Browse Prior Art Database

Setting Tool Adapter Kit with Circulating Valve and Pressure Barrier

IP.com Disclosure Number: IPCOM000241639D
Publication Date: 2015-May-19
Document File: 1 page(s) / 22K

Publishing Venue

The IP.com Prior Art Database

Abstract

This is a standard Setting Tool Adapter Kit with two key improvements, which could be implemented on any system. The drawing does not show a latch, top sub, or rotational lock. 1) Circulating Valve - The Mandrel (yellow) is not fixed to the locator sub (green). It can stroke upward a few inches. When run in the hole, it cannot open, because the Latch and Locator are fixed in the packer. After the latch is released, the mandrel can stroke upward with slight overpull, opening a flow path between the tubing, annulus, and area below the primary ball. This can be scaled down to 2.6" bore packers. It also eliminates shear screws from the ball seat, which is a common cause of failure. 2) Pressure Barrier - The Ball Seat (Red) shifts down to form a pressure barrier. It isolates flow ports in the Seal Sub or Bottom Sub at the bottom of the Adapter Kit. A primary ball is no longer needed in most scenarios. When there is a closed system below the ball, applied tubing pressure will shift the ball seat down, which prevents additional pressure from communicating downward. Pressure can then be applied to set the packer and release a tubing-release mechanism. If there is an open system, or the assembly is run with no molded seal, then pump rate can be used to shift the Ball Seat and set the packer. In addition, if a primary ball is dropped, the Pressure Barrier will provide a second layer of protection for downhole equipment, in case the primary ball leaks. A shear screw or set screw can be added to the ball seat for applications where flow rate actuation is not desired. Essentially, it's run like a standard Adapter Kit, but there is usually no need to drop a primary ball. In addition to ball drop, it allows the packer to be *safely* set against a closed system or by using pump rate to close the ports in the Bottom Sub (green). Pressure differential between the tubing and annulus stroke the Ball Seat (red) down. This seals the ports in the Seal Sub (blue), allowing packing setting pressure to be applied. Pressure does not communicate down to equipment lower in the system. If a closed system is not present, the Pressure Barrier can be stroked closed by either pump rate or a primary ball drop. After releasing the latch from the packer, the Mandrel (yellow) is stroked up relative to the Locator Sub (green) and the slots in the Mandrel come past the Ball Seat, allowing three-way communication between tubing, annulus, and below the Adapter Kit. This allows the Adapter Kit to be pulled out of the packer, allows the tubing to drain, and allows reversing a backup ball if necessary.

This text was extracted from a Microsoft Word document.
This is the abbreviated version, containing approximately 56% of the total text.

Setting Tool Adapter Kit with Circulating Valve and Pressure Barrier

This is a standard Setting Tool Adapter Kit with two key improvements, which could be implemented on any system.   The drawing does not show a latch, top sub, or rotational lock.

1) Circulating Valve - The Mandrel (yellow) is not fixed to the locator sub (green). It can stroke upward a few inches. When run in the hole, it cannot open, because the Latch and Locator are fixed in the packer. After the latch is released, the mandrel can stroke upward with slight overpull, opening a flow path between the tubing, annulus, and area below the primary ball. This can be scaled down to 2.6" bore packers. It also eliminates shear screws from the ball seat, which is a common cause of failure.

2) Pressure Barrier - The Ball Seat (Red) shifts down to form a pressure barrier. It isolates flow ports in the Seal Sub or Bottom Sub at the bottom of the Adapter Kit. A primary ball is no longer needed in most scenarios. When there is a closed system below the ball, applied tubing pressure will shift the ball seat down, which prevents additional pressure from communicating downward. Pressure can then be applied to set the packer and release a tubing-release mechanism. If there is an open system, or the assembly is run with no molded seal, then pump rate can be used to shift the Ball Seat and set the packer. In addition, if a primary ball is dropped, the Pressure Barrier will provide a second layer of protection for downhole equ...