Sensor system

Details Sensor system Sensor system

2006-11-28

2006-11-28

Tsay, Frank S. (Department: 3672)

Wells

Processes

With indicating, testing, measuring or locating

C166S297000, C166S250150

Reexamination Certificate

active

07140434

ABSTRACT:
A sensor for installation in an underground well having a casing or tubing installed therein, the sensor comprising: a sensor body that can be installed in a hole formed in the casing or tubing so as to extend between the inside and outside of the casing or tubing; sensor elements located within the body and capable of sensing properties of an underground formation surrounding the well; and communication elements located within the body and capable of communicating information between the sensor elements and a communication device in the well; wherein the sensor body also includes a portion that can be sealed to the casing or tubing to prevent fluid communication between the inside and the outside of the casing or tubing through the hole when the sensor body is installed therein. The invention also provides systems incorporating such sensors, methods for installing sensors and applications of such systems. The sensors can include pressure, temperature, resistivity, conductivity, stress, strain, pH and chemical composition sensors.

REFERENCES:
patent: 4216536 (1980-08-01), More
patent: 5692565 (1997-12-01), MacDougall et al.
patent: 6464021 (2002-10-01), Edwards
patent: 6896056 (2005-05-01), Mendez et al.
patent: 2002/0195247 (2002-12-01), Ciglenec et al.
patent: 2003/0137429 (2003-07-01), Clark et al.

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