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Nuclear
Services
- Compensated Z-Density log
- Compensated Density log
- Compensated Neutron log
- Spectra log
- Gamma Ray Log
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Compensated
Z-Density log
The Compensated Z-Density log measures both
formation bulk density and the photoelectric
absorption index (Pe). These measurements allow
evaluation of complex formations through advanced
technology in lithology / porosity determination.
Applications
When combined with other logging data such as
Compensated Neutron and Spectralog, the Pe values
and bulk densities obtained from the Compensated
Z-Densilog enable accurate determination of:
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- Formation porosity and lithology
- Formation minerals
- Gas zones
- Fluid properties
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Compensated
Density log
The Compensated Density log provides a continuous
recording of the bulk density of the formations
of interest.
Applications
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- Evaluate formation porosity
- Identify lithology when used with other porosity
devices
- Locate gas when used in combination with the
Compensated Neutron Log
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Compensated
Neutron Log
Neutron logs are primarily used for identification
of porous formations and for the estimation
of their porosities. Often, it is possible to
distinguish gas zones from oil or water zones
by the comparison of a neutron log with another
porosity log or with information from core analysis.
Combination of the Neutron log with Densilog
and/or Acoustilog surveys provides accurate
porosity values, shale content, and lithological
information.
Applications
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- Porosity determination
- Locate gas (when combined with Compensated
Densilog and/or Acoustilog)
- Identify lithology when used with other porosity
devices
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Spectral
Gamma log
A Spectralog records gamma ray intensity versus
borehole depth like the conventional Gamma Ray
Log. However, the additional curves presented
make the Spectralog unique. This service can
identify the presence of potassium, uranium,
and thorium. Appearing in different combinations
and concentrations within the formation matrix,
these isotopes indicate other formation characteristics
consistent with potentially productive zones.
Applications
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- Define clay content and clay type
- Quantitative definition of natural gamma radiation
- Mineral identification
- Correlation
- Aid for fracture detection
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Gamma
Ray Log
The Gamma Ray logging tool measures the natural
radioactivity of the formation and usually correlates
with the SP Curve. The Gamma Ray tool can be
run and combined with all the other tools in
any liquid or air filled hole, either cased
or uncased. In a cased hole, a Casing Collar Log
is recorded simultaneously.
Applications
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- Make depth correlation with other logs
- Determine stratigraphic profiles
- Estimate shale content in reservoir rocks
- Delineate stratigraphic boundaries for several
production logs
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