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Oil & Gas
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            Reference: Oil & Gas

            North Sea Offshore Platform (Usa)

            Offshore oil drilling platforms flicker, mechanical resonance, poor power factor, high harmonic current, excessive voltage distortion, reduced production capacity solution

            Reference: Oil & Gas payback < 3 months, increase pump speed 2 Hz ==> increase production
            payback < 3 months, increase pump speed 2 Hz ==> increase production

             

            I. CUSTOMER ENVIRONMENT / PROJECT CONTEXT

             

            Customer profile:

            • A worldwide group of energy and petrochemical companies, with more than 100,000 employees in more than 110 countries.
             

            Customer objective and constraints:

            • A gas production platform in the North Sea had developed production limitations due to the interaction of several large variable frequency drives (VFD) that control down hole pumps with the high impedance generators that supply electricity to the entire platform.
            • Additional problems included flicker in the platform lighting system and mechanical resonance throughout the platform when the two largest VFDs operated. Mechanical resonance was due to the generators straining during heavy VFD loading.
             

            II. SOLUTION IMPLEMENTATION

             

            Implementation methodology (main phases):

            1. A detailed power system analysis was performed with site measurement data recorded.
            2. The following solutions were examined:
            • Segregation of VSD
            • Passive filters on VSD
            • Active harmonic filter on VSD

            3. Advantage of the Active Harmonic Filter. Owner considerations:
            • Standard design
            • Apply anywhere/anything
            • Simple parallel installation
            • Future use after decommissioning
             

            Solution overview (services, products, systems, architectures...):

            Solution overview (services, products, systems, architectures...):
             

            How did we estimate the energy savings (methodology, tools, ...)

            • Applied a 300 Amp rated AHF on each Pump
              K8 VSD/pump:
               - Lowered THD(I) from 29% to 7%
               - Lowered THD(V) from 9% to 4%
               - Raised DPF from 0.86 to 0.94
              K4 VSD/pump:
               - Lowered THD(I) from 32% to 7%
               - Lowered THD(V) from 11% to 5%
               - Raised DPF from .85 to .96
             

            III. RESULTS / ACHIEVEMENT

             

            Customer benefits:

            • Payback 80 days ($2000/day in 2002)
            • Stopped generator voltage oscillation
            • Stopped flicker
            • Met cost and reuse objectives
            • Increased pump speed 2 Hz = income objective
             

            Schneider Electric differentiating values VS competitors:

            • Complete solutions, from investigation to implementation
               - Segregation of VSD
               - Passive filters on VSD
               - Active harmonic filter on VSD
            • Capacity to investigate
             
             
             
             

            To know more 

            Requests for Solutions information

            Contact Customer Care Centre
             

            Solution breakdown

            Main services:
            • Engineering services: Services
            Main products & systems:
            • Cleanwave
            • Sinewave
            • Accusine