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Marine Solutions to the Oil, Gas & Power Industries
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Waller Marine, Inc.       14410 W. Sylvanfield Dr.        Houston, TX 77014        PH: 281.444.9650        FX: 281.444.8055
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Waller Marine Brochure
WMI Power Barge Brochure
Waller Marine has produced special purpose vessel designs for
various industries, including floating offshore terminal for product
and crude oil loading, floating facilities for Ocean Thermal Energy
Conversion (OTEC), floating facilities supporting bauxite plants
and compressed natural gas ships for ocean transportation.

Waller Marine contracted to design and construct a dynamically
Multi-Purpose Cable Lay Barge. This EPC contract
requires Waller Marine to provide the turnkey supply of the barge
and all specialized cable storage and lay equipment delivered to
Nigeria.  The vessel will be designed to lay electric cable, fiber
optic cable and umbilicals in the rivers and coastal estuaries of
Nigeria and in offshore waters up to 300 meters water depth.

The ocean going barge is designed specifically for cable lay
service. With dimensions of 275 ft x 75 ft x 16 ft, the vessel will
be classed by Lloyd's Register, meet all IMO requirements and be
flagged in the Republic of Panama.
Specialized Vessels
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Cable Lay Barge
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PetroWorld, along with three international partners, on July 16 announced that
they are developing the world's first floating large-scale, fuel-grade methanol
plant designed to extract natural gas from reserves in remote areas and
convert it on board into liquid methanol at a rate of 12,000-15,000 tons of
output per day. A primary market for the product is certain gas turbine power
plants in the U.S., where methanol would be an advantageous alternative fuel.
The $700 million plant will be deployed off Africa's west coast about three
years from the date that project details and financing are finalized.

The partnership hopes to develop and deploy additional plants in appropriate
maritime locations around the world that have "stranded gas". *Unlike oil,
liquid methanol can be produced and sold at a less volatile price, which is good
news for U.S. power companies currently at the mercy of fluctuating oil and
gas prices.
  • Single screw with omni thrust maneuvering
  • Length O.A.:  106 ft, 3 in
  • Length B.P.: 90 ft, 9 in
  • Breadth:  26 ft
  • Depth:  18 ft
Image of Waller Marine design for Cable Lay Barge
A deck mounted 100-tone crane and a 40-ton dynamic "A"
framefitted with a cable lay and burying sled for up to eight feet
Accommodations are provided for 37 crew and company
personnel in single and double cabins complete with recreation,
exercise rooms, laboratories, hospital and modern galley and
mess. The facilities are fitted with a helicopter deck and capability
of resupply from water borne supply vessels.

The barge will be constructed to Lloyd's Class DP AA dynamic
positioning capability, using six diesel-hydraulic thruster units
manufactured by Thrustmaster of Texas, with controls installed
by Kongsberg DP Systems. Positioning and station keeping is
augmented by a four part mooring system.
Image of Waller Marine's design for Cable Lay Barge
Cable Lay Barge
World's First Floating Methanol Plant Could Play Role
in Alleviating U.S. Energy Shortage
Image of Waller Marine's design for 12,000 TPD Methanol Plantship
The world's proven natural gas reserves are in excess of 5,000 trillion cubic feet, which is enough to satisfy one-third of total world oil
demand for 35 years. However, half of these gas reserves are "stranded", meaning they are located off the shores of countries where is
uneconomical to build liquid natural gas(LNG) facilities on shore, not to mention the cost of transportation in specially refrigerated tankers
transported in ordinary tankers.  The principal challenge was developing a cost efficient methanol plant that would fit on a vessel, which
was accomplished by Starchem Technologies, Foster Wheeler Power Systems and
Waller Marine.
About the Partners
The world's first floating methanol plant is being jointly developed by PetroWorld Limited (a 50-50 joint venture between PetroSA, the
Petroleum Oil and Gas Corporation of South Africa Ltd., and Transworld Exploration Ltd., part of the Transworld Group of Companies),
Perryville, New Jersey-based Foster Wheeler Power Systems Inc., Houston-based Starchem Technologies International Ltd. and
Waller Marine, Inc.
Offshore Gas to Liquids Facility - Methanol
The integration of a new methanol process technology with
a marine vessel permits the conversion of large quantities of
remote or stranded gas to a liquid for transport to markets
for use as fuel for power generation or feedstock for the
petrochemical industry in the conversion of methanol to
olefins (MTO).
The methanol plantship comprises a double hull structure of
1,000 ft in length by 200 ft beam, with storage capacity of
250,000 tons of methanol product. The process plant is
supported on the process deck, similarly to a traditional
FPSO. Moored by an extended turret, gas is supplied
through a riser and swivel at rates up to 400 mmscf/d.

The barge is designed with high motion suppression
features, constant draft and has the ability to change it's
vertical center of gravity by moving ballast in order to
modify it's natural frequency for motion reduction.
Designed for worldwide operations, the facility can accept
wellhead and dry gas, producing either fuel or AA grade
quantities to load out 200,000 dwt tankers for transport to
either the power generation or MTO chemical markets.
Image of offshore floating methanol plant, 10,000 MT per day capacity
Offshore floating Methanol Plant
10,000 M.T. Per Day Capacity
Images of offshore flating methanol plant, 10,000 MT per day capacity
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