| 摘要 |
The present invention relates to threaded gaskets for tubes comprising a cap to essentially protect tubes and gaskets against corrosion and improve fluid flow conditions. The gasket comprises two threaded tubular components, each being provided with a radial annular surface. The interior wall of the components and annular surfaces are coated with a layer. The annular surfaces are shaped in a way so that, when threaded, the surfaces are partially in butt contact by their exterior portion, the interior portion creating a progressive aperture zone, which is filled at least in part by the layers of two components. The gasket of the present invention is particularly related with exploration of oil and gas reservoirs in the presence of corrosive fluids.
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