Method of producing side-pocket mandrels free of welds

Details Method of producing side-pocket mandrels free of welds Method of producing side-pocket mandrels free of welds

E - Fixed Constructions

21

B

26/111, 166/42

E21B 23/06 (2006.01) B23P 13/00 (2006.01) E21B 23/03 (2006.01)

Patent

CA 1210324

ABSTRACT Method of producing side-pocket mandrels free of welds comprises a series of boring and machining steps by mechanical action and/or electro-erosion to produce a mandrel having at least one valve pocket and discriminator.

436494

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