Schlumberger

Tech Report: MAGNOGARD Magnet Captures 82% of Total Ferrous Debris Recovered in Azerbaijan Well

Operator uses openhole magnet to collect 22 kg [48.5 lbm] large debris and swarf, enabling successful screen deployment

MAGNOGARD Magnet Captures 82% of Total Ferrous Debris Recovered in Azerbaijan Well

Publication Date: 09/18/2017

In preparation for screen deployment, an operator planned to drill out the 9 5⁄8-in casing shoe track and 81 m [265.75 ft] of the 8 1/2-in openhole section, pull back to the shoe, run back to TD, and perform flow-through screen tests. To reduce the risk of packoff around large-OD tools during this operation and mitigate problems during future completion operations, the operator deployed the MAGNOGARD openhole magnet to collect potentially damaging downhole debris.

The operator incorporated tandem 6 7/8-in MAGNOGARD magnets into the drillstring—collecting a total of 22 kg [48.5 lbm] of ferrous debris, such as magnetized pipe dope and metal swarf. The MAGNOGARD openhole magnets recovered nearly seven times more debris than the surface magnets, enabling the operator to run and install the screens with no issues.




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