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Technology in Australia 1788-1988Australian Academy of Technological Sciences and Engineering
Table of Contents

Chapter 6

I Construction During The Settlement Years

II The Use Of Timber As A Structural Material

III Structural Steel

IV Concrete Technology

V Housing

VI Industrialised Pre-cast Concrete Housing

VII Ports And Harbours

VIII Roads

IX Heavy Foundations

X Bridges

XI Sewerage

XII Water Engineering

XIII Railways

XIV Major Buildings

XV Airports

XVI Thermal Power Stations

XVII Materials Handling

XVIII Oil Industry
i All Welded Storage Tanks
ii Insulated Fuel Oil Pipeline
iii Wartime Concrete Tanks
iv The Cobia 2 Sub-sea Completion
v Mackerel and Tuna Platforms
vi Snapper Post-Trenching Plough
vii The North West Shelf Project Plough

XIX The Snowy Mountains Scheme

XX The Sydney Opera House

XXI The Sydney Harbour Bridge

XXII Hamersley Iron

XXIII North West Shelf

Sources and References


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The Cobia 2 Sub-sea Completion

Sub-sea completions are recognised world-wide as a cost effective means of developing marginal reservoirs, accelerating production and draining reservoir extremities which cannot be reached from conventional platforms. To date, more than 280 sub-sea completions have been installed around the world. Cobia 2, the first sub-sea completion in Australian waters, began production in Bass Strait in June 1979 (Fig. 72). Both the Cobia 2 and the Mackerel A-14 wells are considered to be significant achievements. The Mackerel A-14 achieved a combination of extremely high angle, together with deep true vertical depth drilling. While other wells may have been drilled to higher deviation none, to our knowledge, has been drilled to the depth that was attained by the well drilled from the Mackerel 'A' platform. The Cobia-2 well represents a completion which is also at the forefront of technology, primarily because of the use of the electro-hydraulic control system, plus the length of flowline used.

Figure 72

72 Cobia 2 Subsea Completion, Bass Strait, Victoria

People in Bright Sparcs - Gorrie, A. W.

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© 1988 Print Edition page 417, Online Edition 2000
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