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[karthik-process]

Dear all,

Currently am working in Fixed offshore platform design. This is my first project of this kind.

In the design basis it is mentioned that " SURGE FACTOR OF 25 % ON WELL FLUID FLOW RATES AND SWELL FACTOR OF 15% ON OIL AND CONDENSTAE FLOW RATES SHALL BE CONSIDERED FOR DESIGN OF TOPSIDE FACILITES ".

My understanding is ,

1) Surge factor -- Overdesign margin for future expected well flow

Swell factor - To accomodate expansion of oil to stock tank conditions

2) Whether the above factors to be applied on volume basis or mass basis??

3 ) Application : ( considering volume basis)

Oil flow -- A bbl/d
Total well fuild flow( including oil and associated gas ) - B bbl/d i.e ( A + gas flow)

Applying swelling factor - A x 1.15 bbl/d

Appllying surge factor - ( A x 1.15) + gas flow ) x1.25 bbl/d

Above is my own understanding. Please correct me if am wrong and Guide me.

Edited by karthik-process, 19 April 2012 - 12:33 AM.

[vikramltv]

1). Surge factor = expacted max increase in well flow at any time.
Swell factor = vaporization of liquid due to expected decrease in pressure.
2.) These factors are on volume basis.
3). your understanding is correct.