Patent ID: 9611971
Date: 2017-04-04
CPC Classifications: B65D,E21B,F16L

Claim:
1. A temporary protector of a male end of a component of a threaded tubular connection for drilling or operation of oil wells, including externally at least one threading and including a free end part, the component including a body downstream of the male end, the protector comprising: a coupling configured to protect at least a part of the external threading and the free end part and including a threading that can engage with the threading of the male end; and a sealing device configured to be placed in contact with the component, at least in a part located downstream of the external threading of the male end, and with the coupling to provide a seal downstream of the external threading; wherein the sealing device comprises a portion of small diameter with a length between 20 and 80 mm and with a bore as a cylinder of revolution, the portion of small diameter including an internal sealing surface that can interact hermetically with an external surface of the body having a maximum tolerance on diameter above 1% and a roughness Ra greater than 10 μm, and a portion of large diameter integral with the portion of small diameter and including an internal sealing surface interacting hermetically with an external surface of the coupling, the sealing device being radially elastic, and wherein the sealing device comprises at least one annular extra thickness on the portion of small diameter and projecting outwards.