On-demand hydrostatic/hydraulic trigger system

Patent metadata

Field	Value
Publication number	US-11414943-B2
Application number	US-202016829068-A
Country	US
Kind code	B2
Filing date	Mar 25, 2020
Priority date	Mar 25, 2020
Publication date	Aug 16, 2022
Grant date	Aug 16, 2022

Abstract

A downhole component including a member having an outer surface, a constrained element configured to move relative to the member between a first position and a second position, and an on-demand hydrostatic/hydraulic trigger system including a constraining element operable to selectively release the constrained element. The on-demand hydrostatic/hydraulic trigger system includes a piston cylinder.

First claim

What is claimed is:

1. A downhole component comprising:
a member including an outer surface;
a constrained element configured to move relative to the member between a first position and a second position; and
an on-demand hydrostatic/hydraulic trigger system including
a piston cylinder;
a constraining element operable to selectively release the constrained element, the constraining element including a piston arranged in the piston cylinder;
a trigger passage extending through the outer surface of the member into the piston cylinder; and
a cap arranged in the piston cylinder radially outwardly of and spaced from the piston by a gap, the trigger passage extending along the cap, the gap defining an atmospheric chamber in the downhole component.

2. The downhole component according to claim 1 , wherein the piston includes a first piston portion extending into the piston cylinder and a second piston portion defining the constraining element that selectively prevents movement of the constrained element.

3. The downhole component according to claim 2 , wherein the on-demand hydrostatic/hydraulic trigger system includes another chamber arranged in the piston cylinder at the second piston portion.

4. The downhole component according to claim 3 , wherein the cap includes a recess that defines the another chamber.

5. The downhole component according to claim 4 , wherein the on-demand hydrostatic/hydraulic trigger system includes a frangible element extending from the recess into the piston.

6. The downhole component according to claim 1 , wherein the trigger passage extends through the cap.

7. The downhole component according to claim 1 , wherein the on-demand hydrostatic/hydraulic trigger system includes a channel extending through the outer surface into the piston cylinder and a frangible element arranged in the channel, the frangible element abutting the piston.

8. The downhole component according to claim 1 , wherein the trigger passage extends through the cap.

9. The downhole component according to claim 8 , further comprising: a burst disc arranged in the trigger passage, the burst disc selectively fluidically isolating the piston cylinder from pressure external to the member.

10. The downhole component according to claim 9 , wherein the bust disc is arranged in the cap.

Assignees

• Nguyen Tuan
• Hern Gregory
• Woodruff Alexander
• Yates Chad
• Shaikh Farhat
• Baker Hughes Oilfield Operations Llc

Inventors

• Nguyen Tuan
• Hern Gregory
• Woodruff Alexander
• Yates Chad
• Shaikh Farhat

Classifications

• E21B34/063 Primary

  Valve or closure with destructible element, e.g. frangible disc (E21B34/103 takes precedence) · CPC title

• E21B23/08 Primary

  Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems · CPC title

• E21B2200/06

  Sleeve valves · CPC title

• E21B34/102

  with means for locking the closing element in open or closed position (E21B34/105 and E21B34/108 take precedence) · CPC title

• E21B34/14

  operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools {(E21B34/066 takes precedence)} · CPC title