초록 ▼

The fluids to be studied are placed in a chamber (13) of variable volume delimited by a piston (5) that can be moved by hydraulic device (24) in a cavity of a body (1). An endoscope (18) allowing to view the inside of the chamber and notably to see the orifices of two diametrically opposite pipes (1

The fluids to be studied are placed in a chamber (13) of variable volume delimited by a piston (5) that can be moved by hydraulic device (24) in a cavity of a body (1). An endoscope (18) allowing to view the inside of the chamber and notably to see the orifices of two diametrically opposite pipes (14, 15) that communicate the cell with the outside is placed behind a transparent porthole (8) closing the end of the chamber opposite the piston. The body (1) can swivel about a pin (26), which allows achievement of equilibrium and also to draw off a particular phase of a stratified multiphase fluid by placing the orifice of one of pipes (14, 15) within this phase. A pressure detector (19) is included in the wall of the piston so as to decrease practically any dead volume likely to distort the measurements. A single body can contain two cells placed side by side, at least one having a transparent wall. The device can be used for studying fluids, notably petroleum fluids.

대표청구항 ▼

[ We claim:] [1.] A device for measuring thermodynamic properties of a fluid sample at high pressures and high temperatures including a corrosive fluid sample comprising: a thermostatically controlled enclosure, a rigid containment body placed in the enclosure, provided with at least one elongated c

[ We claim:] [1.] A device for measuring thermodynamic properties of a fluid sample at high pressures and high temperatures including a corrosive fluid sample comprising: a thermostatically controlled enclosure, a rigid containment body placed in the enclosure, provided with at least one elongated containment chamber of variable volume for containing the fluid sample, limited by a piston moving along a direction of elongation of the at least one elongated containment chamber and a control for controlling communications with outside of the at least one elongated containment chamber, a transparent block forming a terminal wall of one of the at least one elongated containment chamber, opposite the piston, a sealing device for fastening the transparent block to the rigid containment body, a display for viewing an inside of one of the at least one elongated chamber through the transparent block, a fluid control device including pipes controlled by valves, opening into the at least one elongated containment chamber in proximity of the transparent block and laterally shifted on either side of the direction of elongation of the at least one elongated containment chamber, and a device for selectively swivelling the at least one elongated containment chamber about a pin perpendicular to the direction of elongation of the at least one elongated containment chamber to shift an orifice of at least one of the pipes into or within a phase of the fluid sample.