where expertise comes together - since 1996 -

The Largest Open Access Portal of Nondestructive Testing (NDT)

Conference Proceedings, Articles, News, Exhibition, Forum, Network and more

where expertise comes together
- since 1996 -

620 views
Career Discussions
William Blum
Consultant, Training, Level III Services
NDT Consulting Group Inc., USA, Joined Nov 2000, 92

William Blum

Consultant, Training, Level III Services
NDT Consulting Group Inc.,
USA,
Joined Nov 2000
92
08:02 Jul-20-2004
UT Thickness testing on VLCCs

Can anyone with experience on VLCCs answer these questions?

1. Can you share some experience of climbing in these tanks eg, fixing points etc.?

2. Does the vessel supply an inflatable raft in the event of tank flooding (doing readings from the raft)?

Thanks,
_________________
William Blum



 
 Reply 
 
John O'Brien
Consultant, -
Chevron ETC , USA, Joined Jan 2000, 280

John O'Brien

Consultant, -
Chevron ETC ,
USA,
Joined Jan 2000
280
00:11 Aug-03-2004
Re: UT Thickness testing on VLCCs
Access issues vary greatly dependnet upon vessel design and age. Needless to say most vessels were never designed for in-service inspection access. Many internal tanks have nothing more than one access ladder and staging at one side of each tank.

Others may have internal structural steel work which provides a fixing platform for rope access technicians.

A number of specialist access companies have designed custom solutions to assist in solving these problems.

Working off rafts etc. has a number of safety issues regarding how well the tanks are cleaned and vented during operations. Also how much access you have to get a raft in through an access hatch. Working off inflatable rafts is not the most satble of platform.

Recently a lot of work is done with magnetic crawlers depending upon the type, number and distribution of measurements required to satisfy the classification society.

On double hulled tankers there may be some access through the void spaces agaion dependent upon design.

Our experienceis that ship owners want you to provide everything and do it as quickly and cheaply as possible.



 
 Reply 
 

Product Spotlight

Scatter Correction for Industrial Cone-Beam Computed Tomography (CBCT)

Download our white paper on Scatter Correction for Industrial Cone-Beam Computed Tomography (CBCT)
...
Using 3D VSHARP, a fast GPU-Based Linear Boltzmann Transport Equation Solver here: http://bit.ly/2Y0t78P
>

GEKKO - Portable Phased Array Testing with TFM in Real-Time

The portable phased array testing system GEKKO provides 64 parallel test channels. On creating testi
...
ng parameters the operator is assisted by the CIVA software. Due to its modular set-up the GEKKO instrument is suitable for operators of all skill levels.
>

FAAST-PA! OEM Patented phased Array for high speed UT inspection

Multiangle, Multifocus, Multifrequency, Multibeam. Instead of stacking UT electronics and having m
...
any PA probes, FAAST-PA is able to transmit all delay laws within ONE single shot in Real time.
>

Combination of Digital Image Correlation and Thermographic Measurements

The combination of measuring results from the digital image correlation (ARAMIS, DIC) and temperat
...
ure measuring data from infrared cameras permits the simultaneous analysis of the thermal and mechanical behavior of test specimens in the materials and components testing field.
>

Share...
We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info
Accept
top
this is debug window