FORMATION TESTING DEVICE Russian patent published in 2016 - IPC E21B49/08 

FIELD: mining.

SUBSTANCE: invention relates to producing horizons in oil and gas wells testing devices. Device includes composite housing made of upper and lower parts interconnected by thread. In upper part in monolithic housing part standing type sampling chambers are made, which inlet channels are plugged with shut-off sleeves, interacting with cams. Monolithic housing part by means of thread is connected with bushing coaxially connected with branch pipe to make central axial channel to supply fluid into shut-off sleeves arrangement zone. Branch pipe lower end is made in form of socket with installed in it funnel made of elastic material, which diameter is larger than funnel diameter. Funnel edges are arranged below shutoff valve openings. Fluid intake control mechanism is installed with possibility of longitudinal movement relative to bushing. Locking sleeves, bushing, branch pipe and intake control mechanism are arranged in protective casing. Between casing and structural part there is gap for fluid flow into tube side. In device lower part hollow rod connected with fluid intake control mechanism, shutoff and equalizing valves are located.

EFFECT: technical result is device simplified design and smaller dimensions.

1 cl, 4 dwg