Test Your Knowledge of LNG Offload Abnormal Condition Procedures with This Infor...

Abnormal Condition Procedures for LNG Offload

• In case of emergency or abnormal conditions during LNG offload, call 452-7111.
• High-pressure load occurs when the pressure in the storage tanks rises above normal conditions due to warm LNG transfer or operator error.
• Personnel must monitor flow rates, liquid levels, and tank pressures during LNG offload to prevent overpressure and filling.
• Stop transfer if the pressure in the tank being filled exceeds 70 psi.
• If the LNG load is suspected or found "hot," close LNG production out and observe the associated pressures.
• Throttle the LNG production valve of the tank being filled if distribution pressure begins to drop more than one psi.
• Verify the bypass valve is open to bypass the boiloff gas backpressure regulator to allow the distribution system to absorb extra boiloff gas.
• Bypass the meter run by opening valves on the 4" bypass line if necessary.
• Cease offload immediately if tank pressure cannot be maintained.
• New operators must receive initial training and be trained on assigned tasks before performing tasks unassisted.
• Qualification will be provided by several different methods, including on-the-job training, SOP review, performance evaluation, oral and written exams.
• All operators will be reevaluated periodically, and IGU must maintain all training records for all employees for their entire employment plus one year.