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

2008-03-25

2008-03-25

Thompson, Kenneth (Department: 3672)

Wells

Conduit wall or specific conduit end structure

C166S902000, C428S036910

Reexamination Certificate

active

07347258

ABSTRACT:
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.

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