Oil & Gas - Onshore Processing
Onshore processing plants concentrate their piping risk in a small number of repeatable places: long liquid lines behind a tripping pump, fast-acting valves on loading and transfer systems, reciprocating compressors running away from their original design case, pressure reducing stations discharging into headers, and small bore connections on lines that now carry higher rates than the original basis. Each mechanism ends in the same place, which is cyclic stress, lost availability and a system operating outside its code.
Dynaflow analyses these mechanisms directly. As independent consultants we work for owners, operators, EPC contractors, licensors and equipment suppliers, and report results against the applicable code.
ANALYSIS DISCIPLINES
- Surge and waterhammer analysis
- Pulsation studies
- Vibration analysis and fatigue assessment
- Acoustically and flow induced vibration
- Pipe stress analysis
- Fiberglass and composite piping
ONSHORE SOLUTIONS
Gas Processing Services
Acoustic and mechanical response analysis of reciprocating compressor systems, covering damper sizing, orifice selection and the support scheme required to hold shaking forces and cyclic stress inside acceptance limits.
Assessment of flow induced excitation in two-phase and high velocity lines, combining on-site measurement, modal analysis and dynamic pipe stress calculation to identify the load path before a modification is specified.
Screening and detailed assessment of pressure reducing valves, relief systems and high velocity gas lines, ranking lines by likelihood of failure and resolving the branch and small bore geometry where AIV failures start.
Static and dynamic stress analysis for thermal, sustained and occasional load cases, including flange leakage checks and verification of equipment nozzle loads against the manufacturer’s limits.
ONSHORE SOLUTIONS
Terminal, storage and loading services
Transient analysis of jetty, truck and rail loading systems and of tank transfer lines, identifying surge pressures from valve closure and pump trip and specifying the control measures that keep the system within design pressure.
Steady state and transient hydraulic analysis of transfer networks to identify pressure drops, flow restrictions and capacity limits, with calculated results supporting operational and design decisions.
Hydraulic and transient analysis of firewater ring mains, deluge and foam systems, verifying delivered pressure and flow at the required nozzles and assessing the surge generated on activation.
Stress analysis of tank connected and jetty piping, including settlement, thermal movement and nozzle load verification on tanks and loading arms.
ONSHORE SOLUTIONS
Petrochemical and fertiliser services
Transient analysis of pump trip, valve closure, check valve behaviour and column separation in process, cooling water and firewater systems, with surge protection specified where allowable pressures are exceeded.
Identification and mitigation of vibration-induced fatigue in pumps, compressors and connected piping, with a modification set that can be executed inside a turnaround window.
Pulsation and mechanical response analysis of reciprocating pump systems, reducing pulsation-induced vibration and the associated fatigue loading on piping, supports and equipment.
Design review and stress analysis of fibreglass systems in cooling water, seawater and produced water service, including support spacing and the interaction between composite and metallic sections.