MILAN, June 17 (Reuters) - Italy's Eni said it would receive only half of the gas supply volumes it had requested from Russia's Gazprom on Friday after experiencing a shortfall in the two previous days.

"Against a daily gas demand by Eni of around 63 million cubic meters, Gazprom announced that it will only supply 50% of what was requested, with actual quantities delivered almost unchanged from yesterday," the energy giant said on its website.

Russian gas supply to Europe overall via the Nord Stream 1 pipeline fell further on Thursday and Moscow said more delays in repairs could lead to suspending all flows, putting a brake on Europe's race to refill its gas inventories. (Reporting by Maria Pia Quaglia Editing by Keith Weir)