An experimental device for measuring the temperature and pressure of multi-cavity liquid

Abstract

The invention provides an experimental device for measuring the temperature and pressure of a multi-chamber liquid, that is, a multi-chamber high-temperature and high-pressure liquid experimental device, comprising a multi-chamber flange, a thermal cycle mechanism, a plurality of temperature-pressure split heads and a plurality of liquid fillers, each of which is The upper part of the pressure sub-head has two branch pipelines, and the two branch pipelines are respectively provided with a temperature transmitter and a pressure transmitter, and the lower end of each of the temperature-pressure sub-heads is connected with a fixed joint extending out of the mounting hole; The transmitter and the pressure transmitter respectively measure the temperature and pressure of the liquid in the accommodating cavity, and transmit the measured temperature and pressure signals to an external recorder through an external cable. The invention realizes the circulation heating function of the air-free heat-conducting oil in the well, and has the advantages of high safety, high use efficiency and simple operation.

Description

technical field [0001] The invention relates to the field of heavy oil production, in particular to an experimental device for measuring the temperature and pressure of multi-cavity liquids suspended and fixed on the wellhead flange of an indoor high-temperature simulated oil well. Background technique [0002] In the field of petroleum production, the steam injection packer is an indispensable downhole tool in steam huff and puff, steam flooding, SAGD, incineration oil layer and steam injection assisted thermal recovery supporting technology in the development of heavy oil. Its quality directly affects heavy oil. Success or failure of development process measures. 60%-70% of the sealing power of the seals of the steam injection packer comes from the volume expansion of the liquid when it is heated. However, most designers cannot control the expansion liquid volume of the steam injection packer, so that the sealing power of the seals cannot just meet the requirements. Large...

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Problems solved by technology

60%-70% of the sealing power of the seals of the steam injection packer comes from the volume expansion of the liquid when it is heated. However, most designers cannot control the expansion liquid volume of the steam injection packer, so that the sealing power of the seals cannot just meet the requirements. Large sealing power leads to leakage of the cylinder seal, while small sealing power leads to poor sealing effect

However, the existing experimental devices for studying the relationship between saturated vapor pressure and temperature are all designed for teaching and demonstration, and all have transparent observation windows, so the structural strength is limited to a certain extent; Low efficiency; the heating method is direct contact heating of the heat source, and the experimental device is placed naked in the air, which is poor in safety

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