Pipeline & Process Pre-commissioning Services
Enquiries for preparing, testing or maintaining pipeline and process systems. Each scope needs defined system boundaries, acceptance criteria and site responsibilities.
Hydrostatic testing services
Hydrostatic testing services perform specified water-based pressure tests and document results under an approved test programme. Temporary equipment, instrumentation and personnel are selected to the defined system and acceptance requirements.
Fabricated equipment, piping and pipelines may require testing before acceptance or return to service. Test boundaries are established by the responsible project documentation.
Equipment, water handling, witnessing and reporting are distinct scope elements. Approved conditions and site responsibilities must accompany the enquiry.
Pipeline cleaning, gauging and drying
Pipeline cleaning removes specified material, gauging checks defined geometric conditions and drying reduces residual moisture to an agreed target. These are separate stages that may be combined within a preparation programme.
New pipelines and selected maintenance projects use these services before their next operating stage. Pipeline geometry and initial condition affect the work scope.
Specify which stages are included and their acceptance targets. Utilities, access, recovered material and documentation need assigned responsibilities.
Nitrogen purging and helium leak testing
Nitrogen purging supports a defined inerting or displacement objective, while helium leak testing detects leakage using an approved measurement method. Each service has separate system and acceptance requirements.
Plant commissioning and shutdown programmes may use these services on specified systems. The responsible project team defines the approved methods and conditions.
Gas supply, temporary equipment, specialist personnel and reports should be itemized. Isolation, access and site interfaces must be clearly assigned.
Chemical cleaning and oil flushing
Chemical cleaning removes targeted contamination through a compatible treatment process. Oil flushing circulates a specified fluid through a circuit to achieve a defined cleanliness objective. The methods address different materials and systems.
New equipment preparation and maintenance of process or lubrication circuits use these services. Initial condition and required cleanliness determine the scope.
Define materials, contaminants, method basis and acceptance criteria. Waste handling, temporary connections and restoration responsibilities belong in the work package.
Hot tapping and line stopping services
Hot-tapping and line-stopping services provide specialist execution of approved live-line connection or isolation work. Engineering assessment, compatible equipment and site coordination are essential parts of the project scope.
Pipeline modification and maintenance may use these methods where the responsible operator's design permits them. Operating medium and pipe condition are key inputs.
Engineering, equipment, fittings and field execution should be identified separately. The approved programme establishes operating conditions and acceptance requirements.
Controlled bolting and onsite machining
Controlled-bolting services assemble specified joints using an approved tightening method. Onsite machining restores or produces defined surfaces and dimensions without necessarily moving the complete equipment to a workshop.
Shutdowns, installation and repair work use these services for flanges and other mechanical interfaces. Access and component geometry affect the available methods.
Specify drawings, materials, dimensional targets and inspection requirements. Equipment, personnel and surface-preparation responsibilities should be clear.