DEVICE FOR DETERMINATION OF POROSITY AND PERMEABILITY OF ROCK SAMPLES Russian patent published in 2008 - IPC G01N3/00 G01N15/08 

FIELD: physics; measurement.

SUBSTANCE: invention may be used in many production industries, in laboratory practice of mining, geological, oil and gas research institutes and enterprises in performance of physical and chemical analyses. Device contains frame formed with top and bottom cross beams and two stands. Core holder is installed inside the frame, and it incorporates hollow casing with radial channel, top and bottom covers, upper and lower puncheons, including axial and radial channel, cartridge with rock sample installed inside of it. Device contains cylindrical support with through aperture, upper edge of which is connected to the lower cross beam of frame, and lower edge - to bottom that includes prop fixed in its axial opening and hingedly connected to the bottom edge of lower puncheon. Pneumatic chamber that incorporates casing with radial channel and piston is installed inside the frame. Casing of pneumatic chamber is rigidly fixed to spring-loaded fork supports with the possibility of their hinge sliding to sealed connection with upper edge of core holder top cover, through channel is arranged inside top cover. Pneumatic motor is connected to radial channel of casing, balloon with gaseous helium or nitrogen is connected to radial channel of top cover and radial channel of lower puncheon. Trap is connected to valve of top cover body radial channel, and piezometer is connected through appropriate valves.

EFFECT: simplification of design, higher reliability of its operation and reduction of cost at required efficiency.

3 cl, 6 dwg