Nanofiber strain gauge sensors in downhole tools
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 16, 2018
Issued Date -
N/A
app pub date -
Jul 25, 2014
filing date -
Jul 25, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A downhole drilling tool may include a strain gauge inside a rolling-bearing element. For example, the downhole drilling tool may include a rolling-bearing element having an inner race, an outer race, and one or more bearings disposed between the inner and outer races; and a strain gauge disposed on an interior surface of the rolling-element bearing, the strain gauge including at least one circuit formed by (1) a first substrate and a second substrate defining a gap therebetween and having first conductive fibers and second conductive fibers, respectively, extending therefrom into the gap in an intermingling configuration, (2) an electrical connection between the first and second substrates, and (3) an electrical resistance sensor arranged within the electrical connection.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
HALLIBURTON ENERGY SERVICES INC | 3000 N SAM HOUSTON PARKWAY E HOUSTON TX 77032-3219 |
International Classification(s)

- 2014 Application Filing Year
- E21B Class
- 4199 Applications Filed
- 3550 Patents Issued To-Date
- 84.55 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Chen, Hau Jiun | Singapore, SG | 9 | 45 |
# of filed Patents : 9 Total Citations : 45 |
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Patent Citation Ranking
- 1 Citation Count
- E21B Class
- 18.80 % this patent is cited more than
- 7 Age
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