Actuation trigger

Patent metadata

Field	Value
Publication number	US-11352845-B2
Application number	US-201916360255-A
Country	US
Kind code	B2
Filing date	Mar 21, 2019
Priority date	Mar 21, 2018
Publication date	Jun 7, 2022
Grant date	Jun 7, 2022

Abstract

An actuation trigger including a housing; a piston in operable communication with the housing; a pressure source inlet to the trigger the piston being responsive to source pressure cycles; a first one-direction axial incrementing feature movable with piston movement; a rod movable with the piston and positionally restricted by the one-direction axial incrementing feature, the rod initially being part of a dynamic seal preventing actuation pressure access to a tool actuatable by the actuation pressure.

First claim

What is claimed is:

1. An actuation trigger comprising:
a housing;
a piston in operable communication with the housing;
a pressure source inlet to the trigger the piston being responsive to source pressure cycles;
and
a rod incrementally movable with the piston and movable relative to the housing in only one direction, the rod initially being part of a dynamic seal preventing actuation pressure access to a tool actuatable by the actuation pressure and wherein the actuation pressure is the source pressure.

2. The trigger as claimed in claim 1 further including a first push nut positioned to slide on the rod in one direction and jam in the opposite direction.

3. The trigger as claimed in claim 2 further including a second push nut positioned to slide on the rod in one direction and jam in the opposite direction.

4. The trigger as claimed in claim 3 wherein the first push nut and second push nut are disposed in the same direction as each other such that the rod is movable in only one direction relative to both of the first push nut and the second push nut.

5. The trigger as claimed in claim 3 wherein the second push nut is attached to a connector attached to the housing and dynamically sealed to the rod.

6. The trigger as claimed in claim 3 wherein the second push nut includes a collet.

7. The trigger as claimed in claim 1 wherein the rod is pressure balanced.

8. The trigger as claimed in claim 1 further including a biasing member in operable contact with the piston.

9. The trigger as claimed in claim 1 wherein the pressure source inlet is through a pressure inlet sub.

10. The trigger as claimed in claim 9 wherein the dynamic seal is in the pressure inlet sub.

11. The trigger as claimed in claim 1 wherein the dynamic seal is in a connector attached to the housing.

12. The trigger as claimed in claim 1 wherein the rod is hollow.

13. The trigger as claimed in claim 1 wherein the rod is solid.

14. The trigger as claimed in claim 1 wherein the housing is configured to directly access tubing pressure of a tubular member adjacent the trigger.

15. The trigger as claimed in claim 1 wherein the pressure source inlet is connected to tubing pressure in a tubular within a wellbore.

16. The trigger as claimed in claim 1 wherein the pressure source inlet is connected to annulus pressure around a tubular within a wellbore.

17. The trigger as claimed in claim 1 wherein the pressure source inlet is connected to a dedicated pressure source.

18. The trigger as claimed in claim 1 wherein the first push nut includes a collet.

19. The trigger as claimed in claim 1 wherein the trigger increments with an increase pressure phase of a pressure cycle.

20. The trigger as claimed in claim 1 wherein the trigger increments with a decrease pressure phase of a pressure cycle.

21. A borehole system comprising:
a borehole disposed in a subsurface formation;
a string disposed in the borehole;
a trigger as claimed in claim 1 in operative contact with the string.

Assignees

• Obrien Robert
• Hammer Aaron
• Woudwijk Roy
• Baker Hughes A Ge Co Llc

Inventors

• O'Brien Robert
• Hammer Aaron
• Woudwijk Roy

Classifications

• E21B23/00 Primary

  Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells (setting of casings, screens or liners E21B43/10) · CPC title

• E21B41/00 Primary

  Equipment or details not covered by groups E21B15/00 - E21B40/00 · 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

• E21B34/063

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

• E21B23/04

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