[BITList] down the hole

[FS]

  ct
   don't know if the tapered tread was ever patented, did they not have 
it on the old chimney sweep brushes?
frank

On 7/13/2010 12:32 AM, CT's wrote:
> frank
> seen the tapered thread often - clever and simple idea, did anyone 
> patent it?
> yes, I can see the the second scenario - joint findings it's way back 
> down.
> tks for the info and expertise.
> ct
>
> *From:* FS <mailto:franka at iinet.net.au>
> *Sent:* Monday, July 12, 2010 9:49 AM
> *To:* BitList <mailto:bitlist at lists.bcn.mythic-beasts.com>
> *Subject:* Re: [BITList] the 2 pipe mystery
>
> Hi ct
> well the the pipe thread is tapered and only engages tightly at the 
> end of its makeup so only needs a little disengagement to be 
> completely free to drop  free of the one its connected to and there 
> would be a set of pipe rams in the BOP which wouldn't allow it though 
> to the open hole, another way might have been that they were getting 
> ready to set a triple back as the well blew out the pipe in the hole 
> would have lifted the slips clear of the rotary table and the joint 
> that was being set back was let go by the derrickman and it found its 
> way back down the well which seems feasible to me assuming that they 
> were in the process of pulling the drill string out of the hole
> frank
>
>
> _______________________________________________
> To unsubscribe from this email List, send an email to:
> BITList-unsubscribe at lists.bcn.mythic-beasts.com
>
> BITList mailing list
> BITList at lists.bcn.mythic-beasts.com
> http://lists.bcn.mythic-beasts.com/mailman/listinfo/bitlist
>
>
>
> No virus found in this incoming message.
> Checked by AVG -www.avg.com
> Version: 9.0.830 / Virus Database: 271.1.1/3001 - Release Date: 07/13/10 00:49:00
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.bcn.mythic-beasts.com/pipermail/bitlist/attachments/20100713/4f0ea5f0/attachment.shtml