Annular isolation device for managed pressure drilling

Patent metadata

Field	Value
Publication number	US-10012044-B2
Application number	US-201514943972-A
Country	US
Kind code	B2
Filing date	Nov 17, 2015
Priority date	Nov 18, 2014
Publication date	Jul 3, 2018
Grant date	Jul 3, 2018

Abstract

An annular isolation device for managed pressure drilling includes a first housing portion coupled to a second housing portion; a packing element at least partially disposed in the first housing portion; a penetrator coupled to the first housing portion; and a carrier coupled to the second housing portion, wherein the carrier is configured to receive a portion of the penetrator.

First claim

The invention claimed is:

1. An annular isolation device for managed pressure drilling, comprising:
a first housing portion having a bowl;
a second housing portion;
a packing element at least partially disposed in the bowl of the first housing portion;
a penetrator coupled to the first housing portion; and
a carrier coupled to the second housing portion, wherein coupling the first housing portion to the second housing portion stabs the penetrator into the carrier, and separating the first housing portion from the second housing portion separates the penetrator and the carrier, and the penetrator and the carrier are configured to provide fluid communication between a first fluid communication line and a second fluid communication line.

2. The device of claim 1 , wherein the first housing portion is removable from the second housing portion and the penetrator is removable from the carrier.

3. The device of claim 1 , wherein the penetrator is coupled to the first fluid communication line using a threaded nut and a wedge sleeve.

4. The device of claim 1 , further including a piston configured to actuate the packing element.

5. The device of claim 1 , further including a plurality of pistons configured to actuate the packing element.

6. An annular isolation device for managed pressure drilling, comprising:
a first housing portion;
a second housing portion;
a packing element at least partially disposed in the first housing portion;
a penetrator coupled to the first housing portion; and
a carrier coupled to the second housing portion, wherein coupling the first housing portion to the second housing portion stabs the penetrator into the carrier, and separating the first housing portion from the second housing portion separates the penetrator and the carrier, wherein the first housing portion is an upper housing and the second housing portion is a lower housing.

7. The device of claim 6 , wherein the first housing portion has a plurality of sockets forming through a flange of the first housing portion, and the penetrator is coupled to the first housing portion through one of the plurality of sockets.

8. The device of claim 7 , wherein the plurality of sockets are radially staggered in an alternating fashion along the flange.

9. An annular isolation device for managed pressure drilling, comprising:
a first housing portion coupled to a second housing portion;
a packing element at least partially disposed in the first housing portion;
a penetrator coupled to the first housing portion, wherein the penetrator is coupled to a fluid communication line using a threaded nut and a wedge sleeve; and
a carrier coupled to the second housing portion, wherein the carrier is configured to receive a portion of the penetrator, the fluid communication line includes an enlarged diameter portion having a flat lower shoulder and a sloped upper shoulder, the wedge sleeve engages the sloped upper shoulder, and the flat lower shoulder engages a corresponding shoulder formed on an inner surface of the penetrator.

10. A method of disassembling an annular isolation device (AID) for managed pressure drilling, comprising:
landing the AID in a spider, wherein the AID includes:
a first housing portion coupled to a second housing portion,
a penetrator coupled to the first housing portion, wherein the penetrator is coupled to a first fluid communication line, and
a carrier coupled to the second housing portion, wherein the carrier is coupled to a second fluid communication line, and the penetrator and the carrier are configured to provide fluid communication between the first fluid communication line and the second fluid communication line;

separating the first housing portion and the second housing portion, thereby separating the penetrator and the carrier; and
removing an annular packing element from the AID.

11. The method of claim 10 , further comprising:
coupling the first housing portion and the second housing portion; and
guiding the penetrator into the carrier.

12. The method of claim 10 , further comprising separating the penetrator and the first fluid communication line by unthreading a nut disposed around the first fluid communication line and removing a wedge sleeve disposed between the penetrator and the first fluid communication line.

13. The method of claim 10 , wherein the AID further includes a bleed line junction comprising:
a pin connection coupled to the upper housing portion;
a bleed line penetrator coupled to the upper housing portion; and
an adapter disposed between the pin connector and the bleed line penetrator and movable therebetween, wherein the adaptor sealingly engages both the pin connector and the bleed line penetrator.

14. The method of claim 13 , further comprising:
moving the adapter towards the bleed line penetrator, thereby removing the adapter from the pin connector;
removing the pin connector from the AID; and
removing the adapter from the AID.

15. A riser assembly for managed pressure drilling, comprising:
an annular isolation device (AID), wherein the AID includes:
a first housing portion coupled to a second housing portion,
a penetrator coupled to the first housing portion, and
a carrier coupled to the second housing portion, wherein coupling the first housing portion to the second housing portion stabs the penetrator into the carrier, and separating the first housing portion from the second housing portion separates the penetrator and the carrier;

a rotating control device coupled to the AID;
a first fluid communication line having a first end coupled to the penetrator; and
a second fluid communication line having a first end coupled to the carrier, wherein the penetrator and the carrier are configured to provide fluid communication between the first fluid communication line and the second fluid communication line.

16. The assembly of claim 15 , wherein the first fluid communication line includes a second end coupled to an upper flange and the second fluid communication line includes a second end coupled to a lower flange.

17. The assembly of claim 15 , wherein the first housing portion is removable from the second housing portion and the penetrator is removable from the carrier.

18. The assembly of claim 15 , wherein the AID includes a packing element configured to block fluid flow in a bore of the AID.

19. An annular isolation device for managed pressure drilling, comprising:
a first housing portion having a bowl;
a second housing portion;
a packing element at least partially disposed in the bowl of the first housing portion;
a penetrator coupled to the first housing portion; and
a carrier coupled to the second housing portion, wherein coupling the first housing portion to the second housing portion stabs the penetrator into the carrier, separating the first housing portion from the second housing portion separates the penetrator and the carrier, and the first housing portion has a plurality of sockets forming through a first flange of the first housing portion, and the penetrator is coupled to the first housing portion through one of the plurality of sockets.

20. The device of claim 19 , wherein the plurality of sockets are radially staggered in an alternating fashion along the first flange.

21. The device of claim 19 , wherein the second housing portion has a plurality of holes and one or more scallops forming on a second flange, and the plurality of holes and the scallops correspond to the plurality of sockets of the first housing po

Assignees

• Weatherford Tech Holding Llc
• Weatherford Tech Holdings Llc

Inventors

• Leba John Vinh
• Reyna Mario M
• Thomson Gordon
• Nguyen Chau
• Leal Jerlib J
• Dillard Walter Scott

Classifications

• E21B33/085

  Rotatable packing means, e.g. rotating blow-out preventers · CPC title

• E21B33/06 Primary

  Blow-out preventers {, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers (rotating blow-out preventers E21B33/085)} · CPC title

• E21B21/08 Primary

  Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure (valve arrangements therefor E21B21/10) · CPC title

• E21B17/085

  Riser connections (connectors for wellhead E21B33/038) · CPC title

• E21B17/0853

  Connections between sections of riser provided with auxiliary lines, e.g. kill and choke lines · CPC title