US 2004/0104024 A1Published application

Flow completion apparatus

AssigneeFMC Technologies, Inc.

InventorsRichard D. Kent, Michael R. Tierney, Gregory L. Glidden, Christopher E. Cunningham, Christopher D. Bartlett

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Abstract

A flow completion apparatus comprises a wellhead housing installed at an upper end of a well bore and a tubing spool connected over the wellhead housing. The tubing spool includes a central bore extending axially therethrough, a production outlet communicating with the central bore and an annulus passageway communicating with the tubing annulus. A tubing hanger is supported in the central bore and includes a production bore extending axially therethrough and a production passageway communicating between the production bore and the production outlet. The tubing spool comprises a workover passageway extending between the annulus passageway and a portion of the central bore located below the top of the tubing hanger. Furthermore, the tubing hanger comprises an annulus bore extending between the workover passageway and the top of the tubing hanger.

Claims11

Dependent claims

A flow completion apparatus for controlling the flow of fluid through a tubing string which extends through a wellhead hosing that is installed at an upper end of a well bore and defines a tubing annulus surrounding the tubing string, the flow completion apparatus comprising:

a tubing spool which is positioned over the wellhead housing and which includes a central bore that extends axially therethrough, a production outlet that communicates with the central bore, and an annulus passageway that communicates with the tubing annulus;
a tubing hanger which is supported in the central bore, is connected to an upper end of the tubing string, and includes a production bore that extends axially therethrough and a production passageway that communicates between the production bore and the production outlet;
a closure member which is positioned in the production bore above the production passageway;
an annular seal which is positioned between the tubing hanger and the central bore above the production passageway;
wherein the tubing spool further comprises a workover passageway which communicates the annulus passageway with a portion of the central bore that is located below the top of the tubing hanger;
and
wherein the tubing hanger further comprises an annulus bore which extends between the workover passageway and the top of the tubing hanger;
whereby fluid communication between the tubing annulus and the top of the tubing hanger may be established through the annulus passageway, the workover passageway and the annulus bore.

5 more elements

A flow completion apparatus for controlling the flow of fluid through a tubing string which extends through a wellhead housing that is installed at an upper end of a well bore and defines a tubing annulus surrounding the tubing string, the flow completion apparatus comprising:

a tubing spool which is positioned over the wellhead housing and which includes a central bore that extends axially therethrough, a production outlet that communicates with the central bore, and an annulus passageway that communicates with the tubing annulus;
a tubing hanger which is supported in the central bore, is connected to an upper end of the tubing string and includes a production bore that extends axially therethrough, a production passageway that communicates between the production bore and the production outlet, a generally cylindrical outer diameter surface, and an upper surface;
wherein the tubing hanger further comprises an annulus bore which extends between the outer diameter surface and the upper surface;
and
wherein the tubing spool further comprises a workover passageway which communicates between the annulus passageway and the annulus bore;
whereby fluid communication between the tubing annulus and the upper surface of the tubing hanger may be established through the annulus passageway, the workover passageway and the annulus bore.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/637,175Filed 8 Aug 2003
Priority: 24 Mar 2000
Published: 3 Jun 2004
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

E21B 33/04
Well heads; Setting-up thereof: casing heads; Suspending casings or tubings in well heads
E21B 33/0353
Specially adapted for underwater installations: horizontal or spool trees, i.e. without production valves in the vertical main bore
E21B 33/043
Casing heads; Suspending casings or tubings in well heads: specially adapted for underwater well heads
E21B 33/064
Blow-out preventers , i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers: specially adapted for underwater well heads

Family

Application60/192,124Us provisional application · filed 24 Mar 2000
Application60/268,329Us provisional application · filed 12 Feb 2001
Application09/815,430Continuation in part · filed 22 Mar 2001
Application10/637,175Continuation in part · filed 8 Aug 2003
US 2002/0000315 A1Published application
US 6,612,368 B2Related patent
US 7,025,132 B2Related patent
US 2004/0104024 A1This patent

From the US filing history. Foreign family members aren’t listed.