CELL SAMPLER Russian patent published in 2019 - IPC E21B49/08 G01N1/10 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil and gas industry, in particular, to cut-off-type devices for sampling from pressure pipelines. Cell sampler consists of a housing, a probe, a piston, a piston stop, an external drive, a sample receiver, the housing is a cylindrical part of the pipeline with a guide part for only reciprocal movement of the probe, with a drain channel, at the outlet of which there is a sample receiver, the probe has a blind axial groove, in which a piston is movably installed, and a piston stop which is fixed in the outlet part of the probe, in the side wall of the probe in the deepest point of the groove there is a through window, between the piston and the probe a piston spring is installed, which tends to press the piston to the deepest point of the groove and to close the through hole, the probe is able to move inside the housing under the action of an external drive, probe has two extreme positions, in the extreme position of sampling the through window is in the extraction zone in the flow center, wherein the through opening is located along the flow direction, and in the sample discharge position, the through opening is located in the sample drain zone at the level of the drain channel, between the outer surface of the probe and the guide surface of the housing, four seals are located, wherein two of these seals are located between the sampling zone and the sample drain zone and form a sample cut-off zone.

EFFECT: high reliability of the sampled sample with simultaneous elimination of the check valve as a separate device.

8 cl, 2 dwg