Title:
DOWNHOLE DETECTION SYSTEM USING CARBON NANOTUBE FET
Document Type and Number:
Japanese Patent JP2014238004
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a detector that enables a downhole tool to effectively collect various data by high sensitivity or high selectivity during excavation of an oil field or a downhole environment.SOLUTION: A detector includes a transistor that has at least one CARBON NANOTUBE electric field effect transistor (CNTFET) 100 configured or designed to be operated by a downhole within a bore hole.
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Inventors:
YOSHIUCHI HIDETOSHI
YAMATE TSUTOMU
JOHN ULLO
MATSUMOTO KAZUHIKO
YAMATE TSUTOMU
JOHN ULLO
MATSUMOTO KAZUHIKO
Application Number:
JP2014155198A
Publication Date:
December 18, 2014
Filing Date:
July 30, 2014
Export Citation:
Assignee:
SCHLUMBERGER HOLDINGS
International Classes:
E21B49/08; E21B47/00; G01N27/28; G01N27/414; G01N37/00
Domestic Patent References:
| JP2895561B2 | 1999-05-24 | |||
| JPH0426432B2 | 1992-05-07 | |||
| JP2005079342A | 2005-03-24 |
Foreign References:
| US20070257830A1 | 2007-11-08 | |||
| US20040045350A1 | 2004-03-11 | |||
| WO2007099642A1 | 2007-09-07 |
Attorney, Agent or Firm:
辻居 Koichi
Sadao Kumakura
Fumiaki Otsuka
Takayoshi Nishijima
Hiroyuki Suda
Hiroshi Uesugi
Sadao Kumakura
Fumiaki Otsuka
Takayoshi Nishijima
Hiroyuki Suda
Hiroshi Uesugi