(Reuters) -Russian energy giant Gazprom said on Tuesday it was not technologically possible to switch gas transfers to Ukraine to a new entry point, as Ukraine’s gas system operator GTSOU was proposing. GTSOU earlier said it would declare force majeure on the transportation of Russian gas through the Sokhranivka entry point, with flows stopping on May 11, and proposed transferring capacity to another location, Sudzha. Gazprom said in a statement it had been notified of the force majeure but had not received any proof of the circumstances to justify it, and did not see any obstacle to continuin…