QL40-nGEN – Neutron Generator

Posted by on Sep 12, 2017 in Probes, Products, Tools In Development | Comments Off on QL40-nGEN – Neutron Generator

QL40-nGEN – Neutron Generator
Neutron Generator Probe for logging porosity without radioactive source

Neutron emission from grounded target at generator end with detection
in a compensated probe configuration using near & far detectors

Description

Mount Sopris Instrument Company together with Starfire Industries LLC are developing a new neutron probe that eliminates the use of radioactive materials for neutron production. This innovative solution will provide a welcome addition for well loggers and geophysicists who are restricted from using Am-Be or Deuterium-Tritium (D-T) sources.

 

Using the 4 Curie equivalent, high-output, long-life electric Deuterium-Deuterium (D-D) fusion neutron generator, the QL40-nGEN provides radiation on/off capability, increasing safety for operators and the environment, while reducing regulatory burden associated with radioactive sources.

Mount Sopris Starfire Industries

 

Starfire Industries’ patented nGen™ technology allows for neutron generation from a grounded target located at the end of the accelerator head.  This end-mounted target allows very close coupling with detectors for innovative near/far detector combinations to maximize detector sensitivity and fidelity of measurements in and around the borehole to take advantage of the 2.5 MeV monoenergetic neutron’s increased sensitivity.  The high-pressure housing is sized for small diameter logging and all components are designed to withstand high ambient temperatures.

The QL40-nGEN downhole logging tool is stackable within Mount Sopris’ Quick Link (QL) product line or it can be run as a standalone tool. It can be run in any borehole environment using the MATRIX or SCOUT data acquisition consoles.  A preliminary rendering of the integrated neutron probe is shown below.

 

Neutron Generator Probe Borehole Logging

Rendering of MSI/Starfire neutron probe features

 

Borehole Logging Neutron Probe

New neutron probe approximate dimensions

 

Applications

  • Quantitative In-situ Porosity
  • Petrophysical Properties
  • Aquifer Quality and Delineation
  • Moisture Content of Unsaturated Media
  • Used with other logs, can detect gas zones and identify gas-liquid contacts

 

Operating Conditions

Borehole Fluid
[X] Water
[X] Mud
[X] Dry

Casing
[X] Uncased
[X] PVC Borehole
[X] Steel

Centralization
[_] Required
[X] Not Necessary

 

Features & Benefits

 

New! Mt. Sopris/Starfire Neutron Probe
  • Avoids radioactive material with safe D-D fusion
  • No specialized storage required
  • Ease of transport
  • Simple permit for handler
  • Neutron emission at end of generator allows much closer near and far placement of detectors
  • Generator remains off until switched on
  • Neutron generator integrated in the tool
  • HV supply & RF generator integrated in neutron generator
  • Onboard microcontroller with serial communications
Compare this to a Conventional Neutron Probe
  • Obtain your own radioactive source
  • Purchase costly, secure storage of source
  • Procure safe transport of source
  • Professional license required for handling
  • Neutron emission remains far from detectors
  • Insurance
  • Risk of lost source in the well
  • Difficult for water and environmental use

 

Specifications – Metric/Imperial

Base Yield………………………….. 107 n/s

Neutron Energy…………………… 2.5 MeV DD

Ion Source Type…………………… Electrodeless RF

Lifetime…………………………….. 500 hours operational warranty or 12 months on shelf

Power and Operation

Input Voltage……………………… 18V, 100V DC regulated

Input Power……………………….. 100W base, 250W option

Operating Voltage……………….. 120-140 kV

Operating Temperature………… 85˚C base (125˚C shallow well)

Operating Pressure………………. 2900 psi (200 bar)

System Information

Outer Diameter, Housing………. 1-11/16” (43 mm)

Inner Diameter, Components…. 1.30” (33 mm)

Length………………………………. approximately 78” (198 cm)

Weight………………………………. approximately 25lbs (11.34 kg)

 


QL Stack Possibilities

  • QL40nGEN + QL40GR (Gamma) + QL40DEV (Deviation): Exploration, Borehole Deviation
  • QL40nGEN + QL40GR (Gamma): Exploration, Petrophysical Properties
  • QL40nGEN + QL4SGR (Spectral Gamma) + QL40ELOG (Resistivity): Groundwater Suite tools, Quantitative Analysis, Lithology, Porosity Estimates

 

Learn More about the Starfire 100B

Data Sheet

 

The anticipated product release of this new tool is early 2018.

 

 

 

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