Brief Technical Information:
ER located in fore and middle of the vessel. Switchboard Room located at the aft of the tween deck, and ECR arranged at the forward of the main deck, 4 generator sets are in symmetrical distribution, the portside engine with shaft driven firefighting pump, single casing located in PS fore of the ER, 2 air trunks separately located PS and SB, and jointed together at tween deck and down to the tank top of ER. ER hatch located near the center of the ER.
Bow and Stern Thruster Room Arrangement
Bow Thruster Room (BTR) located forward, can be entered through ER by a hydraulic watertight sliding door. Electrical motors for two thrusters are arranged in the middle of BTR circled by control boxes, servo pumps, ER water mist spray pump unit and emergency fire pump etc. The hydraulic header tank and storage tank are arranged on tween deck.
Stern Thruster Room (STR) is located on aft of the vessel whose entry can be made through hydraulic watertight sliding door from cargo pump room. 2 RRM azimuth thrusters, 2 propulsion motors and their accessories (servo plants, transformers, converters, control cabinets) are located at STR.
Propulsion System
The main propulsion system consists of 4 generator sets (2X1628 bkW Caterpillar 3512C and 2X999 bkW Caterpillar C32) and 2 X1520 kW Rolls-Royce AZP85CP Azipull Thrusters. Rolls-Royce AZP85CP Azipull thruster ensures a homogeneous inflow to the blades influenced only by the hull boundary layer. A clean inflow to the propeller is a crucial factor in obtaining low propeller induced noise/ vibration as well as high efficiency.
Additional Information
1. Oil Recovery Operation:
There are 8 ORO tanks, symmetric located on PS and SB, also as liquid mud tank, brine tank and partial as LFL* tank. There is an ORO loading station and discharge station on aft starboard.
ORO area is explosive area. At ORO mode, irrespective electric equipment in cargo pump room and on main deck shall be switched off. And the tank vent valves shall be in ORO mode.
2. Oil loading:
Connecting piping between oil loading connection and the skimmer unit (Owner’s supply). The skimmer unit can fill oil through the loading connection to the ORO tanks.
Oil discharge: Connecting piping or hose from oil discharge connection. Two eccentric screw pump (ex-proof type) 75m3/h@24bar can discharge oil from each tank.
Vessel Integrated Automation System (IAS)
Vessel management system is supply by Ulstein UPC. The system is based on the Field bus technology (CAN), I/O cabinets are arranged in each area onboard, connecting and processing data, then upload to the net via the Field bus. These data is displayed and controlled on workstations in the ECR and wheelhouse. IAS integrates AMS, PMS, Bulk Discharge Control System, Sounding and Electric Valve Remote Control System, Cargo Pump Control System and so on. The system display the parameters, controllable devices and related alarm information by a lot of graphical control interface (MIMICs), this make the operation more humane, for example, the operator can be familiar with the work status of all components of the power station on one page, the parameter information is included in the frequency, voltage, current, etc; Operator also can change working mode and operate generators simultaneously in safety order upon testing, including generator circuit breaker and bus tie switch by clicking on the new generation Kongsberg electronic display, while this type of displays it’s safer to prevent human risks errors factors, more intuitive and simple.
Dynamic Positioning System:
The DP system of the ship is supply by Konsberg Maritime Company; It meets the DP AUTR of DNV-GL. DP ERN index is 99.99.99.
The DP system is equipped with 3-sets of gyro compasses, 3-sets MRUs, two-sets of DGPS and 1-set of CyScan Laser System.
Configuration of dual network/ dual processors and dual operation stations meet the relevant Class requirements of all specifications.
Vessel Milestone Design Principles/ Built Specifications:
– Vessel is built with higher transit speed in calm water due to low angles of entry and increased waterline length.
– Negligible occurrences of green water on bridge deck.
– Working deck and deck equipment efficiently protected due to hull extended to full beam in accommodation area.
Comfort:
– When vessel normally sailing and in DP mode operation – noise, vibration and indoor climate meets fully the requirement of DNV-GL Class notation COMF-V(3) and COMF-C(3).
Environmental protection compliance:
– Vessel complies with DNV-GL Class notation: CLEAN DESIGN, Recyclable, COMF-V(3), COMF-C(3), BWM-T.
– Vessel complies with DNV-GL Class notation OILREC. She can treat, storage and transport recovery oil with flash point below 60 *C in emergency conditions.
Safety:
– Vessel Satisfies SOLAS 2009. Double bottom design though-out the cargo tank and engine room, stability satisfaction as per Det Norske Veritas rules & regulations.
– Two bow thrusters and two stern azimuth thrusters with high reliability impact of ship maneuvering capabilities.
– Three-dimensional in whole product design stage, rational equipment arrangements with well service space and passage, unhindered exit routeway.
Whilst this PX121 is a Platform Supply Vessel built for worldwide operations, as per DNV-GL Class, with main capabilities as follows:
– Configured with FFS fire pump and monitors that can carry out external firefighting operations.
– Carrying below deck in integrated tanks diesel oil, potable water, liquid mud, drill water, brine base oil and LFL*. Carrying dry bulk in separate vertical tanks with conical bottom, suitable for barites, bentonite, cement.
– Carrying a combination of deck cargo consisting of tubulars, drill pipe, general cargo, and others.
– Carry out oil recovering operations.
Class Notation:
DNV+1A1 Offshore Service Vessel, SF, E0, DYNPOS-AUTR, CLEAN DESIGN, Recyclable, NAUT-OSV(A), COMF-V(3), COMF-C(3), LFL*, Fire Fighter I, OILREC, BIS, HL(ρ), DK(+), BWM-T, SPS.
Deck load:
840 m2, from fr. 35 to bow – the deck load ability is 5t/m2;
From fr. 35 to stern is: 10t/m2;
Main Dimensions:
Loa : 83.4m
Lpp : 76.5m
Breadth : 18.0m
Depth from Main deck: 8.0m
Deadweight : 4000 t
Onboard personnel : 30
Sea trial speed : 14.5 knots
Service speed : 10~13 knots
– MAX. DRAUGHT ( SLW)…. : 6,7 m
– DESIGN DRAUGHT ………. : 6,0 m
Load capability
Dry bulk : 30255 m3
Fuel oil : 475m³
Potable water : 1055m³
Mud : 1295 m³
Brine : 1295 m³
Base oil : 265 m³
LFL* : 155 m³
Recovered oil : 660 m³
Max. density of dry bulk: 2.4 t/ m³
Deck Machinery:
One anchor windlass, two capstans, and two tugger winches on board.
Anchor windlass:
Double hydraulic windlass / mooring winch, consist of:
Cable lifters: Two declutch-able cable lifters with band brakes.
Brake holding load: 77.1 T
Duty of cable lifters: Normal pull chain lifter: 10T
Maximum pull chain lifter: 15T
Drums:
Two declutch-able mooring drums with band brakes.
Drum capacity: 180mXDia. 44mm P.P. Rope @7 Layers
Two fixed warping ends.
Driving unit to be hydraulic motor.
Chain stoppers: Chain stoppers of Roller type with lashing screw.
Capstans
Hydraulic capstans each consisting of:
One fixed warping head dia. 450mm, height 864mm.
Rated pull: 10TX0~30m/min
Tugger winch
Hydraulic tugger winch.
Pull capacities: 10TX0~35m/min (1stLayer)
Drum capacities: 110XDia.20mm SWR@5 Layers
FRC:
PX121 is equipped with fast rescue craft and integrated firefighting appliances, well security.
FRC & Davit:
The Alusafe 700 MKII is a rigid fast rescue craft with a hull of marine aluminum specially designed for service in the offshore field and other demanding environments.
The boat davit has following functions:
– Normal operation
– Dead-Ship operation
– Hook stop
– Constant Tension system
– Shock absorber
Fire Fight System with Water:
Protection system of water mist type designed in accordance with SOLAS Chapter II-2, IMO MSC/Circ. 913 and rule of DNV-GL.
Local protection:
Main generator sets
Hot water boiler
Fuel oil separator
Incinerator
Fire Fight System with Gas:
Unitor 1230 clean agent system is a central manually pneumatic operated system with one cylinder for single space protection using Novec 1230 Fluid extinguishing agent.
Protected areas:
Engine room including casing.
Switchboard room
Galley duct
Incinerator room
Fire Fight System with Foam
Foam system for LFL* cargo tank system.
Protected areas: LFL* cargo deck area.
Total 30 person on board: 26 sleeping cabins (1-man room: x 22 & 2-man room: x 4,). All cabins/ rooms satisfy fully the ILO rules with separate wet room. Vessel is fitted w/ mess room, galley, hospital and gymnasium, all supplied with TVs, computers and recreation establishments for crew to rest efficiently. Comfort living and work on board vessel. Noise/ vibration and indoor climate full meet the DNV notation COMF-V3C3.
External Fire Fighting:
PX121 is designed with active protection, giving it the capacity to withstand higher heat radiation loads from external fires, and it includes a sufficient set of firefighting equipment: –
– One Fi-Fi pump capacity with 3638 m3/h at 123 mlc
– One hydraulic clutch for main engine and Fi-Fi pump
– Two Fi-Fi monitors with Rotation: 360 degrees
– Elevation: -20 to +80 degrees
– Capacity: 1200m3/h
– Throw length/ height: >120m / 50m
Water spray nozzles:
Complete water spray system for vessel self-protection. Water supplied from Fi-Fi pump by FFS adjustable pressure reducer.
Integrated control system with fixed touch screen control panel and portable panel for two monitors.
Accommodation Typical Arrangements:
While wardrobe, hospital, laundry, gymnasium, ECR, change room, deck workshop and incinerator room are arranged on main deck.
Dry provision, refrigeration room, galley, mess room, dayroom – arranged on “A” Deck.
2-man room, 1-man room, meeting room and various additional compartments – arranged on “B” Deck, “C” Deck and “D” Deck.
Additional Notes:
Liquid mud, brine, base oil, low flash-point liquid and recover oil tanks are partly shared, drill water and ballast water are totally shared.
Vessel has good sailing and operating ability to handle bad weather state and extreme complex/ harsh environment sea conditions.
Keen Owners
If of interest to inspect – Appointed Parties & Direct Buyers must sign prudent NDNCA as per reputable Owner’s requirements.
All DNV-GL Class Certifications – Up to date.
Disclaimer:
The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A Buyer should instruct his agents, or his surveyors, to verify all details as per Buyer desires (project plans/scopes of work) in due course.
This vessel is offered subject to availability, price change, or withdrawal without notice.
4 Resales – PSV units directly from its reputable Owners.
This 2023 built, Norwegian Ulstein PX121 design PSV has an electric propulsion with 4 Caterpillar generator sets (1628 bkWX2, 994 bkWX2), 2 RRM azimuth thrusters (each rated 1520 kW), and 2 RRM bow thrusters (each rated 880 kW).
