Casing Evaluation and Inspection SoftwarE (CASE)
| CASE uses
data from the CAST-V™ tool to provide accurate casing
evaluation in both the image and cased hole mode. CASE
software provides precise casing ID and thickness
presentations that allow easy interpretation of casing
damage. CASE software works with CAST-V tool data
recorded in either the image or cased hole mode. |
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| The
CAST-V tool in the imaging mode can be used to monitor
wear on the inner surface of the casing string. Its high
vertical and horizontal resolutions nearly eliminate the
chance of missing flaws in a string of pipe, thus
preventing possible long-term problems. In the cased
hole mode, the CAST-V tool provides accurate casing ID
and casing thickness measurements. |
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| CASE
software provides detailed information on the condition
of the casing—preventing minor problems from becoming
major problems. CASE software consists of several
different displays that can be adapted to the customer
requirements. These presentations range from the raw
amplitude and corrected travel time data to a
sophisticated 3- dimensional image that provides an
excellent view of casing damage and corrosion. |
| » CASE Software Features |
| CASE
software contains the following features: |
- Delivers a more reliable indication of casing
condition
|
- Works with existing logging procedures and CAST-V
tool data
|
| » CASE Software Benefits |
| CASE
software offers the following benefits: |
- Improves casing evaluation for both inner and
outer defects
|
- Corrects for tool eccentricity thus helping to
distinguish even minute casing problems``
|
- Log presentations can be customized to meet the
specific requests or needs. Presentations include raw
data, segmented curves and images, including
3-dimensional displays
|
- Joint and depth listings of defects allow easy
input into other programs or a simple method to
monitor known casing deformities
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| This
log effortlessly shows where a packer was set and did
not release properly. The metal was peeled up when the
packer was pulled. Track 1 provides gamma ray for
correlation along with eccentricity and ovality.
Eccentricity consists of both tool and casing
eccentricity while ovality measures the casing ovality.
Track 2 is the amplitude of the first arrival and can be
used to visually indicate casing damage. Track 3 is an
eccentricity corrected travel time for the first
arrival. This will be used in determining casing
internal diameter or radius. The calculated pipe radius
is shown in Track 4. Track 5 shows the minimum, maximum
and average of the pipe radius PRAD. This allows an easy
indication of pipe wear. This log shows how both
visually and numerically CASE can assist in casing
evaluation. |
| » Health, Safety, &
Environmental Benefits |
- Helps customers to monitor and prevent
catastrophic casing problems
|
- Proper CASE™ software usage allows monitoring of
casing erosion / corrosion /
rectification
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| Inputs |
Data from the CAST-V
including: Travel Time, Fluid Travel Time, Pipe Thickness |
| Outputs |
Average, Minimum, and Maximum
of Casing ID or Radius, Thickness. Images of Casing ID and
Thickness. Text reports of casing abnormalities. Joint counter
and listing of joint defects. Three-dimensional image of
casing condition. |
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