Company Details

Guido Perla & Associates, Inc. (GPA)
Guido Perla & Associates Inc
Guido Perla & Associates, Inc. (GPA)
Columbia Center
Seattle, WA 98104
United States
Contact: Inga Scholz
Contact Email: gpa@gpai.com
Booth #1546Map It
With offices in the US, Brazil, Chile, China and Germany, GPA developed into an independent, full-service naval architecture and marine engineering company that since 1979 has helped vessel owners and shipyards navigate through complex newbuild, retrofit and repair projects. Our extensive design portfolio includes over 200 offshore vessels, workboats, passenger vessels and fishing vessels constructed for commercial owners worldwide and governmental institutions. GPA employs a wide range of professionals to work on all phases of your project, from conceptual design and feasibility studies, to developing solutions to complex engineering problems requiring specialized skills and software. Our solid team consists of naval architects, marine engineers, mechanical engineers, electrical engineers and administrative support. Operators and shipyards benefit from cost-efficient design methods, resulting in custom-built designs that meet specific operational requirements.

Name:
GPA 254L AHTS / BOURBON LIBERTY 200 Series
Description:
54-Vessel Series of GPA 254L AHTS Design (Bourbon Liberty 200) Completed
Details:

GPA 254L AHTS / BOURBON LIBERTY 200 Series

Earlier in 2012, GPA completed a major milestone with the delivery of the final of 54 GPA 254L AHTS vessels, also known as the Bourbon Liberty 200 series, at Sinopacific Shipbuilding in China.

The benefits of these vessels, currently the largest series recently delivered for the offshore market, are comprehensive. The design outperforms similar-sized vessels in terms of space optimization as a result of locating the engine room above main deck, a concept pioneered by GPA several years ago and made possible by the implementation of diesel-electric propulsion.

GPA 254L AHTS / BOURBON LIBERTY 200 Series
Name:
GPA 462-10 OSRV / PETROBRAS 750-10 OSRV
Description:
Two GPA 462-10 OSRVs are under construction at Estaleiro Ilha S.A. (EISA) for Astromaritima Navegacao S/A.
Details:

GPA 462-10 OSRV / PETROBRAS 750-10 OSRV

The 64-meter vessels are outfitted with a diesel-electric propulsion system comprised of Caterpillar and Berg Propulsion equipment.  The system consists of two azimuthing drives, each rated for 1,700kW, and two bow thrusters, each rated for 448kW on the first vessel and approximately 600kW on the second vessel.  The propulsors and bow thrusters will run on three Caterpillar generator sets each rated for 1,700kW.  The electrical components of the propulsion system will be provided by WEG.

 

The use of a diesel-electric propulsion system creates valuable flexibilities, allowing for the maximization of cargo carrying capacities below deck, as the engine room is located above the main deck. This concept, pioneered by GPA several years ago, has been implemented on over 100 GPA-designed offshore vessels.  Besides fresh water tanks (315 m³) permanent fuel oil tanks (489 m³) and day oil tanks (33.3 m³), these OSRVs will be capable of transporting a maximum of 800 m³ of recovered oil. 

 

GPA’s designs are based on well-proven single-curvature hullforms and other construction methods simplifying the building process, such as flanged plate framing and transverse framing, which allowed GPA to offer a cost-effective solution to the highly competitive Brazilian market. 

 

The GPA 462-10 OSRV, providing accommodations for 16 crew members and 6 passengers, will bear the class notation ABS, +A1, Oil Recovery Vessel Class 1, +AMS, +DPS-1, FiFi 1, Enviro, Circle E. 

 

These vessels, the first OSRVs GPA has designed for the offshore market, will be under an 8 year contract for Petrobras.

 

GPA 462-10 OSRV / PETROBRAS 750-10 OSRV
Name:
GPA 640 PSV
Description:
The GPA 640 PSV was the first design in GPA's extensive offshore portfolio
Details:

GPA 640 PSV

The GPA 640 PSV, measuring 64 meters in length and providing accommodations for 22 crew members, is equipped with environmentally friendly diesel-electric propulsion, resulting in lower fuel consumption than direct drive systems, thus producing far less pollution.  

The main characteristics of the GPA 640 PSV include:
· Length Overall:  64.0 m
· Length Waterline: 61.6 m
· Beam: 16.5 m
· Depth: 5.8 m
· Design Draft: 4.9 m
· Maximum Draft: 5.2 m
· Deadweight @ Maximum Draft: 2,285 mt
· Gross Tonnage: 1,702

The vessel’s propulsion system consists of:
· Two 1,825 kW and one 910 kW main diesel generators
· One 170 kW emergency generator
· Two 1,566 kW azimuthing Z-Drives
· Two 746 kW bow tunnel thrusters

The vessel provides liquid mud tank capacities and delivery capabilities typically found only in much larger vessels.  Oval liquid mud tanks with a self-cleaning system provide maximum circulation and are more cost effective to clean than traditional square tanks.  The approximate vessel cargo capacities include:
· 818 m³ liquid mud
· 202 m³ bulk mud
· 206 m³ cargo fresh water
· 66 m³ ship fresh water
· 487 m³ rig water
· 766 m³ fuel oil cargo

The deck equipment may include an optional 1.8 mt @ 10 m electro-hydraulic telescopic boom deck cargo crane. The DPS-2 and FFV-1 certified GPA 640 PSV is designed to provide exceptional maneuverability and maintain a speed of 15 knots at loadline, which is up to 30% faster than most existing vessels of equal size.  

Ten of the GPA 640 PSVs were delivered by Bender Shipbuilding and Repair in Mobile, Alabama to Rigdon Marine in 2005, and are currently serving the Gulf of Mexico shelf and deepwater production markets. Two GPA 640 PSVs were ordered in September 2006 by Trico Marine. Both vessels were delivered in 2008.

GPA 640 PSV
Name:
GPA 654 PSV
Description:
The GPA 654 PSV, measuring 54 meters in length and providing accommodations for 12 crew members, is the smallest of the GPA Platform Support Vessel series and is equipped with environmentally friendly diesel-electric propulsion, resulting in lower fuel consumption than direct drive systems, thus producing far less pollution.
Details:

GPA 654 PSV

The GPA 654 PSV, measuring 54 meters in length and providing accommodations for 12 crew members, is the smallest of the GPA Platform Support Vessel series and is equipped with environmentally friendly diesel-electric propulsion, resulting in lower fuel consumption than direct drive systems, thus producing far less pollution.  

The main characteristics of the GPA 654 PSV include:
· Length Overall:  57.9 m
· Length Waterline: 54.9 m
· Beam: 14.0 m
· Depth: 5.5 m
· Design Draft: 4.3 m
· Maximum Draft: 4.91 m
· Deadweight @ Maximum Draft: 1,706 mt
· Gross Tonnage: <1,600

The vessel’s propulsion system consists of:
· Two 1,235 kW and one 435 kW main diesel generators
· One 113 kW emergency generator
· Two 843 kW azimuthing L-Drives
· One 843 kW fixed L-Drive
· Two 560 kW bow tunnel thrusters

The vessel provides liquid mud tank capacities and delivery capabilities typically found only in much larger vessels.  Oval liquid mud tanks with a self-cleaning system provide maximum circulation and are more cost effective to clean than traditional square tanks.  The approximate vessel cargo capacity include:
· 636 m³ liquid mud
· 156 m³ bulk mud
· 334 m³ cargo fresh water
· 34 m³ ship fresh water
· 436 m³ rig water
· 477 m³ fuel oil cargo

The deck equipment may include an optional 1.8 mt @ 10 m electro-hydraulic telescopic boom deck cargo crane. The DPS-2 and FFV-1 certified GPA 654 PSV is designed to provide exceptional maneuverability and maintain a speed of 13 knots at loadline, which is up to 30% faster than most existing vessels of equal size.  

The ten-vessel series was completed in 2008 and the vessels, first owned by Rigdon Marine (now Gulfmark Offshore) operate in the Gulf of Mexico.

GPA 654 PSV
Name:
PANAMA CANAL PUSHER TUGS
Description:
GPA designed two pusher tugs for the Panama Canal Authority, destined to support the enlargement projects in the Canal, along with five barges, also designed by GPA and already delivered.
Details:

PANAMA CANAL PUSHER TUGS MV MATACHIN & MV CAZALLA

GPA provided the Design and Class Package, which received the highest evaluation marks by Panama Canal Authority for specification compliance and cost efficiency.  Additionally, GPA provided the Detailed Construction Engineering for SIMA, detailing steel lofting, piping and electrical wireways. 

The 29.70-meter tugs will support dredging operations in the Panama Canal along with five GPA-designed split hopper barges that were also constructed at SIMA and delivered recently.

The pusher tugs are equipped with two GE medium speed 12V228 main engines rated at 2,630 HP each and two ship's service generators at 135kW each.  Two stainless steel propellers in Kort nozzles produce 55MT bollard pull (ahead) while bolllard pull astern will be 36MT.  Maximum speed at design draft is 12 knots.  Other equipment includes an off-ship firefighting system sized for 2,000 gpm @ 150psi and a 2mt @ 3m radius crane.

The deck on the tugs is kept clear above the engines for ease of removing the engines if necessary, an unusual feature for a vessel of this size.  The sightlines fore and aft are excellent as the operator places a high premium on visibility from the wheelhouse. 

The vessels, which have day accommodations for 6 crew members, bear the class notations GL, +100A5, Tug, +MC, AUT.

While these tugboats and barges are the first projects GPA has undertaken with SIMA and the Panama Canal Authority, GPA has designed various complex tug boats in the past for different owners, bringing extensive experience and commitment to this project.  GPA teamed with their clients and worked closely with equipment suppliers, such as Motor Services Hugo Stamp, to meet both operator and shipyard needs.  The end result are reliable vessels well suited for their operational profiles at an affordable cost. 

PANAMA CANAL PUSHER TUGS
Name:
GPA 670 PSV / GPA 670 PSV MK II Special Products
Description:
GPA designed the GPA 670 PSV, as well as various other versions, such as the GPA 670MKII ROV or the GPA 670 Special Products PSV. The vessels, totaling 22, were constructed at Sinopacific Shipbuilding in China for Bourbon Offshore.
Details:

GPA 670 PSV / GPA 670 PSV MK II Special Products

The GPA 670 MKII Special Products, measuring 73 meters in length and providing accommodations for 23 crew members, is equipped with environmentally friendly diesel-electric propulsion, resulting in lower fuel consumption than direct drive systems, thus producing far less pollution.

The main characteristics of the GPA 670 MK II Special Products include:
· Length Overall:  73.0 m
· Length Waterline: 70.0 m
· Beam: 16.5 m
· Depth: 6.8 m
· Design Draft: 5.3 m
· Maximum Draft: 5.64 m
· Deadweight @ Design Draft:  2,802 mt
· Deadweight @ Maximum Draft: 3,167 mt
· Gross Tonnage: 2,300

The vessel’s propulsion system consists of:
· Three 1,825 kW main diesel generators
· One 170 kW emergency generator for GPA 670 PSV
· One 186 kW emergency generator for GPA 670 MKII Special Products
· Two 2,000 kW azimuthing Z-Drives
· Two 746 kW bow tunnel thrusters.  

The vessel provides liquid mud tank capacities and delivery capabilities typically found only in much larger vessels.  Oval liquid mud tanks with a self-cleaning system provide maximum circulation and are more cost effective to clean than traditional square tanks.

The approximate vessel cargo capacities include:  
· 1,083 m³ liquid mud
· 255 m³ bulk mud
· 906 m³ cargo fresh water
· 405 m³ drill water
· 102 m³ ship fresh water
· 927 m³ fuel oil permanent tanks
· 167 m³ special products (optional for GPA 670 PSV MKII Special Products)

The deck equipment includes an electro-hydraulic telescopic boom 2 mt @ 16 m deck cargo crane.  The DPS-2 and FFV-1 certified vessel is designed to provide exceptional maneuverability and maintain a speed of 15 knots at loadline, which is up to 30% faster than most existing vessels of equal size

The GPA 670 PSV MKII Special Products is very similar to the original GPA 670 PSV design but it provides the possibility to carry up to 167 m³ special products, such as methanol, in specially designed tanks located in the aft end of the vessel.

A total of 22 vessels of various GPA 670 PSV designs were constructed at Zheijang Shipyard in China for Bourbon Offshore.

GPA 670 PSV / GPA 670 PSV MK II Special Products
Name:
GPA 675 PSV / PETROBRAS PSV 3000
Description:
Designed specifically to meet Petrobras requirements, two GPA 675 PSV are currently under construction at EISA for Astromaritima Navegacao S/A.
Details:

GPA 675 PSV (PETROBRAS 3000 PSV)

The vessels are outfitted with a diesel-electric propulsion system comprised of equipment by Berg Propulsion and Caterpillar. The system consists of two azimuthing drives, each rated for 2,500kW and two bow thrusters, each rated for 750kW. The propulsors, bow thrusters and other electrical consumers will run on four Caterpillar generators each rated for 1,825kW and an emergency generator rated for 190kW. The electrical components of the propulsion system will be provided by WEG. The GPA 675 PSV has an overall length of 76.80 meters, a beam of 19.00 meters, and a maximum draft of 6.00 meters.

The use of a diesel-electric propulsion system creates valuable flexibilities, allowing for the maximization of cargo carrying capacities below deck, as the engine room is located above the main deck, a concept pioneered by GPA several years ago. 

The GPA 675 PSV, providing accommodations for 22 crew members and passengers, will bear the class notation ABS, +A1, Offshore Support Vessel, +AMS, +DPS-2, Circle E and +ES. These vessels are under an 8-year contract for Petrobras.

To offer a cost-effective solution to the rapidle growing and highly competitive Brazilian market, GPA's designs are based on well-proven, single-curvature hullforms and other construction methods simplifying the building process, such as flanged plate framing and transverse framing.  GPA has had great success with these methods that have become the standard not just for offshore designs bust for most vessel types GPA designs.

GPA 675 PSV / PETROBRAS PSV 3000
Name:
GPA 688SC PSV / PETROBRAS PSV 4500
Description:
Four GPA 688SC PSVs for Brazilian Operator Starnav are under construction and will operate under contract for Petrobras.
Details:

GPA 688SC PSV / PETROBRAS PSV 4500

To fulfil Petrobras’ requirements for the 4500 PSV, GPA developed a modern look vessel, the GPA 688SC PSV, with a special deckhouse arrangement.  This design has the capability to be transformed into the PSV 3000 (GPA 675 PSV), another vessel specified by Petrobras, by changing the midbody section. This characteristic is extremely valuable for the shipyard as it offers a high degree of flexibility and gives the opportunity to build in series.

The GPA 688SC PSV, measuring 90.00 meters in overall length, has a deadweightcapacity of 4500 MT, thus the designation of the vessel.  The vessel’s mechanical and cargo systems meet PETROBRAS requirements for four segregated liquid cargo systems with independent exclusive tanks, piping systems and cargo pumps.  All of them are controlled by a fully automatic cargo management system and are capable of carrying synthetic oil-based mud (1,160 m³, Segregation 1), hydrocarbonated oil-based mud (290 m³, Segregation 2), water-based mud (590 m³, Segregation 3), and brine (1,494 m³, Segregation 4).  In addition, the vessels are equipped with tanks capable of carrying fresh water (172m3), dry bulk (340 m3), ship’s fuel oil (261m3), ship’s fuel oil day (38m3), fuel oil overflow (55m3), lube oil (4.5m3), dirty oil (13.6 m3), oily water (13.6 m3), sewage (13.4 m3), as well as ship’s ballast (2,060m3).  

The vessels will be optimally equipped for all conditions with a diesel-electric propulsion system, consisting of MTU engines, propulsors by Schottel and the Integrated Engine Control Room (ECR) by EPD.

Running on four MTU generators rated for 1,845 kW and one MTU emergency generator rated for 176 kW, GPA sees several benefits for the operator as these generators provide a powerful and compact, robust and quiet solution. They also offer the highest cost-effectiveness and profitability due to low consumption values, long maintenance intervals, and a low-maintenance engine design. 

This propulsion configuration is optimized by combining it with two azimuthing drives combi drives rated for 2,500 kW and two tunnel thrusters rated for 900 kW delivered by SCHOTTEL.

The Engine Control Room (ECR) provided by EPD is a completely pre-tested, pre-manufactured container and designed as an integral art of the ship’s structure.  It allows for the equipment to be installed and tested in a controlled environment.  During construction, the ECR is simply lowered onto the vessel, secured and connected to power and control cables externally. This proven approach, first brought to market in 2009 on the GPA-designed Bourbon Liberties offshore vessel, greatly reduces the possibility of equipment damage while in shipyard.

The GPA 688 PSVs, providing accommodations for 30 crew members, will bear the class notation ABS, +DPS-2, +A1, Offshore Support Vessel, Circle E, +AMS and +ACCU.

GPA 688SC PSV / PETROBRAS PSV 4500
Name:
GPA 696 IMR / BOURBON EVOLUTION 800 SERIES
Description:
GPA designed the GPA 696 IMR, also known as the Bourbon Evolution 800 series, for Bourbon Offshore. The ten-vessel series is currently under construction at Sinopacific Shipbuilding in China and the first vessels have already been delivered.
Details:

GPA 696 IMR / BOURBON EVOLUTION 800 SERIES

Ten of the 100-meter GPA 696 IMR multi-purpose vessels are currently under construction at Zheijang Shipyard in China for Bourbon Offshore.

The highly maneuverable DP-3 and FiFi-1 certified GPA 696 IMR vessels are equipped with three 1,686 kW azimuthing drives, two 843 kW tunnel bow thrusters, one 843 kW drop-down azimuthing bow thruster delivered by Schottel and six 1,235 kW Cummins generators, as well as one 1,235 kW auxiliary generator and one 450 kW emergency generator. The configuration of the environmentally friendly diesel-electric propulsion system, including two engine and two electrical rooms, creates full redundancy in accordance with DP-3 requirements. The diesel-electric propulsion system also results in reduced maintenance cost and improved station-keeping at offshore installations, and significantly increases crewmember safety. Because of its design and standardization, the GPA 696 IMR series can compete with more expensive, similar-sized vessels, reducing operational cost to the customer by up to 20%.

The deck equipment of the 100-meter vessels includes one 150 MT @ 10 m radius main crane, which can lower packages to a depth of 3,000 meters and one 40 MT @ 9 m radius deck crane. Both cranes, with built-in swell compensation systems, cover the entire 1,200 m² deck surface to ensure handling and storage of packages over the entire area. The SOLAS-certified IMR vessels also have significant below-deck cargo capacities, capable of carrying 380 m³ of methanol, 2,541 m³ ship‘s ballast, 1,080m³ fuel oil and 749 m³ fresh water. The vessels are also equipped with a helideck designed for a Super Puma Helicopter EC225.

Versatility is another main benefit as the vessels have the capability to adapt to different operational needs and can serve as a stimulation vessel, rescue vessel, hotel vessel or provide light intervention on wells while offering modern conditions aboard with meeting rooms, offices, lounges and comfortable cabins. The vessel design allows for the following configurations:

- ROV Vessel: 2 ROVs can be used at the same time.
- Deck Cargo: Maximum deck Cargo is 2080 MT, with an equivalent 18512 m-MT deadweight vertical moment.
- Hotel Vessel: Accommodations for 105 people on board under comfortable working conditions.
- Mini-FPSO Vessel: Increased freight loading capacity with a storage capacity of 24,000 barrels of crude oil.
- Oil Well Intervention Vessels: Support of interventions on oil wells for measurement and cleaning.

One of the remarkable features of these vessels is the ability to operate both cranes and both ROVs simultaneously over the complete operating envelope of the vessel without any restrictions. These vessels are certified to satisfy both the current IMO deterministic and probabilistic damage stability requirements..

GPA 696 IMR / BOURBON EVOLUTION 800 SERIES
Name:
AGOR-27 / AGOR-28 Oceanographic Research Vessels
Description:
In August 2012, the keel-laying ceremony was held at Dakota Creek Industries for two oceanographic research vessels designed by GPA.
Details:

AGOR-27 / AGOR-28 Oceanographic Research Vessels

GPA was awarded a contract to deliver the Regulatory Design and Detail/Production Design for the T-AGOR-27 Ocean Class Research Vessel. The basic design was developed by GPA during a NAVSEA sponsored design competition while under contract with Dakota Creek Industries (DCI) and partnered with leading marine industry equipment vendors. The Navy-owned vessel will be operated by the Woods Hole Oceanographic Institution of Massachusetts.  A second vessel may be awarded at a later date.

To win this award, GPA was hired by Dakota Creek Industries to provide a basic design during the Phase I NAVSEA design competition.  This phase required development of an original design of the vessel including hull form, structure, arrangements and systems, and integration of equipment from vendors throughout the marine industry to meet a demanding government specification and limited budget. GPA’s unique hull form was optimized for sonar operations and fuel efficiency and was model tested during this phase to verify conformation with Navy requirements.  This year long process involved multiple design reviews to U.S. Navy and other government organizations and some ABS regulatory review.  GPA also worked closely with DCI to ensure that production methods were taken into account early in the design process.

The T-AGOR-27, an advanced oceanographic research vessel, will have the capability of carrying sufficient supplies and support systems to stay at sea for up to 40 days, covering up to 10,000 nautical miles and withstanding high sea and wind conditions.  These capabilities, combined with the ability to operate 75% of the time during the Pacific Northwest and North Atlantic’s winter months and powerful ocean exploration equipment and instrumentation, will provide for superior operations.  The highly developed equipment includes:

  •  A multibeam seafloor mapping system for deep and shallow water
  • A sub-bottom profiler to map sediments below the seafloor
  •  An acoustic doppler current profiler to map currents throughout the water column
  • Precise navigation tools for tracking instruments in the water beneath the ship
  • An array of networked sensors to measure atmospheric and ocean properties.

The total variable science load, in part stored in up to 2,000 ft2 of internal labs and facilities, is 100-200 long tons.  These facilities will include a wide variety of lab types with reconfigurable benches, cabinetry and special electrical requirements, storage for hazardous materials, repair facilities for equipment and systems providing uncontaminated seawater. Besides the indoor facilities, the scientists require a 2,000 ft2 working area in the stern up top that can handle a range of temporary equipment, 80 ft2 of clear deck area alongside one rail, as well as a range of recovery equipment, including winches, wires, cranes, frames, booms and others. Other deck areas will be used to handle incubators, vans, workboats and other temporary equipment.

Acoustic characteristics of the vessel are another important factor in this project due to sensitive instrumentation and experiments, as well as modern crew comfort requirements. The vessel was designed to meet all Navy noise and vibration requirements through a careful analysis of equipment selection and location, as well as noise insulation treatments.

Emphasis was also placed on the vessel’s ability to operate in rough weather for extended periods of time in a safe and efficient manner.  This required GPA to integrate many different systems for remote and automated controls.  Major systems include:

  • Integrated Diesel-Electric Plant Design with ABS ACCU notation
  • Dynamic Positioning capabilities and precise vessel maneuvering requirements
  • State of the art deck handling systems with high levels of remote operation capability. 

Coupled with leading experts in the field for these various systems mentioned above, GPA was able to ensure that operational requirements were met or exceeded using minimum personnel and high factors of safety for the crew.  GPA brings a high level of knowledge and experience to the implementation of all of these systems due to the company’s accomplishments across multiple sectors of the marine industry, combining the complex needs of the oceanographic research industry with some of the more practical solutions used in such applications as offshore oil, fishing and towing operations. Approximately 200 GPA-designed vessels, equipped with such systems, have been delivered or are currently under construction throughout the world.


 

AGOR-27 / AGOR-28 Oceanographic Research Vessels
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