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Technical Discussions
anjafo
NDT Inspector
Norway, Joined Aug 2009, 204

anjafo

NDT Inspector
Norway,
Joined Aug 2009
204
23:24 Aug-13-2009
drill collar elevator inspection

What is the requirement for full service on these?

We usually just receive them from customer and perform a fluorescent mpi using a yoke, I think they perform functional tests such as checking latches and load test of lugs.


What specs are used?

Can eddy current be used as an alternative to MPI?

thanks

    
 
 
Andreas
NDT Inspector, Specially in the oilfield
Tuboscope Vetco(Deutschland)Gmbh, Germany, Joined Oct 1999, 126

Andreas

NDT Inspector, Specially in the oilfield
Tuboscope Vetco(Deutschland)Gmbh,
Germany,
Joined Oct 1999
126
17:25 Aug-15-2009
Re: drill collar elevator inspection
In Reply to anjafo at 23:24 Aug-13-2009 (Opening).

The specification is the API Spec 8B.Spec specified MPI .
Depends on working time you need to perform a 6 month or yearly inspection.For the 6 month inspection the elevator need not to be disassembled and only the accessible load bearing zone need to be inspected.For the yearly inspection the elevator need to be disassembled and 100% of service need to be inspected.
Remark: Before I inspect something ,I should know the specification for the inspection ,otherwise how you know the acceptance criteria etc.
Regards
Andreas

    
 
 
anjafo
NDT Inspector
Norway, Joined Aug 2009, 204

anjafo

NDT Inspector
Norway,
Joined Aug 2009
204
17:32 Aug-15-2009
Re: drill collar elevator inspection
In Reply to Andreas at 17:25 Aug-15-2009 .

Thanks.

Is the acceptance criteria in the API spec?

Thats why Im looking into these things as there is a couple of things we test regular that we dont have the best procedures for.

WECO connections is another one?

    
 
 
shajeer hashim
shajeer hashim
17:37 Aug-15-2009
Re: drill collar elevator inspection
In Reply to anjafo at 23:24 Aug-13-2009 (Opening).

See, the crack might happen at any where during handling, so the client will ask the costumer to do inspection before and during drilling. It’s very difficult to say what spec. using for inspection. Usually costumer asks us to find crack.
No, eddy current inspection can be done on painted surface. it need proper caliberation. But in MPI surface must be clean with out any particles. As a matter of fact we won’t get it clean(with out paint). We get the surface with more than 3 or more coats of paint. Both have its own limits.

This is my opinion. I don't know about others.

    
 
 
Andreas
NDT Inspector, Specially in the oilfield
Tuboscope Vetco(Deutschland)Gmbh, Germany, Joined Oct 1999, 126

Andreas

NDT Inspector, Specially in the oilfield
Tuboscope Vetco(Deutschland)Gmbh,
Germany,
Joined Oct 1999
126
17:43 Aug-15-2009
Re: drill collar elevator inspection
In Reply to anjafo at 17:32 Aug-15-2009 .

GET THE SPEC AND YOU WILL SEE:

Regards

Andreas

PS: No cracks aloud and dimension on load bearing port.

    
 
 
anjafo
NDT Inspector
Norway, Joined Aug 2009, 204

anjafo

NDT Inspector
Norway,
Joined Aug 2009
204
17:44 Aug-15-2009
Re: drill collar elevator inspection
In Reply to shajeer hashim at 17:37 Aug-15-2009 .

When we get them they are usually shot blasted so this is good.

And we use the "no cracks" or "severe mechnical damage" as the acceptance criteria.

Dont find much else anyway.

    
 
 
Andreas
NDT Inspector, Specially in the oilfield
Tuboscope Vetco(Deutschland)Gmbh, Germany, Joined Oct 1999, 126

Andreas

NDT Inspector, Specially in the oilfield
Tuboscope Vetco(Deutschland)Gmbh,
Germany,
Joined Oct 1999
126
17:48 Aug-15-2009
Re: drill collar elevator inspection
In Reply to shajeer hashim at 17:37 Aug-15-2009 .

Thats why the spec secified the inspection intervall as guide , the inspection intervall can be shorten to.
Also stated the spec that you need to fellow the recomendation of the manufacturer and he you supply you als with drawings of the critical areas.

Regards
Andreas

    
 
 
Andreas
NDT Inspector, Specially in the oilfield
Tuboscope Vetco(Deutschland)Gmbh, Germany, Joined Oct 1999, 126

Andreas

NDT Inspector, Specially in the oilfield
Tuboscope Vetco(Deutschland)Gmbh,
Germany,
Joined Oct 1999
126
17:55 Aug-15-2009
Re: drill collar elevator inspection
In Reply to anjafo at 17:44 Aug-15-2009 .

What's about the dimension of the so called ears and the allowance of play on the center pin etc.
Get the spec read them and work according to them and fellow also the requirements of the manufacturer and of the owner or user when given.
Anyway I surprise that elevator are used foe the handling of drill collars.

Regards

Andreas

    
 
 
anjafo
NDT Inspector
Norway, Joined Aug 2009, 204

anjafo

NDT Inspector
Norway,
Joined Aug 2009
204
19:01 Aug-15-2009
Re: drill collar elevator inspection
In Reply to Andreas at 17:55 Aug-15-2009 .

our customer probably performs those.

    
 
 
David Baeley
Engineering,
Australia, Joined Dec 2014, 17

David Baeley

Engineering,
Australia,
Joined Dec 2014
17
07:05 Dec-23-2014
Re: drill collar elevator inspection
In Reply to anjafo at 23:24 Aug-13-2009 (Opening).

Drill collars can attach with oilfield equipments. Drilling machine is important working equipment for used heavy pressure drilling tools and machine for work.

    
 
 

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