes, and agreed inspection and test plan (ITP). Depending on the skid, checks may include:
Factory acceptance testing (FAT) may be arranged to verify defined functions before shipment. The test scope and acceptance criteria should be agreed in advance; not every skid can be fully operated in the factory because some functions depend on site utilities or external systems.
Modular skid construction moves a portion of the fabrication and assembly work from the project site to the workshop. Equipment, process piping, valves, and instruments can be integrated before transport, leaving the site team with a more clearly defined installation and connection scope.
This approach can reduce installation time in several ways:
A plug and play skid is designed to arrive with a high level of assembly completed, so the site team can position the module and make the specified external connections. However, plug and play does not mean installation-free. Foundations, lifting, tie-ins, utilities, electrical connections, commissioning, and approval activities may still be required.
The actual schedule benefit depends on the level of prefabrication, package size, transport constraints, site readiness, and the number of interfaces that remain to be completed offshore.
Offshore installation places additional constraints on skid design. Deck space may be limited, lifting windows may be restricted, and equipment must pass through defined transport routes before reaching its final position.
The skid design should account for overall dimensions, shipping weight, center of gravity, lifting points, transport supports, and any restrictions imposed by the vessel, offshore platform, or transport route.
Packaging and preservation measures should protect exposed surfaces, instruments, and equipment during shipment. Loose components and special handling requirements should be identified in the delivery documentation.
Before offshore installation, the project team should confirm the module's lifting plan, installation sequence, foundation or support arrangement, access requirements, and tie-in locations.
Where the skid is installed on an existing offshore platform, the design may also need to accommodate restricted access, nearby operating equipment, limited shutdown windows, and existing pipework or cable routes.
A skid's battery limits define where the package connects to the surrounding system. These boundaries should identify process inlets and outlets, utility connections, electrical power, instrument signals, drains, vents, and control interfaces as applicable.
Clear interface documentation helps reduce uncertainty between the skid supplier, EPC contractor, installation contractor, and end user. It should also identify which party is responsible for site connections, testing, commissioning, and final acceptance.
High-quality skid systems rely on coordinated engineering, controlled fabrication, traceable materials, and testing appropriate to the equipment and application. Quality should be assessed against the approved design and project requirements rather than general descriptions alone.
A cost-effective skid is not necessarily the smallest or least expensive package. It is a package that meets the required duty while balancing fabrication, installation, operating, maintenance, and lifecycle costs.
A project quality plan should define material verification, fabrication inspections, welding controls, testing, non-conformance management, and final release requirements. Depending on the scope, the handover package may include material certificates, welding records, NDT reports, pressure test records, instrument calibration results, drawings, and operating or maintenance documentation.
YADA states that its skid manufacturing process includes component traceability, assembly, welding, non-destructive testing, leakage testing, final inspection, and packaging, with inspection and testing managed against project quality requirements.
Operational efficiency depends on how well the skid performs its intended process duty and how easily operators can monitor, inspect, and maintain it. Equipment layout, valve accessibility, instrument visibility, isolation provisions, and spare-parts planning all affect long-term operation.
The skid should be designed around the actual operating sequence and maintenance strategy. If redundancy, remote monitoring, or automated control is required, these functions should be defined in the technical specification and verified during the agreed testing process.
YADA provides marine skid unit engineering, piping prefabrication, equipment integration, and related manufacturing services for specified marine and offshore projects. Its published skid production line has an annual output of approximately 350 sets, with skid assemblies weighing up to 100 tonnes, subject to the product configuration and project requirements.
YADA's skid solutions are supported by engineering and manufacturing capabilities that include piping design, modeling, stress calculation, component fabrication, skid integration, inspection, and project delivery.
Project teams can coordinate the following scope with YADA:
For marine equipment requiring classification approval, the applicable approval and certification scope should be confirmed for the specific product, vessel, and project.
YADA can review your requirements for a marine fuel skid, chemical injection package, pump skid, or other specified process skid system. To support a technical assessment and quotation, provide the following information where available:
Contact YADA to discuss a modular process skid tailored to your marine or offshore project.
A marine or offshore skid unit is a prefabricated module that combines process equipment, piping, valves, instruments, and structural supports on a common frame. It is assembled and inspected before delivery, then connected to the vessel or facility's external systems according to the approved installation plan.
A modular process skid may include pumps, tanks, filters, heat exchangers, process piping, valves, instruments, control panels, and a structural frame. Chemical injection skids may also include metering pumps, chemical storage, injection manifolds, and dosing controls. The final equipment list depends on the process duty and project scope.
YADA's published marine skid range includes LNG fuel supply units, low-pressure buffer units, water/glycol units, booster pump units, condenser units, reliquefaction units, and tank connection spaces. Its offshore solutions also include chemical injection systems and produced water treatment skids. Customized configurations depend on the technical specification and agreed scope.
Process skid fabrication completes much of the structural work, piping assembly, equipment mounting, and specified inspection in a workshop before shipment. This reduces the amount of field fabrication and helps establish the external connections and installation sequence in advance. Actual schedule savings depend on project readiness, transport, tie-ins, and commissioning requirements.
A plug and play skid is supplied with a defined level of factory assembly and testing so that installation can focus on positioning the module and making the specified external connections. Site work may still include lifting, foundations, process tie-ins, utility connections, electrical and control integration, commissioning, and required approvals.
The initial specification should include the process duty, fluid properties, flow rate, design pressure and temperature, P&ID, equipment list, piping materials, dimensions, utilities, control requirements, and applicable standards. Transport limits, offshore installation conditions, inspection requirements, and the delivery schedule also help define the final package.