Apparatus for treating wells

Details Apparatus for treating wells Apparatus for treating wells

1976-10-26

1979-08-14

Purser, Ernest R.

Wells

With below and above ground modification

Above ground actuating means for below ground device

166 55, 166315, 166217, E21B 2300

Patent

active

RE0300705

ABSTRACT:
A method of and apparatus for treating wells to provide surface controlled subsurface safety systems in the wells, whether previously completed wells or newly completed wells. A method and apparatus is provided for installing receptacles in the well flow conductors below the surface for receiving surface controlled subsurface safety valves therein for controlling undesired flow from the well in the event of emergency, disaster or accident damaging the well surface flow controlling system or threatening the integrity thereof. Also, a method and apparatus is provided for installing a hanger for well flow conductors in the well casing below the surface for supporting the flow conductor or conductors in the well casing below the surface and then installing the receptacles in the well flow conductors below the surface for receiving surface controlled subsurface safety valves therein.

REFERENCES:
patent: 2251125 (1941-07-01), Gardner
patent: 2917115 (1959-12-01), Stanberry
patent: 2918125 (1959-12-01), Sweetman
patent: 3208531 (1965-09-01), Tomplen
patent: 3216501 (1965-11-01), Page
patent: 3380528 (1968-04-01), Timmons
patent: 3441584 (1968-11-01), Sizer et al.
patent: 3696868 (1972-10-01), Taylor
patent: 3731742 (1973-05-01), Sizer et al.

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