For some designs, there is a place on the body of the casing/tubing hanger where rig tongs can be applied. Ideally, this is in a non-sealing area. I have seen this in a lot of older designs. Another way is to thread a pup-joint into the hanger before shipping to location. Machine tongs are...
Look on page 276 and 277 of API 6A 20th Ed. You will find the specs for nominal blind flanges of nominal size 1-13/16 thru 5-1/8. Keep in mind, API nominal sizes differ in nomenclature. The nominal sizes available are 1-13/16, 2-1/16 2-9/16, 3-1/16, etc... A scan through 6A and you get the gist...
API 5CT released a new edition in July 2011: API 5CT 9th Edition. Would anyone be able to provide me the coupling OD for Long Casing, specifically 7" and 5 1/2".
I am trying to determine the seating stress for a spherical-to-conical metal seal.
I am having a hard time determining the seat stress as the surface contact is very small.
