Method and apparatus for treating well components with a corrosi

Details Method and apparatus for treating well components with a corrosi Method and apparatus for treating well components with a corrosi

1980-02-19

1982-04-27

Novosad, Stephen J.

Wells

Processes

166 72, 166188, 166310, 166325, 166328, E21B 3408, E21B 3706

Patent

active

043265855

ABSTRACT:
A method and apparatus as provided for periodically supplying a quantity of fluid containing a corrosion inhibitor or other treating fluid to both the internal and external surfaces of downhole components of a subterranean well. The corrosion inhibitor is introduced in the fluid that normally fills the annulus defined between the well casing and the production string. This fluid is periodically subjected to a cyclic pressure and the cyclic pressure is employed to operate valving apparatus disposed in the vicinity of the packer to periodically inject a quantity of the annulus fluid containing the corrosion inhibitor into a bypass passage extending through the packer and, hence, into the production fluid, which the carries the corrosion inhibitor to internally disposed downhole components in the well bore.

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