Ball valve housing

• US 4,444,267 A
• Filed: 12/30/1981
• Issued: 04/24/1984
• Est. Priority Date: 12/30/1981
• Status: Expired due to Term

• Current Assignee: Halliburton Company
• Original Assignee: Halliburton Company
• Inventors: Beck, Harold K.
• Primary Examiner(s): Novosad, Stephen J.
• Assistant Examiner(s): Neuder, William P.
• Application Number:
  US06/307,913
• Time in Patent Office: 846 Days
• Field of Search: 251/63.4, 166/316, 166/330, 166/331
• US Class Current: 166/321
• CPC Class Codes: E21B 2200/04 Ball valves
• CPC Class Codes: E21B 34/10 operated by control fluid supplied from outside the borehole
• CPC Class Codes: E21B 47/117 Detecting leaks, e.g. from tubing, by pressure testing

Abstract

An improved valve member retention assembly comprising a cage assembly containing the lower valve seat and spherical valve member therein.

Claims

1. A well testing apparatus having an annular adapter, annular outer case, annular upper mandrel including an annular recess in the interior in one end thereof, annular power mandrel, an actuation arm having a lug thereon, annular lower mandrel, and a spherical valve member having recesses therein, a bore therethrough, and being restrained from axial movement within said valve testing apparatus between an upper valve seat received and retained in the annular recess in the end of the annular upper mandrel and lower valve seat by a valve cage, said spherical valve member movable within said well testing apparatus by the lug means of said actuation arm engaging the recesses in said spherical valve member, said valve cage comprising:

an annular elongated cylindrical member having a lower portion having a bore therethrough, an intermediate portion having said lower valve seat retained therein abutting an annular shoulder in the intermediate portion and an axial recess in the exterior surface thereof slidably retaining said actuation arm therein, a valve portion which slidably receives a portion of said actuation arm therein, and an upper portion releasably secured to said annular upper mandrel to retain said spherical valve member from axial movement within said testing apparatus.

2. The well testing apparatus of claim 1 wherein said cage means further comprises an annular chamfered surface at one end of the bore in the intermediate portion adjacent the end of said lower valve seat which engages said spherical valve member.

3. A well testing apparatus having an annular adapter, annular outer case, annular upper mandrel, having a recess in the interior in one end thereof, annular power mandrel, actuation arm having a lug thereon, annular lower mandrel, and a spherical valve member having recesses therein, a bore therethrough, and being restrained from axial movement within said valve testing apparatus between an upper valve seat and lower valve seat by a valve cage, said spherical valve member movable within said well testing apparatus by the lug of said actuation arm engaging the recesses in said spherical valve member, said valve cage comprising:

an annular cylindrical member having axial recess in the exterior surface thereof slidably retaining said actuation arm therein, having an intermediate portion having a bore therein which receives said lower valve seat therein, an annular shoulder which abuts one end of said lower valve seat, an annular chamfered surface at one end of the bore therein adjacent the end of said lower valve seat which engages said spherical valve member, having a valve portion receiving said spherical valve member therein and an upper portion releasably secured to said annular upper mandrel to retain said spherical valve member from axial movement within said testing tool.