DEVICE FOR INVESTIGATION OF BED FLUIDS Russian patent published in 1999 - IPC

FIELD: oil and gas production industry. SUBSTANCE: this relates to devices intended for investigation of physical properties of bed fluids for determining relation of pressure-volume-temperature (PVT) and also for determining viscosity of oil and content of water in it. For solving aforesaid problems, chamber of device is provided with valve unit in its upper part, thrust ring, and adapter. Connected to adapter is one of additional distributing units with pressure gauge. This additional distributing unit is installed on rod of hydraulic actuator. Distributing unit of measuring chamber is connected to valve unit. Made in rod of hydraulic actuator is capillary in the form of sharpened needle which is connected with all distributing units. Rigidly secured on rod is dial of measuring instrument. Secured in lower part of rod is mechanical drive made in the form of screw and nut. Measurement of oil viscosity is performed by measurement of differential shown by pressure gauges of additional distributing units at displacing oil through capillary of rod. Pressure indication is read from pressure gauge of distributing unit which is connected to valve unit. Change of volume is read from linear scale and dial of measuring instrument installed in hydraulic actuator. EFFECT: higher efficiency. 1 cl, 1 dwg