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Ruggedized downhole tool for real-time measurements and uses thereof

Patent ·
OSTI ID:1416352
The present invention relates to ruggedized downhole tools and sensors, as well as uses thereof. In particular, these tools can operate under extreme conditions and, therefore, allow for real-time measurements in geothermal reservoirs or other potentially harsh environments. One exemplary sensor includes a ruggedized ion selective electrode (ISE) for detecting tracer concentrations in real-time. In one embodiment, the ISE includes a solid, non-conductive potting material and an ion selective material, which are disposed in a temperature-resistant electrode body. Other electrode configurations, tools, and methods are also described.
Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
Patent Number(s):
9,863,243
Application Number:
14/698,773
OSTI ID:
1416352
Country of Publication:
United States
Language:
English

References (9)

Ion selective electrodes journal April 1978
A Novel Potentiometric Solid‐State Iodide Sensor journal March 2007
A New Cesium Ion Selective Graphite Rod Electrode Based on Cs‐Molybdophosphate journal January 2004
Characterization of home-made silver sulphide based iodide selective electrode journal September 2010
Potentiometric determination of the activity of fluoride ion in aqueous solutions at high pressure and high temperature journal January 1988
Characterization of geothermal fluid flows at Sumikawa geothermal area, Japan, using two types of tracers and an improved multi-path model journal June 2004
A potentiometric determination of cesium ion journal September 1971
Analysis of tracer test data, and injection-induced cooling, in the Laugaland geothermal field, N-Iceland journal December 2001
A New Membrane-Type pH Sensor for Use in High Temperature-High Pressure Water journal January 1980

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