MEASURING UNIT OF PLANT FOR DETERMINING DEBIT OF OIL WELL Russian patent published in 2006 - IPC E21B47/10 

FIELD: oil industry, in particular, engineering of plants for automatic measurement of mass flow of gas-liquid mixture extracted from oil wells.

SUBSTANCE: unit includes by calibrated volume the measuring vessel in form of cylinder, mounted on horizontal off-center tubular axis, pinned on ball bearings, pipelines for inlet and outlet of product of well into measuring vessel and metallic frame. Inside the vessel, separating piston is positioned in form of elastic resilient ball. On end sections of measuring vessel, sensors of piston position and weight sensors electrically connected to control block are built in. Off-center tubular axis is provided with quiescently held levers and resilient sensitive elements in form of tubular torsion bar, connected by one end to off-center axis by means of anchor band, and by other end, with possible axial movement, to a thimble. Thimble is connected hydraulically to pipeline for inlet or outlet of well product being measured and is quiescently attached to frame post. Weight sensor is by one end connected to quiescent lever of off-center axis, and by other end - to support of tubular torsion bar. Aforementioned ball bearings and supports of tubular torsion are attached to platforms, mounted on balls of frame with possible limited linear movement along the frame.

EFFECT: increased reliability of operation and increased precision of measurements, prevented manual labor during transfer of measuring vessel to off-center position and decreased time costs of realization of measuring operations.

2 dwg