Alderley

Technical excellence: delivered

Application NotesProduced Water Treatment

Project Name:Skarv Development Project

Location:Skarv and Idun Fields FPSO Project, northern North Sea

EPC Contractor/Consultants:Aker Solutions

End User:BP Norge AS

Scope of ApplicationThe scope of supply includes a produced water treatment package consisting of 3 x 12” deoiling hydrocyclone vessels in duplex SS, containing Alderley’s market leading AP20 hydrocyclone liners. This is followed by a Compact Flotation Unit (CFU), which utilises our proprietary internals to maximise the gas bubble/oil droplet contact time, by ensuring uniform distribution of gas bubbles throughout the flotation vessel. Final stage polishing of the produced water is achieved by absorption media filters, containing oil absorbent media. The design capacity of the overall package is 1,600 Sm3/day. Built to NORSOK specifications and meeting stringent working environment guidelines.

Skarv and Idun Fields

Application PerformanceThe package is designed to treat produced water with an inlet oil concentration of up to 3000 ppm(v) to achieve a guaranteed outlet of <15 ppm(v), with a target of <5 ppm(v).

Alderley

www.alderley.com

Rev. 04.01.17

Applicable Standards

API RP 520/521: Pressure-relieving and Depressuring Systems

ASME B31.3: Process Piping Standard

EN 13445: Unfired Pressure Vessels

PED 97/23/EC: Pressure Equipment Directive

NACE MR0175/ISO 15156: For the design of H2S containing vessels

Provision and Use of Work Equipment Regulations (PUWER)

NORSOK Standards

• 3 x Duplex SS deoiling hydrocyclone vessels

• 1 x Duplex SS Compact Flotation Unit (CFU)

• 2 x Duplex SS absorption filters

Main Equipment