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CASE HISTORIES
CASE 5 -
PackScan™ Confirms Competent Annular Pack
When two SpectraScan™ Images
run over two months time both
indicated a possible void in the
lower section of this wells lower
gravel pack; a PackScan™ Image
was obtained to make a direct
measurement of the annular
gravel pack in that region. The
data confirmed that no void existed
in the gravel pack completion.
As confirmed by the operator, it is
noted that the lower interval where
no tracer is found is most likely
filled with formation sand. The
slight decrease in count rate across
this interval may also indicate
this to be formation sand that is
packed to a lower porosity than
the gravel pack sand above it.
With the formation sand in the
annulus prior to the frac pack no
stimulation across the lower section
was obtained as indicated by the
lack of traced frac material.
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