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Services > Wireline
Logging Services > Imaging Services |
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Imaging
Services |
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Imaging
Services
- Electric Micro Imaging log
- Circumferential Borehole Imaging Log
- Magnetic Resonance Imaging Log
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Electric
Micro Imaging
The Micro Electrical Resistivity Imaging service
provides simultaneous acquisition of high-resolution
resistivity images for enhanced reservoir evaluation
and improved wellsite operating efficiency.
Combining the full coverage of the acoustic
imager with the wide dynamic range of the Micro
Electrical Resistivity Imaging results in detailed
geological and petrophysical information not
other-wise available from either measurement
independently.
Capabilities
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- Acquisition of both resistivity and acoustic
borehole image log may be combined simultaneously
- 60% borehole coverage in 8-in. borehole of
micro electrical resistivity image
- Improved data quality in highly deviated wells
with powered standoff
- Full range of geoscience products and services
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| Applications
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- Identify geological features
Structural dip
Faults
Folds
Fractures
Formation boundaries
- Describe porosity
Porosity variations
Secondary porosity
- Identify borehole features
Borehole breakout
Borehole geometry
Pipe scars
- Analyze depositional environment
Bedding types
Bedding frequency
Concretions
Nodules
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Circumferential
Borehole Acoustic Scanning
The circumferential borehole imaging log or
circumferential acoustic scanning tool is an
acoustic device that produces images of the
borehole wall. These images can be used for
formation evaluation and borehole inspection
in both clastic and carbonate environments.
The tool can also be run in cased holes for
casing inspection applications and combined
with the wide dynamic range of the micro electrical
resistivity image results in detailed geological
and petrophysical information not other-wise
available from either measurement independently.
Applications
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- Present a complete 360' borehole image
- Provide orientation and correlation of whole
cores
- Dip determination
- Detect fractures, vugs, and washouts
- Determine sand/shale ratios in thin-bedded
intervals
- Provide high-resolution acoustic caliper data
- Provide borehole geometry
- Supply detailed borehole images in fresh-,
salt-, and oil-base muds
- Locate and evaluate internal casing corrosion,
mechanical wear, defects, and perforations
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Magnetic
Resonance Imaging Log
The Magnetic Resonance Imaging Log (MRIL) service
uses the principle of nuclear magnetic relaxation
to provide formation evaluation petrophysical
data including effective porosity, irreducible
water saturation, movable fluid situation, permeability,
and grain-size and pore-size distribution.
The measurement of the MRIL service primarily
responds to the hydrogen protons in the pore
space of the formation. This allows a measure
of porosity. MRIL porosity, in contrast to compensated
neutron porosity, does not include the hydrogen
bound in the matrix of the rock, thus providing
a lithology and clay-independent porosity value.
Applications
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- Improved reserves and producibility estimations
- Lithology-independent porosity and effective
porosity
- Irreducible water saturation
- Permeability
- Pore- and grain-size distribution
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| Operating Advantages |
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- Reduces rig time by combining with other
logging services
- Increases logging speeds to 15-30 ft/min
- Runs in standard mud systems
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