Wellhead stuffing box for polished rod and accessories for same

Details Wellhead stuffing box for polished rod and accessories for same Wellhead stuffing box for polished rod and accessories for same

1991-01-09

1992-08-11

Dang, Hoang C.

Wells

Above ground apparatus

With seal for reciprocating member

166 80, 277 30, 277 59, E21B 3303

Patent

active

051370832

ABSTRACT:
A wellhead stuffing box for a polished rod includes a body with an elongated opening extending through it to receive the polished rod. Packing in the body makes a sliding seal around the polished rod and a static seal against the interior of the body. Internal pushers are provided for compressing the packing with the required force for appropriate sealing, and the internal pushers cannot be changed without disassembling the body.

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patent: 4907650 (1990-03-01), Heinonen
patent: 4917190 (1990-04-01), Coppedge

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