Marine Services Div.
Geosource Inc. Delivers
Self-Propelled Barge
Construction on a self-propelled
work barge for Gulf Energy &
Minerals Company U.S. has been
completed by the Marine Services
Division of Geosource Inc., Har-
vey, La.
According to Marine Services
Division vice president and
general manager D.M. Gordon,
Geosource performed a complete
turnkey operation, including pro-
viding and installing all equip-
ment for the new 90-foot by 28-
foot by 5-foot 6-inch barge.
The Marine Services Division
(formerly known as the Shipyard
Division) of Geosource Inc. pro-
vides repair, construction and
modification services for barges,
dredges, inland drilling barges,
tenders and other vessels, as well
as drilling rig equipment repair.
The division has two locations on
the Harvey Canal near New Or-
leans, La., and one on the Intra-
coastal Canal at Morgan City, La.
For a copy of the Marine
Services Division complete capa-
bility portfolio, write to Dan M.
Gordon, Marine Services Division,
Geosource Inc., P.O. Box 24, Har-
vey, La. 70059.
Large Modern Fleet
BARGES
FOR RENT
Deck Barges • Inland/AH Ocean
Material Barges • OH Barges
Spud Barges • Crane Barges
THIRD LNG FROM QUINCY—The LNG Capricorn, General Dynam-
ics' third 125,000-cubic-meter liquefied natural gas tanker, has suc-
cessfully completed sea trials and was officially named during recent
ceremonies at Quincy, Mass., where she was built. Her sponsor was
Mrs. Campbell McC. Anderson, wife of the director (shipping and
special projects) Burmah Oil Co., Ltd. The LNG Capricorn will enter
service transporting LNG from Indonesia to Japan under long-term
charter to a subsidiary of Burmah Oil Co.
CENTRAL MARINE SERVICE. INC.
"Personal, total service...
inland, coastal
and all ocean."
24-hour service (504)581-2424
1200 Hibernia Bank Bldg., New Orleans, La. 70112
Use Of Fuel Additive
Shows Bunker Oil
Savings Of Over 10%
In a study funded by the Mari-
time Administration of the U.S.
Department of Commerce, Sea-
worthy Engine Systems of Essex,
Conn., has reported on the effect
of commercial fuel oil additives
on steamship boiler condition and
fuel economy. The most effective
additive was a dispersion of in-
organic magnesium oxide, organic
magnesium and organic manga-
nese, identified by the Rolfite
Company of Stamford, Conn., as
BIGGER AND
Announcing the West Coast's largest float-
ing drydock (902' x 185'), available January,
1979.
Bring us your repairs, conversions and new
construction contracts, for fast turnaround
and dollar savings.
NORTHWEST MARINE
IRON WORKS
U.S. Offices:
P.O.Box 3109
Portland, Oregon 97208
Telephone: 503-228-8222
TWX: 910-464-6107
Telegram: NorMarine
European
Representatives:
ATPAC Maritime
Agencies, Inc., Athens,
Piraeus, Greece
A Silchenstedt, Bergen,
Norway
A/S Krogstads, Oslo,
Noway
Paul Gregersen,
Copenhagen, Denmark
CHIEF
ENGINEER
FOR NEW GEOPHYSICAL EXPLORATION SHIP
Mobil Oil Corporation seeks a Marine Engineer with 2 or more years
experience as a Chief Engineer or First Engineer on a geophysical
exploration motor vessel equivalent to 2100 gross tons and who has
a U.S.C.G. license as Chief Engineer of Motor Vessels of at least
5700 h.p. We desire a BS in marine engineering, but will definitely
consider those with marine engineering courses/background.
Your responsibilities will include . . .
• Supervision of the ship's Engineering Department, including
maintaining records and inventories.
• Supervising shipyard and repair and overhaul work.
• Operation, maintenance and repair of all machinery, refrig-
eration, air conditioning and electrical systems on the ship.
You will be initially stationed in Japan until the Fall of 1978 and
then relocate to either Houston or Galveston, Texas. This position
requires approximately 60% travel at sea—with an 8 week on-board
and 4 week off schedule in addition to vacation time. We offer excel-
lent benefits and a good base salary commensurate to experience
plus additional bonus for on-board days. To receive immediate atten-
tion, send your complete resume, including salary history, in confi-
dence to:
Mr. C. A. Reinke, Jr., Dept. 101
MOBIL OIL CORPORATION
P.O. Box 900, Dallas, TX 75221
Mobil
We are an equal
opportunity employer M/F
one of the company's marine
products.
The actual savings realized was
a 10.3 percent improvement in
fuel economy and sharply reduced
boiler maintenance. The ships used
in the study each consumes 29,250
tons of Bunker C fuel per year,
assuming 17,500 shp normal pow-
er and 300 days per year under-
way. At a fuel cost of $80 per ton,
the yearly fuel bill is $2,300,000.
A 10.3-percent fuel saving repre-
sents $236,900. Additive cost is
less than 1 percent of fuel cost
for a final saving of over $210,000
per ship, per year. That is equiva-
lent to an energy saving of 13,694
barrels of oil per year, per ship.
The Maritime Administration
evaluation was conducted aboard
six jumboized Mariner-class (C6-
S-la) U.S.-flag containerships.
Boilers were "run against them-
selves" to strengthen test results.
Test boilers were thoroughly
cleaned and inspected and run for
one trip without the additive to
establish baseline data. The boil-
ers were cleaned and inspected,
and the additive was used for a
total of three trips (approxi-
mately 2,000 hours steaming
time). The boilers were inspected
again and then run without addi-
tive to reinforce baseline data.
Rolfite also offers a packaged
treatment system which auto-
matically meters additives into
the main fuel delivery line during
bunkering. Capable of hands-off
automatic operation, the system
assures thorough mixing of the
fuel and additive. Admiralty MM
remains fully dispersed and can-
not settle out in tanks and lines,
due to the submicron size of the
magnesium oxide particles.
Copies of the U.S. Maritime
Administration Report MA-RD-
920-77097 are available at $6 each
from Rod Rodrigue, The Rolfite
Company, 300 Broad Street, Stam-
ford, Conn. 06901. Full informa-
tion on Admiralty Marine Prod-
ucts is also available from Rolfite.
40 Maritime Reporter/Engineering News
Digital Wave Publishing