Landing collar, downhole system having landing collar, and method

Patent metadata

Field	Value
Publication number	US-9719322-B2
Application number	US-201414329159-A
Country	US
Kind code	B2
Filing date	Jul 11, 2014
Priority date	Jul 11, 2014
Publication date	Aug 1, 2017
Grant date	Aug 1, 2017

Abstract

A landing collar includes a tubular body having a longitudinally extending main flow path; and, a shearable liner wiper plug landing seat installed within the body and configured to receive a liner wiper plug in an unsheared condition of the landing seat. The landing seat movable in a downhole direction within the body in a sheared condition of the landing seat. The landing seat including at least one radial fluid communication passageway through a wall of the landing seat; wherein, in the sheared condition of the landing seat. The fluid communication passageway of the landing seat is in fluid communication with a fluid communication path between the tubular body and the landing seat. A method of completing a cemented liner with a wet shoe.

First claim

What is claimed:

1. A landing collar comprising:
a tubular body having a longitudinally extending main flow path; and,
a shearable liner wiper plug landing seat installed within the body and configured to receive a liner wiper plug in an unsheared condition of the landing seat, the landing seat movable in a downhole direction within the body in a sheared condition of the landing seat, the landing seat including at least one radial fluid communication passageway through a wall of the landing seat;
wherein, in the sheared condition of the landing seat, the fluid communication passageway of the landing seat is in fluid communication with a fluid communication path between the tubular body and the landing seat.

2. The landing collar of claim 1 , wherein the body includes a flow channel section having a flow channel pattern radially indented into the body, the flow channel pattern forming the fluid communication path.

3. The landing collar of claim 2 , wherein the flow channel pattern includes at least one flow channel extending from an uphole to a downhole end of the flow channel section.

4. The landing collar of claim 3 , wherein the flow channel pattern further includes a ring-shaped portion circumscribed within the body downhole and fluidly connected to the at least one flow channel.

5. The landing collar of claim 2 , wherein a longitudinal length of the flow channel section is longer than a longitudinal length of the landing seat.

6. The landing collar of claim 2 , wherein the flow channel section is downhole of the landing seat in the unsheared condition of the landing seat, and the landing seat is within the flow channel section in the sheared condition of the landing seat.

7. The landing collar of claim 1 , wherein the fluid communication passageway of the landing seat includes at least one notch at a downhole end of the landing seat.

8. The landing collar of claim 7 , wherein the fluid communication path includes a ring-shaped portion circumscribed within the body, the at least one notch aligned with the ring-shaped portion in the sheared condition of the landing seat.

9. The landing collar of claim 1 , wherein the main flow path of the tubular body from uphole of the landing seat to downhole of the landing seat in the unsheared condition of the landing seat is blocked when the landing seat is in receipt of the liner wiper plug, and the sheared condition of the landing seat fluidically connects the flow path uphole of the landing seat to the fluid communication path between the landing seat and the tubular body.

10. The landing collar of claim 9 , wherein the flowpath downhole of the landing seat is fluidically connected to the fluid communication passageway when the landing seat is in the sheared condition.

11. The landing collar of claim 1 , further comprising a ball seat assembly having a shearable ball seat installed within the body downhole of the landing seat.

12. The landing collar of claim 11 , further comprising a baffle secured within the tubular body, the baffle having a plurality of longitudinal apertures configured to allow fluid communication between uphole and downhole sides of the baffle, the ball seat assembly interposed between the baffle and the landing seat.

13. The landing collar of claim 11 , wherein the ball seat assembly further includes a ball seat insert installed within the body and receiving the shearable ball seat therein, the landing seat prohibited from further downhole movement by the ball seat insert in the sheared condition of the landing seat.

14. The landing collar of claim 1 , wherein an interior surface of the landing seat includes a frustoconical portion and a plurality of ring-shaped grooves to receive the liner wiper plug therein.

15. A downhole system including the landing collar of claim 1 , the downhole system further including:
a liner hanger connected uphole of the landing collar; and,
a float collar connected downhole of the landing collar.

16. The downhole system of claim 15 further comprising the liner wiper plug and a pump down plug latched within the liner wiper plug.

17. A method of completing a cemented liner with a wet shoe using the landing collar of claim 1 , the method comprising:
landing the liner wiper plug in the shearable liner wiper plug landing seat in the body of the landing collar;
increasing pressure within the landing collar to shear the landing seat; and,
establishing fluid communication from uphole the landing seat to downhole the landing seat via the fluid communication path between the landing seat and the body and the fluid communication passageway in the wall of the landing seat.

18. A method of completing a cemented liner with a wet shoe, the method comprising:
landing a liner wiper plug in a shearable liner wiper plug landing seat in a body of a landing collar;
increasing pressure within the landing collar to shear the landing seat; and,
after landing the liner wiper plug in the landing seat and shearing the landing seat with the liner wiper plug seated therein, establishing fluid communication from uphole the landing seat to downhole the landing seat via a fluid communication path between the landing seat and the body.

19. The method of claim 18 , further comprising pumping completion fluid through the landing collar via the fluid communication path to displace cement from a shoe track.

20. The method of claim 18 , further comprising pumping cement through the landing collar prior to landing the liner wiper plug.

21. The method of claim 20 , further comprising, prior to pumping cement, dropping a setting ball through the landing seat and onto a ball seat within the landing collar, applying pressure within a string containing the landing collar, setting a liner hanger hydraulically, and applying additional pressure within the string to shear the ball seat and regain circulation through the string.

22. A landing collar comprising:
a tubular body having a longitudinally extending main flow path;
a ball seat assembly having a shearable ball seat installed within the body; and,
a shearable liner wiper plug landing seat installed within the body uphole of the ball seat assembly, the landing seat configured to receive a liner wiper plug and block fluid communication through the main flow path from uphole the landing seat to downhole the landing seat when the liner wiper plug is seated therein in an unsheared condition of the landing seat, the landing seat movable in a downhole direction within the body in a sheared condition of the landing seat;
wherein, in the sheared condition of the landing seat with the liner wiper plug seated therein, fluid communication from uphole the landing seat to downhole the landing seat is enabled using a fluid communication path between the landing seat and the body.

Assignees

• Baker Hughes Inc

Inventors

• Goebel Kevin M

Classifications

• E21B33/16 Primary

  using plugs for isolating cement charge; Plugs therefor {(stage cementing E21B33/146; spacer compositions C09K8/424)} · CPC title

• E21B23/04

  operated by fluid means, e.g. actuated by explosion (E21B23/08 takes precedence) · CPC title

• E21B43/10

  Setting of casings, screens, liners {or the like} in wells · CPC title

• E21B23/0411

  specially adapted for anchoring tools or the like to the borehole wall or to well tube · CPC title