Borehole pressure and temperature measurement system
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United States of America Patent
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-
Nov 17, 1992
Issued Date -
N/A
app pub date -
Sep 27, 1990
filing date -
Oct 17, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system is provided for measuring both the temperature and pressure of fluid in a borehole utilizing a single small diameter tube extending from the surface to the desired downhole test location in a borehole. Downhole fluid pressure is transmitted through the small diameter tube, while a sheathed thermocouple or fibre optic line extending along the flow path of the tube is used for transmitting downhole fluid temperature information to the surface. A continuous surface read-out of both pressure and temperature is thus possible, and the temperature read-out may be used to both monitor downhole fluid temperature and increase the accuracy of the fluid pressure measurement system.
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