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опробование пласта испытателем на бурильных трубах в обсаженной скважинеstresses
O&G, sakh. drill stem test (A drill stem test (DST) is a method of formation evaluation. The test allows fluids in the formation being evaluated to flow into the drill stem and to the surface. Pressure-recording devices in the drill stem test tool measure and record pressure in the well while it is both flowing and not flowing (shut in).)