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6 DLB BIG CHIEF
The 220’ x 74’ x 14’ DLB BIG CHIEF is a true
combination derrick / laybarge equipped with a dynamically rated
revolving derrick configured with both main and auxiliary blocks, 100
tons and 10 tons respectively. The DLB BIG CHIEF is outfitted with a
seven point mooring system, capable of pulling 54 tons per winch drum.
The mooring system is configured with 4,000' x 1.25" wire rope per
drum and seven 14,000 lbs customized anchors. The barge is also
configured with two 36” spud wells.
In pipeline mode, the DLB BIG CHIEF is configured to lay up to a 24"
single pipeline or up to a triple 8" line. The barge is outfitted with
two welding stalls and one x-ray stall. The adjustable 37' stinger can
smoothly transition a pipeline to the seafloor at the beach or out in
much deeper water. The DLB BIG CHIEF has a 50 kips tensioner, electric
welding machines, two 1600 CFM compressors, three 6x6 Peerless jet
pumps which supplies the stern hose reel which has 600’ of bundled air
and jet hoses which feed the custom adjustable burial jetsled.
The DLB BIG CHIEF can be modified to recover damaged pipelines and
trunklines of any diameter. The recovery method utilizes a BISSO
MARINE designed and engineered "recovery line" which can provide up to
100 tons of force to pull a damaged line on to the deck. The recovery
system accommodates both pigged and unpiggable “contaminated”
pipelines which are fully contained inside a pollution containment
area. The entire system is "cold" allowing dirty or "hot" lines to be
safely recovered then disposed.
The large size of the DLB BIG CHIEF reduces weather downtime for
customers thus enabling productive lay and burial operations in
otherwise unworkable conditions. The large open deck of the DLB BIG
CHIEF can accommodate over 25 miles of 6" pipe storage.
The barge has comfortable accommodations for 56 persons offering
satellite communications, fax, data and television.
 DLB BIG CHIEF SPEC SHEET
DLB BIG CHIEF laying and
burying pipe simultaneously
DLB BIG CHIEF removing
caissons in gulf of mexico
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