Coated tools for use in oil well pipes

Details Coated tools for use in oil well pipes Coated tools for use in oil well pipes

E - Fixed Constructions

21

B

E21B 33/12 (2006.01) B05D 5/08 (2006.01) B05D 7/14 (2006.01) B32B 15/082 (2006.01) C23C 28/00 (2006.01) C23F 15/00 (2006.01) C23F 17/00 (2006.01) F16L 58/00 (2006.01)

Patent

CA 2582970

The present invention relates to a tool for use in an oil pipe having a fluoropolymer coating imparting substantially reduced adhesion of asphaltenes, paraffin wax, and inorganic scale, so as to reduce plugging of said tool, and impermeability to salt water so as to protect the tool pipe from corrosion. Such a tool is particularly useful in a pipe coated in a similar manner.

L'invention concerne un outil utilisé dans un tuyau de pétrole comprenant un revêtement fluoropolymère qui permet de réduire sensiblement l'adhérence des asphaltènes, de la cire de paraffine et du tartre inorganique, ce qui empêche le bouchage de l'outil et lui confère une imperméabilité à l'eau salée le protégeant contre la corrosion. Cet outil est particulièrement utilisé dans un tuyau revêtu de manière similaire.

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