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Home : Technical
Resources : Test Reports
DUOLINE is a well established
product having been used successfully in numerous countries in
any
and all oil field conditions, and as such, quality and safety trials
have been conducted on the full product range. We value the results
as part of the fundamental support of the quality and integrity
of our business. Please click on any one of the titles to view
the
article summary.
The testing summaries below illustrate a cross sampling of in-house
as well as customer funded testing that demonstrate DUOLINE’s
ability to perform in extreme conditions typically encountered by
oilfield tubulars.
WEATHERFORD PERFORATION TEST
WEATHERFORD ARTIFICIAL LIFT SYSTEMS, LAFAYETTE, LOUISIANNA,
1998
A DUOLINE 20 lined 3-1/2" tubing joint was run in a
test well, and perforated using a jet charge type perforator
to analyze any potential liner damage caused by the perforating
process. A pack-off was set in the tubing joint to allow pressurizing
the tubing to 500 psi with water during the first shot. The
second charge was set off while the tubing was dry and had
no pressure. It was concluded that the perforation done under
pressure with water caused little or no disturbance to the
liner outside the perforated hole. The perforation made while
the tubing was dry and at ambient pressure caused significant
damage and unraveling of the fibreglass around the perforation.
In addition, it was concluded that neither perforation caused
damage sufficient enough to obstruct any wireline maintenance
that might be required after the perforation.
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