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FOR VLCC OPERATING
HYUNDAI OIL DAESAN PORT PORT REGULATION(SPM)
This Operational Manual is intended to acquaint owners, charters, agents and
masters of vessels with the facilities and services available at the SPM Terminal
at Daesan, Korea and the conditions subject to which such facilities and services
are rendered.
Although the information contained in the Manual is accurate at the date of issue,
it is not intended in any way to replace other relevant and appropriate official
publications.
Hyundai Oil Refinery Co., Ltd, which operate the Terminal, cannot be
held responsible for any errors or omissions contained therein.
HEAD OFFICE HYUNDAI OIL REFINERY CO., LTD
640-6 DAEJOOK-RI, DAESAN-EUB
SEOSAN-SI, CHUNGCHEONG NAM-DO, KOREA
TEL : (041) 660-5641/6
FAX : (041) 660-5107
1. Introduction
2. Information required prior to Arrival
3. Minimum Standards of Acceptance for Tankers Calling HDO Terminal
4. Mooring Operation
5. Cargo Transfer Operation
6. Unmooring Operation
1. Introduction
This terminal is of the Single Point Mooring type and is generally called Catenary
Anchor Leg Mooring System(CALM). The place of installation is:
OFFSHORE OF HDO REFINERY, DAESAN
Lat. 37˚ 01' 46" N, Long. 126˚ 20' 50 " E
(approximately 39˚ X 2.25' miles from Kainso Light House)
1.1 Buoy Mooring
The buoy is moored with six chain pendents 4¾" and 4½" diameter studlink
chain, each having a nominal length of 343 meter. The chain pendents are
anchored to the sea bed by 4 X 20T + 2 X 28T STEVSHARK anchor. The
correct pre-tension angle for the pendent is 50˚ at M.S.L.
(water depth: 35.5 meter)
1.2 Buoy Dimensions
The dimensions of the buoy are as follows:
Outside Diameter : 12.00 m
Inside Diameter : 3.57 m
Skirt Diameter : 16.17 m
Buoy Body Height : 6.30 m
Freeboard : 2.50 m(approx.)
Weight(excluding chain wt.) : 295 tons
Cathodic Protection : Sacrifical Anodes with a 5 years life
* The buoy is fitted with a light FL.(3) Y 7 sec. and a foghorn Mo.(U) 30sec.
1.3 Maximum Acceptable Loads
Anchor Legs : 906/3 = 303 tons
Mooring Equipment : 290 tons
Buoy Components : 400 tons
Buoy Excursions(Horizontal) : 8.9 m at LLW (270 tons)
Buoy Excursions(Horizontal) : 7.2 m at HHW (248 tons)
Buoy Excursions(Vertical) : ± 2.3 m
1.4 Environmental Data
Current speeds at 5 m below surface in 31 m depth : 1.6 m/sec.
Water Depth : 31.0 m
Water density : 1.025
Lowest Low Water(LLW) : -0.92 m
Chart Datum(approx. LLW) : 0.0 m
Highest High Water(HHW) : 9.372 m
Spring Range : 7.37 m
Neap Range : 3.258 m
Mean Sea Level : 4.466 m
1.5 Buoy Operation Condition (Tanker moored)
(One year return period storm condition)
Wind Speed : instantaneous gust 20.0 m/sec
Maximum Wave Height : 4.16 m
Significant Wave Height : 2.25 m
Significant Wave Period : 6.92 sec.
1.6 Tanker Size
Minimum size : 30,000 DWT
Maximum size : 300,000 DWT fully loaded
2. Information required prior to Arrival UP
Vessels are required to advise HDO of following information via agents 7 days
prior to arrival.
1) ETA at Daesan pilot station
2 ) Arrival draft and displacement
3) Ship's particular
4) Crew list
5) Crude grade and pour point
6) B/L quantities at each grade
7) Ship's ullage report at load port
8) Stowage and discharge plan of cargo
3. Minimum Standards of Acceptance for Tankers Calling
HDO SPM Terminal UP
3.1 Size of Vessel
Vessel size not to be less than 30,000 DWT or more than 300,000 DWT.
3.2 Navigation Equipment
All navigation equipment to be operational, especially vessel's ladar and log in
good working condition.
3.3 Mooring Equipment
Vessel to be equipped with correct mooring equipment relevant to the standards
recommended by OCIMF for mooring at SPM. Vessel to be fitted two sets of bow
chain stoppers but vessel not more than 150,000 DWT to be accepted single bow
chain stopper. Forward rope drums are to be remained empty prior arrival in
order to wind up pick-up rope on it during berthing operation.
3.4 Hose Connecting Equipment
Vessel to be equipped with discharging manifold in accordance with OCIMF
specifications. Two flanges on port side to be prepared to accept 16" Quick
Release Cam-Lock Flange. Derricks and rigging to be not less than 15 tons SWT,
certified.
3.5 Inert Gas System
All vessels must be equipped with Inert Gas System confirming to the SOLAS
Regulations. This must be operable throught the vessels operations at SPM.
In the event of prolonged failure of the system, the vessel will be removed from
the SPM.
Tanks to be monitored by the vessels crew to ensure the correct atmosphere
in the tanks is maintained.
3.6 Crude Oil Washing System
Crude oil washing line shall be tested to 12kg/㎠ prior arrival and not leaking.
All valve hydrant on crude oil washing line to be capped and not leaking.
Fixed and portable oxygen analysers in proper working condition.
Oxygen content in the cargo tanks not to be exceed 8% at any time.
3.7 Immobilization
Immobilization of engines is not permitted at any time during during the vessel's
stay at the SPM. Vessel's main engines and steering gears to be maintained for
immediate use whenever required.
3.8 Crew
Vessel crew to be fully experienced in tanker operations. If any infringement of
safety regulations or the inability of ships crew to operate safely and efficiently is
noticed then the vessel removed from the berth.
4. Mooring Operation UP
4.01 Berthing Instructions
Hyundai Oil Refinery Co., Ltd. shall give the berthing instructions to the Master
through his agents.
4.02 Pilotage
Compulsory for vessel calling to SPM. Pilots board the vessel proceeding to the
SPM at Lat. 36°51' 40" N, 126° 08' 24" E, in the vicinity of 2 nautical miles
south of Shin-Do.
Vessel is normally anchored at Quarantine Anchorage which is in the vicinity of
1 mile west of Kainso Lighthouse in order to meet suitable tide for berthing.
If vessel arrives pilot station 2 hours before high-water or 5 hours before
low-water during daylight until 4 hours before sunset, direct berthing to
the SPM is available.
4.03 Mooring Master
One HDO Mooring Master and 7 mooring crew come on board the vessel when
passing 1 mile west of Kainso Lighthouse or during anchored.
During mooring operation A mooring master stations forward to inform the pilot.
A Mooring Master also acts as a Loading Master and theTerminal
Representative while staying in the port of Daesan.
Accomodation and meals should be provided for a mooring master and also
appropriate cabins are reequired for 7 mooring crews.
4.04 Mooring Crafts
Two or three mechanically propelled mooring launches will be in attendance.
One launch will be used to hold the floating hoses to clear of vessel's approach
path while the other(s) sends the messenger end of the mooring ropes to the
vessel.
4.05 Tugs
Two tugs will be in attendance during the berthing and unberthing operation.
Tugs are secured prior to heaving anchor or soon after anchor is aweigh.
Normal practiseis to position one tug on vessel's starboard bow and the other
at her stern, sometimes one on each bow. Tugs' lines are used.
After vessel has been securely moored to the SPM one tug will be dismissed.
The other tug will be secured aft until sailing time for the tailing operation.
4.06 Approach to the SPM
Vessel commences approaching from Quarantine anchorage to the SPM on
ebb tide during daylight until two hours before sunset.
1) Berthing at High-Water
Commence approaching : about half an hour before high-water
Complete mooring : one and half hours after high-water
2) Berthing at Low-Water
Commence approaching : about three and half hours before low-water
Complete mooring : one and half hours before low-water
While approaching to the SPM the radar and speed log should be used to
determine distance from the buoy and vessel's speed.
Use of ship's anchor is strictly prohibited within 500 meters radius from the SPM.
In any case the anchor must never be released or brought anywhere near the
entire length of the submarine pipeline.
4.07 Operation Limits
4.07.1 Berthing operation will be performed under the following condition:
1) Time limit : during daylight and on ebb tide
2) Wind speed : under 30 knots
3) Significant wave height : under 1.5 meters
4) Visibility(from pilot station) : over 1 nautical mile
(from Q-anchorage) : over 500 meters
5) Maximum draft : under 20.6 meters forward
6) Maximum deadweight : under 300,000 DWT
4.07.2 Unberthing operation will be performed under no special restriction:
1) Time limit : April - September 0600-2100 hours
October - March 0700-2000 hours
4.07.3 Imminent unberthing will be considered under the following circumstances:
1) When the enforcement of gale warning is expected within 3 hours.
2) When over 30 knots continuous wind is expected for the next coming 6 hours
or more.
4.08 Floating Mooring Rope Assembly
The buoy to tanker mooring comprises two 20" circ x 150 feet(45.7 meters)
Super line Brand Circular Braided 100% Nylon Ropes. At the buoy end,
the hawsers are joined to the mooring bridle of the Turntable with heavy duty
shackles.
Each hawser of the dual floating mooring hawser is fitted with U3 chafing
chains as per OCIMF standards.
The pick-up assembly consist of:
1) 80 mm diameter 8 strand polypropylene rope 100 meter(328 ft) long with a soft
eye at each end.
2) 48 mm diameter 3 strand polypropylene rope 100 meter(328 ft) long with a soft
eye at each end.
3) 38 mm diameter 3 strand polypropylene rope 50 meter(164 ft) long with a soft
eye at each end.
4) Pick-up support buoy.
4.09 HDO Buoy Monitoring System
The HDO Buoy Monitor is designed to measure the tension on the port and
starboard hawsers while a tanker is moored on the SPM, together with the
product pressure in the two pipes, and wind speed and wind direction.
The tension is measured using strain-gauged load monitoring pins that are
incorporated into the buoy mooring shackle.
The buoy equipment comprise two load pins, associated
intrinsically safe amplifiers, local digital displays, two pressure sensors, wind
speed and direction sensors, transmitter module, antenna and a battery power
supply charged by solar panels.
The signals are transmitted continuously to shore display station and portable
display unit.
4.10 Mooring procedures
Before the arrival of the tanker the ends of the hose strings are towed round to
keep them clear of the vessel during mooring. During the approach mooring boat
tows the starboard mooring rope around the buoy so that it is out of the way
when the port inner one is being worked on. The port inner rope is then run out
to its full length.(Sometimes the port inner rope is lashed on the floating hose
string and then the starboard outer rope is worked on first.)
A heaving line is lowered from vessel's central panama lead or if such a lead is
not available, then from the port forward lead to within one meter above the water.
When the end of the messenger is within range, vessel's bow is approximately
300 meters from the SPM i.e. 260 m to go to final securing position. Closing in
speed at this point must not exceed 0.5 knots.
As the vessel slowly closes in on the buoy the messenger, pick-up rope and
chafing chain are hove on board until the chafing chain is in position in the bow
chain stopper(support buoy just outboard of lead). The chain is secured in the
bow stopper and the inner mooring is then fast. While the inner mooring rope is
being tended to, the mooring boat brings the starboard outer mooring rope.
This rope is then hove on board and connected in the same way as the inner one.
5.Cargo Transfer Operation UP
5.1 Discharge Rate
The vessel are requested to maintain discharge rate of 9,000 ㎡/hour
(55,000 bbls/hour) or maximum back pressure of 9.5 kg/㎠ (135 psi) at ship's rail
during the bulk-discharge.
5.2 Crude Oil Washing
Vessel shall conduct 100 % crude oil washing of cargo tanks, if any extra
instruction is not given by a Mooring Master. COW must be performed
simultaneously with cargo discharge operation in order to minimize the stoppage
of discharge.
The notice must be given to the Mooring Master prior to commencement of COW
and upon completion of COW. Joint inspection is carried out by ship and terminal
representatives to ensure all requirements on the crude oil washing check list
have been complied with.
5.3 Line Displeacement
Should there be a need for line displacement with sea water after discharge high
pour point crude or waxy crude, the vessel must prepare this operation
accordingly.
Mooring Master will advise the vessel on the amount to be displaced and the
vessel will stop pumps when the advised quantity has been reached.
6.Unmooring Operation UP
Under normal circumstances two tugs will be in attendance during the unberthing
operation, one tug on vessel's starboard bow and the other at her stern.
Weight on the mooring hawsers may be taken off by using vessel's engines and
tug's assistance.
The polypropylene pick-up ropes, which remain connected to the end of the
chafing chains, are led to the winch, and the weight is taken off on the bow
stoppers.
The bow stoppers are released, and the mooring and pick-up ropes lowered to
the water.
When both moorings have been let go, the vessel is towed away until the vessel is
well clear of the SPM and the hose strings.
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