Measuring device used in a four-parameter measuring system and i

Details Measuring device used in a four-parameter measuring system and i Measuring device used in a four-parameter measuring system and i

1996-07-18

1998-03-24

Williams, Hezron E.

Measuring and testing

Borehole or drilling

7315222, 7315252, 7315212, 166252, 374 42, 374136, 374 45, E21B 4706, E21B 33124, E21B 4700, G01K 1706

Patent

active

057315175

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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