Challenge

Stork completed 11 workscopes between 2009 & 2012 to complete online desanding on an FPSO’s First Stage Separator (20-VA-100) using the state of the art, Advanced Online Desander (AOD) Skid. The workscopes involved removal of sand from vessels, which was then washed and analyzed to ensure an under 1% oil on sand prior to discharge overboard.

Solution

Stork mobilized a team of five personnel and Spot, Rigged & Pressure tested equipment to the client’s satisfaction. Removed sand was washed and analysed prior to being discharged overboard.

Benefits

Vessels successfully desanded 9.3 tonnes of potentially NORM contaminated sand from the separators using the AOD Skid without the need for well shut in, vessel entry or extended shut down. Client saved significant costs and the sand removal extended the period between shut downs and maintained separator performance. Overall, this project was completed with an overboard discharge average of 0.05%, 511ppm & zero safety incidents. A high performance standard was achieved through the efficient, safe operation from Stork’s trained and competent crew. Reflective of this is the excellent client feedback received and an average FPAL rating of 8.7 (see service code 3.05.13).

Location	UK North Sea
When	2009 to 2012
Division	Environmental & Decontamination
Safety	Project delivered with no lost time incidents
Environmental	9.3 tonnes of sand disposed in line with discharge consent
Innovation	Advanced Online Desander Skid
FPAL Rating	8.7 (see service code 3.05.13)