* Russia needs oil price of $100 to balance budget
* Oil prices at four-year low of $78
* Rosneft CEO, Energy Minister to Vienna before OPEC meeting
* Russia can't cut output, has no storage to limit exports
By Katya Golubkova, Gleb Gorodyankin and Gleb Stolyarov
MOSCOW, Nov 20 (Reuters) - Russia can do little to shore up slumping global prices even if OPEC wants it to. Russian wells will freeze if they stop pumping oil, and the country cannot store the output it would otherwise export.
Before next week's meeting of OPEC, Russia has already spoken to group member Venezuela about the need to "coordinate actions in defence" of oil prices and it plans to send a high-ranking delegation to press the message.
But despite needing oil prices of $100 a barrel to balance its budget, Russia has changed little since 2008 when the Organization of the Petroleum Exporting Countries urged Moscow to join forces to cut supply to shore up prices.
Then and now, the world's biggest producer lacks the ability to increase or turn down its own production.
"Nothing has changed," said Valery Nesterov, an analyst with Sberbank CIB, adding that while China has built storage to beef up its stocks for its energy-intensive economy, Russia has constructed no new facilities.
Nesterov also said Russia had a harsh climate and challenging geology which meant it cannot simply stop wells from pumping oil. "Russian wells will just freeze if you stop them."
But that does not mean that Moscow will not try to persuade others to help shore up a price, which has fallen 33 percent since June to $78 a barrel.
Igor Sechin, chief executive officer of Russia's biggest oil producer Rosneft and a long-standing ally of President Vladimir Putin, and Energy Minister Alexander Novak will both fly to Austria days before OPEC is due to meet in Vienna.
They are due to attend a conference with Venezualan officials, have not shed light on the agenda or the other participants. Novak's spokeswoman said on Thursday the minister would not attend the OPEC meeting itself.
Oil market watchers are divided on the outcome of the meeting in Vienna, which will be the most uncertain for years. Analysts are split over whether there will be a coordinated cut, with some saying output could be reduced by up to 1.5 million barrels per day (bpd).
Some experts argue that Russia could even need oil prices as high as $115 to balance the budget, since social and military spending have soared, while Western sanctions over Ukraine have cut off Moscow from funds it borrows in Western financial markets.
Given that its production cannot be stopped, the only option left would be for Russia to cut its exports, which stand at around 4 million bpd.
Asked if Russia could hold back oil it would normally export, a trader at a major western oil company said: "And where would you put it?"
Some oil could be stored in the Transneft pipeline system, one of the world's longest, he said. But it was never supposed to be used for prolonged storage, since it is reserve capacity to be used only in the event of if technical problems.
Transneft did not respond to a request for comment.
Russia's only major oil storage facility, the floating storage vessel Belokamenka located in the Barents Sea, can hold 2.6 million barrels.
An industry source said that even though Belokamenka is not full at the moment "you will need 365 like it to take off 2 million bpd from the market".
The position is different with Saudi Arabia, OPEC's leading producer. Unlike in Russia, where around a half of oil production is in private hands, Saudi Arabia controls all of its output via state-owned Saudi Aramco.
The company has a large fleet of super-tankers which can be used to store oil at sea and also owns or leases oil storage facilities around the world.
Russia sells a big chunk of its oil to trading houses and oil majors, thus leaving the decisions where and how to store crude to its buyers.
Mikhail Krutikhin, a partner with RusEnergy consultancy, said Russia could not influence oil prices through export cuts and joked that more drastic measures might be needed.
"There is no real way for Russia to support prices, only to make a revolution some oil producing country," he said. (Additional reporting by Olesya Astakhova; editing by Elizabeth Piper and Giles Elgood)