Measuring device used in a four-parameter measuring system and in a high temperature and high pressure condition
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United States of America Patent
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Mar 24, 1998
Grant Date -
N/A
app pub date -
Jul 18, 1996
filing date -
Jun 7, 1996
priority date (Note) -
Expired
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Abstract
A measuring device used in a four parameter measuring system for measuring simultaneously temperature, pressure, flow rate and steam quality of steam injection profiles during heavy oil recovery by steam injection, comprising: a cable cap, arranged at the top of the device; a measuring section, connected with the cable cap and comprising a metal case, three first pressure sensors and a thermoelectric couple; the first pressure sensors and the thermoelectric couple being longitudinally arranged in the case; a thermal protection section used for safe transmission of the data measured by the sensors and the couple; a thermal isolating section connected to the lower part of the section and a data acquisition, conversion and storage system under the control of the single-chip processor. The pressure and temperature data measured respectively are transmitted to the data acquisition, conversion and storage system and stored therein, so that the temperature, pressure, flow rate and steam quality can be calculated after the device is raised through the borehole in its return to the ground.
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