Page 23: of Maritime Reporter Magazine (September 15, 1980)

of this class, of which 43 have been con- tracted for with Todd's San Pedro and Se- attle yards and Bath Iron Works in Maine.

RIG WORK UNDER WAY — Ocean Drilling and Exploration Company's Barge A (fore- ground), a 7,500-ton submersible, has been moved onto land for change-out of its four stability columns, installation of a deepwater tank module, and replacement of more than 130 tons of steel in the rig's mat, at Ingalls

Shipbuilding's yard at Pascagoula, Miss.

The drill barge was picked up and moved onto land by Ingalls's floating drydock and land transfer system. In the background is

ODECO's jackup rig Gulftide, presently in the shipyard for placement of footings.

Other work includes the 300-foot deck barge,

SKUA's Able Turtle (left center), and Mc-

Dermott Incorporated's 420-foot Lay Barge 28 (behind Gulftide).

National Supply Patents

Subsea Template System —Literature Available

National Supply Company has received a

U.S. patent for a subsea template system for multiple well drilling and production.

Subsea template system for multiple well drilling and production has been patented by National Supply

Company, a subsidiary of Armco. System is said to reduce time and cost of underwater operations.

The template design was developed by

National Supply's Well Control Systems en- gineering group, Houston, to reduce time and cost of underwater operations, whether by remote mechanical means or by divers, when installing subsea equipment and con- necting it to a floating production vessel.

The system provides for assembly pre- piping and testing of drilling and production modules on land to minimize at-sea and subsea installation operations, according to

National Supply.

The company helped pioneer subsea pro- duction to floating vessels. Floating systems allow earlier production than fixed platforms and require a lower capital investment, notes

National Supply. These advantages make floating production particularly suited to fields where reservoir potential is still un- defined and to small fields where the eco- nomic potential does not justify the cost of a fixed platform, explains the firm.

By reducing diver operations, the tem- plate system is particularly suited to deep- water fields where fixed platforms large enough to sit on the sea bottom may not be practical or physically possible.

The templates in the patented system come in two-well modules that serve as guides for drilling and as bases for com- pletion or landing of trees and a manifold/ riser module. Template modules can be read- ily joined to provide for any number of wells. Drilling can be performed directionally using conventional subsea methods.

Prepiped flow lines between tree and tem- plate automatically engage when the tree is landed, eliminating problems of laying and attaching flow lines.

The United States patent for the system,

No. 4,192,383, is officially held by Armco,

National Supply's parent company.

For free literature containing complete details on the new subsea template system, write to William C. Marmack, Dept. MR,

Armco National Supply, 1455 West Loop

South, Houston, Texas 77027.

HOSE McCANN

Rotating Beacon Light

U.S.C.G. ACCEPTANCE

The Hose-McCann Model

RB-WT rotating beacon light is watertight and vapor tight, available in five voltages, five colors and two mounting configura- tions, voltage range \ makes the RB-WT adaptable to all marine applications.

Light fixtures can be either pendant (pipe) or ceiling (box) I mounted. Colors are easily changed by replacing the dome with any of the five colors desired. The (

RB-WT has a high intensity beam that rotates 360°.

FEATURES: • LOW CURRENT CONSUMPTION. • LIGHT WEIGHT. • THREE PRECISION GROUND

PARABOLIC GLASS

MAGNIFYING LENSES. • FADE AND SHATTER-PROOF

LEXAN DOME. • HEAVY DUTY ONE PART MOTOR

WITH SEALED GEAR TRAIN. • DOMES AVAILABLE IN

RED, BLUE, AMBER, GREEN

AND CLEAR. • WATER AND VAPOR TIGHT. • IMPORTANT: WHEN ORDERING,

GIVE A FULLY WORDED THREE

PART DESCRIPTION OFFERING 1. VOLTAGE 2. MOUNTING (PEN-

DANT OR BOX) 3. DOME COLOR.

RB-WT-AVAILABLE IN BOTH PENDANT AND BOX MOUNT

Write for product data bulletin RB-WT containing complete specifications and parts diagrams.

HOSE McCAIMN

TELEPHONE CO., INC. 9 SMITH STREET • ENGLEW00D • NEW JERSEY 07631

PHONE 201-567-2030

CABLE ADDRESS: H0SETELC0 • TELEX NO. 642837

ORIGINATORS AND PIONEERS OF SOUND POWERED TELEPHONES FOR MARINE USE

Write lor Complete Catalog D-661 MR

September 15, 1980 25