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начальное пластовое давление stresses
O&G	original reservoir pressure (MichaelBurov); virgin formation pressure
O&G, sakh.	initial bottomhole pressure (IBHP); initial flowing pressure (IFP)
O&G. tech.	original pressure
oil	initial formation pressure; initial reservoir pressure; virgin pressure

начальное пластовое давление: 12 phrases in 4 subjects

Oil / petroleum	4
Oil and gas	2
Oil and gas technology	2
Oilfields	4