Refinery Operations30 Sep 2020 17:04
There has been some discussion on this board about the adequacy of feedstock for the refinery following its planned start-up in a little more than two years. However, a shortfall in refined product output versus domestic crude oil production might not be such an issue as at first theorised.
The refinery capacity is about 30,000 b/d and domestic crude production is currently about 20,000 b/d, i.e. a theoretical shortfall of about 10,000 b/d. This assumes that all production from PetroChina’s blocks are redirected to the new refinery and not exported.
Operating refineries at a thruput well below their capacity is not ideal and can be problematic particularly in the winter months. This raises an interesting question: will it make sense to shut the refinery operations in the winter months and operate at high thruputs during the benign weather months.
This scenario has storage implications for both crude oil and refined products. In all likelihood the current modus operandi for supply of refined products given the climate conditions in Mongolia is to fill storage tanks in urban areas in the autumn and draw-down during the winter, which implies that there is adequate refined product storage capacity already in place.
Continuing the illustrative scenario, the refinery could operate at 30,000 b/d for eight months, starting say in April and shut down for four months from end November through March. This would require adequate crude oil storage at the refinery to handle crude oil deliveries during the winter months when the refinery is shutdown, and about 3 million barrels of crude oil storage capacity should be more than sufficient.
If this a realistic scenario, the availability of feedstock for the refinery may not be a critical issue, so that the Mongolian Government may not be under timing pressure to grant the Heron exploitation licence.