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ABC Diving

SEAWORKS (Vanuatu), Main Street, Nambatu, P.O. Box 3242 Port Vila – Phone +678 7100 230 (WhatsApp)

SEAWORKS (New Caledonia), BP 7036 – 98801 Noumea Cedex – Phone +687 87 55 05

We operate throughout Oceania Islands, with the capacity to stay working at remote locations

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Complete Diving Services to Vessels & Civil Engineering Industry

Underwater INSPECTION Diving: Why

In compliance with all major classification societies, ABC Diving performs following inspections:
Vessels
Mairitime Infrastructures
Corrosion Inspections
General Surveys

VESSELS:

  • On request of Shipowners, Surveyors, Insurers, Classification Society Inspectors
  • Pre-purchase, pre/post Charter, pre and post dry docking
  • Damage assessment
  • To locate and remove obstruction hazardous to vessels
  • Hull coating

MOORINGS:

  • Owner peace of mind
  • Insurance requirement in case of claim

Maritime INFRASTRUCTURES:

  • New Construction or upgrading projects (wharves, jetties, seawalls, pipelines, etc..)
  • Damage survey report

WATERWAYS & HARBOR:

  • Clearance survey report (wrecks removal, dredging, etc….)

In general terms, PROGRAMMES are arranged so as to perform:

01
General Initial Survey
A GENERAL INITIAL SURVEY, before any cleaning, to see broadly if there is any obvious damage or problem.
02
Corrosion Inspection
General tasks, such as SEABED surveys, MARINE GROWTH surveys and CORROSION inspection.
03
Underwater Cleaning
Appropriate underwater CLEANING.
04
Critical Inspection
CRITICAL Inspection tasks in likely areas, in relation to less obvious (or even invisible) defects. The most important of these is CRACKING. This critical inspection is to detect defects and then, if found, to accurately size them.

Visual Inspection

The bulk of inspection data is derived from visual inspection techniques.

Visual inspection is used to inspect structures for obvious damage such as missing parts, dents, buckles and tears; and to observe and record underwater conditions and features.
Underwater visual inspection is carried out by the human eye, still photography and closed circuit television (CCTV) or video.
These methods are used in conjunction with verbal and written reports from the underwater inspector, who may be a diver or a ROV pilot. Both manned and Remotely Operated Vehicles are normally fitted with still and video cameras.

It must be remembered that visual inspection can only detect visible defects. While this seems obvious, cracking defects can be very difficult to find by visual methods (although once found they may then be able to be ‘seen’), and may indeed be invisible to the naked eye or camera.

The various INSPECTION ACTIVITIES have a
basic LOGICAL ORDER

Some tasks have to be done prior to cleaning, while others must be done afterwards. For example, most NDT cannot be performed before cleaning, while obviously a marine growth survey cannot be performed afterwards.

Once this is understood, the various inspection requirements of a client can be arranged so as to create the most efficient inspection programme.

 

The inspection is a complex subject, some aspects of which involve theories and formulae beyond the scope of this page. More detailed information may be obtained from other sources or Contact us.

You may be interested to know about: our video and still-photography equipment

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