Borehole pressure and temperature measurement system

Details Borehole pressure and temperature measurement system Borehole pressure and temperature measurement system

1989-10-17

1990-12-11

Williams, Hezron E.

Measuring and testing

Borehole or drilling

Downhole test

374136, E21B 4706

Patent

active

049761420

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 line extending along the flow path of the tube is used for transmitting downhold 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.

REFERENCES:
patent: 2547876 (1951-04-01), Krasnow
patent: 2685798 (1954-08-01), Goble
patent: 3895527 (1975-07-01), McArthur
patent: 3898877 (1975-08-01), McArthur
patent: 4010642 (1977-03-01), McArthur
patent: 4568933 (1986-02-01), McCracken et al.

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