Page 35: of Maritime Reporter Magazine (October 1983)

Launching ceremony for the L-907 offshore rig at Daewoo's Okpo shipyard

Daewoo Delivers $74-Million

Offshore Rig

Atlantic Drilling Company, a member of the Ben Line Group of the United Kingdom, will receive a semisubmersible drilling rig built by Daewoo Shipbuilding and Heavy

Machinery Ltd., Seoul, Korea. The rig was christened Benreoch at

Daewoo's Okpo Shipyard.

The $74-million rig is a Friede and Goldman L-907 self-propelled facility, 270 feet long, 203 feet wide, and 116 feet in height frorrt the keel to the main deck. It has living quarters for 100 persons.

The L-907 can drill to a depth of 25,000 feet in water up to 1,500 feet. It is built to endure winds of 110 knots, waves of 100 feet and temperatures of 20 degrees below zero Centigrade.

Atlantic Drilling will charter the rig to Tricentrol Exploration

Overseas Ltd. of England, which will use it to explore waters off the coast of New Zealand.

Daewoo's Okpo Shipyard has de- livered four semisubmersible rigs, three going to U.S. firms and one to England.

Watercraft America Inc.

Offers Free Color Brochure

On Enclosed Survival Craft

Watercraft America Inc., Edge- water, Fla., presents a line of to- tally enclosed survival craft used on cargo ships, drilling ships, oil- tankers and offshore platforms.

Features include: automatic self righting, water spray cooling, compressed air system, wide doors, control console, hook release, Lister diesel engine and USCG approved.

For a free, four-color brochure,

Write 76 on Reader Service Card 'Now...with our Marine Travelift, we are not limited by our railway,'

Bill Stevens, President

Stevens Towing Co.

Yonges Island, S.C. sJ

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Marine Travelift 1SOAMO hauling a 61 ft. long 31 ft. wide — 14 ft deep "Lash Barge."

Barges can be stacked two high to conserve yard space.

WILDEN AIR OPERATED

DOUBLE DIAPHRAGM PUMPS offer • No Electrical Connections • Abrasion Resistant • Self priming • Submersible • Variable volume and pressure • Portable • Simple Clamp band construction • Write for free literature and prices

In

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It also stands up to chemicals, grout, resin, oil, glue and low density powders.

The heart of the Wilden air-oper- ated double diaphragm pump is its unique air valve which shifts the air supply to both dia- phragms alternately with com- plete reliability under all condi- tions of head and flow.

Up to 90% solids and over 250' heads are no problem for the

WILDEN PUMP. Our double diaphragm design cuts velocity in pump to half total discharge velocity. The most abrasive slur- ries are handled with ease since there are no seals and no metal to metal contact.

Volume is infinitely variable by controlling air flow to pump, from a few gallons per minute to over 14,000 gallons per hour. No pressure relief valve is required and the pump can run dry inde- finitely.

Wilden pumps are available with wetted parts in aluminum, cast iron, stainless steel, and Hastel- loy C. Non-wetted parts in alu- minum or cast iron. Elastomers in Neoprene, Buna N, Nordel,

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October 1983 Write 546 on Reader Service Card Write 582 on Reader Service Card 39