"Flare stack" of an FPSO.
Floating Production Storage and Off-
loading platform (FPSO). Common “set up”
with drill rig, off-loading buoy and a tanker getting loaded.
For obvious reasons are most focus on
all equipment under the sea surface.
We are planting houndreds of "Ocean Bottom Nodes"(OBN), on the sea bed underneath various
oil installations, spread a carpet. These nodes record data, which after the nodes have been recovered again, and data extracted, assist the client in analysing the reservoir beneath the seabed.
Screen shot of the monitor, used for DP navigating around obstacles. “number clusters” in neat rows indicate/identify “Nodes”(recording devices) that we plant all around, and under the installation and equipment.
(for better picture, click on it)
“3D Passage planning”; There are
restrictions on how close we are allowed to come various types of equipment,
both vertically and horizontally in the water column. The sequence of event is very carefully
planned.
DP operator(Bridge Officer), handing over the watch, incl. information on the stage of the operation.
Barges around installations
complicate the operation, bringing additional anchor chains etc, into the water
column.
Senior Systems Mechanic on “Node deck”, launching the basket
containing 6 “Nodes”, down to working depth for the waiting ROV(Remotely
Operated Vehicle), which in turn “ fly out” and place each individual node in
its dedicated position on the sea bed.
Instrument room. “Hub” of the
operation and “open” radio communication with all departments involved, ROV-pilots
(in the back ground), Observers (preparing the Nodes), Node deck and Bridge (DP
operators, moving Hugin in position).
ROV pilots busy, flying and planting nodes.
Single Buoy Mooring(SBM) “Loading buoy” where Tanker vessels connect
and stay for one or two days, filling up from the FPSO. Off course also properly secured
with anchors and chains/wires.
How it looks on the "Win frog" screen, vessels approach, and the ROV "flying" out with the node.
Munin Explorer, is our source vessel,
she is moving over the Nodes “popping” her Air guns. This sound wave will penetrate
the sea bed, and reflect back to the Geo and Hydrophones of the Nodes. Data is
recorded and after the Nodes have been picked up again, it will be analysed. First onboard and later by the clients.
(Below two Photos
from my previous 2D/Source vessel.)
Explaining how the actual "air gun" (source) arrangement looks
like. “Float” on top and many gun-devices hanging underneath. The “popping” is
very scientific, the volume of air, the exact sequence the individual guns are
fired. We are talking milliseconds. The individual distance in between all
guns, the depth etc…
Fast Rescue Boat training in North
Sea. Frequent training of our on board rescue team.
Helicopter monitoring, from our
bridge. These operations can be quite frequent, sometimes two landing per day. We’re
often crew changing by means of chopper as well.
