Cofferdam over a well head installation
COFFERDAM OVER A WELL HEAD INSTALLATION
In 2015, the CAPE VLT-320 was used to install a 5.7 meter diameter cofferdam over a leaking plugged and abandoned oil well in order to repair the leak.
The pile was divided into two bolted sections of 11.3 and 6.7 meter and installed at Weeks Island in Louisiana, USA. The first section was placed onto the mudline, after which the CAPE VLT was placed on top and used to vibrate the first section to target penetration.
After the CAPE VLT was removed, the second section was placed and bolted to the first section. Finally, the CAPE VLT was placed on top again to vibrate the complete cofferdam to final penetration.
Application details
Leaking well containment
Caisson
1.2m
15m
PILE DETAILS
Caisson
Section 1: 11.3m / Section 2: 6.7m
52t and 34t
45mm
5.7m
1 (2 sections)
PROJECT DETAILS
November 2015
USA
Weeks Island, Louisiana
Oil & gas
Cofferdam
Shell
Tetra Technologies
Main Reasons for solution choice
CAPE VLT-320
CAPE VLT-320
320kgm
500t
vibro
lifting
technology
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