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device for the study of the productivity of perforated olievoerende layers.
device for the study of the productivity of perforated olievoerende layers.
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机译:研究多孔olievoerende层的生产率的设备。
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摘要
A ball valve type, full opening bore, oil well formation tester utilizes a J-slot mechanism and vertical tool string manipulations to open and close a substantially unrestricted axial bore through the testing tool to allow formation fluid flow through the tool at the command of the tool operator.
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