Crude Oil Discharging Operation

On completing this chapter you will have an understanding of:

• Why the start up stage is extremely critical.
• How the proven pressure capacity of the pumps valves and line systems is important when discharging at full rate.
• The aims of the ballasting stage.
• The main aims and concerns of crude oil washing.
• Why ship's trim and the discharge pressure of cargo pumps is important during stripping.
• The key features of the 3 cargo stripping systems and their use.
• Why pressing up of ballast tanks is important before departure.
• The ship's main concern during the final gauging of cargo tanks after discharge.
• The importance of the final line during of the cargo hose.