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Technical Discussions
shakutty
shakutty
07:39 Apr-17-2009
DP/Pitting indication

Hi,
Is there any limit on pitting while inspecting (DPI) service drilling tools (especially on thread?). Indication is not strong bleeding one (just reddish one comparing with other developed area). If any one is ready to help me contact my mail Id

shakutty
nilson_nick@yahoo.co.in

    
 
 Reply 
 
gary
gary
09:19 Apr-17-2009
Re: DP/Pitting indication
In Reply to shakutty at 07:39 Apr-17-2009 (Opening).

Hi
If the threaded connection in question is to be tested under DS1/NS2 spec then fluorescent MPI Inspection is the reccomended test method, under the same spec it also gives accept/ reject criteria for thread pitting.

    
 
 Reply 
 
Andreas
Andreas
08:49 Apr-18-2009
Re: DP/Pitting indication
In Reply to gary at 09:19 Apr-17-2009 .

Service drilling tools ,can benon magnetic like all tools for making deviated wells.I think DPI stands for dye penetrant inspection , so you inspection on a non magnetic tool.Therefore fellow the direction of the manufacturer of the tools and all the other as mention before.
Also the profile of threads need to be checked.Normally this kind of inspection performed by companies specilized in inspection of oilfield equipment.

Regards
Andreas

    
 
 Reply 
 
David Baeley
Engineering,
Australia, Joined Dec 2014, 17

David Baeley

Engineering,
Australia,
Joined Dec 2014
17
11:25 Feb-05-2015
Re: DP/Pitting indication
In Reply to shakutty at 07:39 Apr-17-2009 (Opening).

Drilling tools used with drilling pipes connections.

    
 
 Reply 
 
Brett Davis
Sales, Sales, Applications, Training, Services, NDT, Pipeline
PTC & DavisBrett LP, USA, Joined Oct 2012, 13

Brett Davis

Sales, Sales, Applications, Training, Services, NDT, Pipeline
PTC & DavisBrett LP,
USA,
Joined Oct 2012
13
00:02 Feb-10-2015
Re: DP/Pitting indication
In Reply to shakutty at 07:39 Apr-17-2009 (Opening).

Eddy current is another form of evaluating these tools. I would need to have more information but it is definitely a quick inspection without the need for black lights. Give me a call and we can discuss more.

Brett Davis
832-248-2502 mobile
281-339-9993 office

    
 
 Reply 
 

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