Retrievable sealing plug and method of making same

Details Retrievable sealing plug and method of making same Retrievable sealing plug and method of making same

1990-01-03

1991-03-19

Britts, Ramon S.

Wells

Above ground apparatus

Inner member anchor or seal with lateral port

166378, E21B 3303

Patent

active

050007190

ABSTRACT:
A removable sealing plug for the bore of a high pressure oil or gas well incorporating at least one expandable sealing ring mounted on at least one plug part so as to be frictionally engageable with the surface of the bore and a rotatable plug part screw-threaded in the bore and having a coupling device to the sealing ring mounting designed to prevent rotation of the sealing ring and consequent damage to the bore surface or the sealing ring when the rotatable plug part is screwed into or out of the bore for sealing plug installation or removal purposes.

REFERENCES:
patent: 3299958 (1967-01-01), Todd
patent: 4444401 (1984-04-01), Roche et al.
patent: 4627489 (1986-12-01), Reed
patent: 4804045 (1989-02-01), Reed

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