DEVICE FOR STUDYING THE PROCESS OF FILTERING A FLUID IN POROUS MEDIUM Russian patent published in 1997 - IPC

FIELD: oil driving from porous medium. SUBSTANCE: device has a case with porous medium, base and additional collimators with radiation detector and radiation source provided with electric drives, hydrodynamic unit hydraulically coupled to the case, computer electrically coupled to the radiation detector, base and additional electric drives and hydraulic unit. Additional collimator has replaceable head with varied size of collimation aperture and is installed so that it would be placed coaxially to the base collimator at opposite sides of the case and has shielding screen. The base and additional collimators are made of tungsten-copper-nickel alloy. EFFECT: higher productivity. 3 cl, 2 dwg