SLEDGE DRAG Russian patent published in 2019 - IPC B62B15/00 

FIELD: vehicles.

SUBSTANCE: invention relates to vehicles, namely to sledge drag, and is intended for sampling fluid from the pipeline at the mouth of production wells in the winter season. Sledge drag contain a body with a curved bottom, rolling in the back into a flat base, side walls and a drawbar. New is that the rear ends of both side walls have convex curvilinear edges. In this case, the rear part of the flat base is bent upwards and connected to the curvilinear edges of the side walls. Body is provided with two cross-pieces made from a steel rectangular pipe arranged parallel to each other and perpendicular to the longitudinal axis body. Ends of the crossbars are fixed to the side walls. On the crossbar adjacent to the drawbar, the bottom ends of the two uprights of a rectangular steel pipe are welded to the side wall facing the drawbar. On top of the cross-beams, a heating chamber with a sampler located inside it is mounted and fastened to them by a bolted joint. Wide doorless wall of the heating chamber rests on both racks. Through holes drilled through the wall of the heat chamber are drilled from the middle and from the upper ends of the racks. In these holes from the cavity of the heat chamber, bolts are missed, the threaded ends of which protrude beyond the rack. On the protruding ends of the bolts, the doorless wall of the small heat chamber is suspended, inside which the sampler control unit is located. Doorless wall of this heat chamber is pressed to the racks with nuts wrapped on the threaded ends of the bolts. At the bottom of the flat base of the casing, two sampling cylinders are installed, each of which is fixed to a separate side wall with a collar wrapping the side wall of the cylinder. Ends of the clamps are fixed to the side walls of the bolted connection. Electrical cable of the sampling control unit and the sleeves for connection to the sampler and the pipeline are laid with rings on the flat base of the housing.

EFFECT: in proposed invention, the functionality is expanded by providing sampling of fluid from the pipeline at the well mouth.

1 cl, 3 dwg