NOV (Shaffer) Annulars
I would like to ask the forum what stripping experience they have had with NOV (Shaffer) annular elements when using 6 5/8"DP? Do you keep the standard 5" elements in the BOP or change to the 6 5/8" element? Have you seen or heard of any failures?
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Posted by
Tom Macrae
Well Control Specialist - Senior Drilling Supervisor
Discussions: 7
Replies: 37
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