# US 2021/0340833 A1 · Blowout preventer

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- Number: US 2021/0340833 A1
- Document ID: US20210340833A1
- Status: Published application
- Kind: A1
- Application number: 17/378,732
- Filed: 2021-07-18
- Published: 2021-11-04
- Earliest claimed: 2015-05-01
- Assignees: Kinetic Pressure Control Ltd.
- Applicants: Kinetic Pressure Control, Ltd.
- Inventors: Steven Anthony Angstmann; Bobby James Gallagher
- Web page: https://patentgrep.com/patent/US20210340833A1

## CPC

- E21B 33/063: {for shearing drill pipes (cutting of wireline E21B29/04)}
- E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS

## Abstract

A blowout preventer and method of operating a wellbore. The blowout preventer has a main body containing a wellbore, a passage transverse to the wellbore, a shearing device located in the passage; and a charge that, when activated, propels the shearing device along the passage and across the wellbore to close the wellbore and prevent a blowout.

## Claims

### Claim 1

A blowout preventer comprising:
a body containing a wellbore;
a passage transverse to the wellbore;
the passage extending along a first side of the wellbore and having a first end, and along a second side of the wellbore and having a second end;
a shearing device located in the passage;
a charge that, when activated, propels the shearing device along the passage and across the wellbore; and
an arresting mechanism disposed in the passage, separated and spaced apart from the first end and the second end of the passage,
wherein the arresting mechanism is configured to absorb energy from the shearing device.

### Claim 2 (depends on 1)

The blowout preventer of claim 1 wherein the arresting mechanism is disposed in the passage proximate the wellbore.

### Claim 3 (depends on 1)

The blowout preventer of claim 1 wherein the arresting mechanism is configured to collapse as it absorbs energy from the shearing device.

### Claim 4 (depends on 1)

The blowout preventer of claim 1 wherein the arresting mechanism is disposed in the passage on the second side of the wellbore.

### Claim 5 (depends on 1)

The blowout preventer of claim 1 wherein the shearing device is disposed in the passage on the first side of the wellbore.

### Claim 6 (depends on 1)

The blowout preventer of claim 1 further comprising a retaining device that retains the shearing device in a predefined position in the passage until activation of the charge occurs.

### Claim 7 (depends on 1)

The blowout preventer of claim 1 further comprising a seal to fluidly seal the passage from the wellbore.

### Claim 8 (depends on 1)

The blowout preventer of claim 1 wherein the shearing device is configured to sever anything present in the wellbore when the shearing device is propelled across the wellbore.

### Claim 9 (depends on 1)

The blowout preventer of claim 1 wherein the shearing device has a body section that substantially blocks the wellbore when the shearing device is propelled across the wellbore.

### Claim 10 (depends on 1)

The blowout preventer of claim 1 further comprising a fluid disposed in a portion of the passage.

### Claim 11

A method of operating a blowout preventer having a body with a wellbore traversing therein, comprising:
activating a charge linked to a passage transverse to the wellbore, the passage extending along a first side of the wellbore and having a first end, and along a second side of the wellbore and having a second end,
wherein the activated charge propels a shearing device along the passage and across the wellbore; and
absorbing energy from the propelled shearing device with an arresting mechanism disposed in the passage, the arresting mechanism being separated and spaced apart from the first end and the second end of the passage.

### Claim 12 (depends on 11)

The method of claim 11 wherein the arresting mechanism is disposed in the passage proximate the wellbore.

### Claim 13 (depends on 11)

The method of claim 11 wherein the arresting mechanism is configured to collapse as it absorbs energy from the shearing device.

### Claim 14 (depends on 11)

The method of claim 11 wherein the arresting mechanism is disposed in the passage on the second side of the wellbore.

### Claim 15 (depends on 11)

The method of claim 11 wherein the shearing device is disposed in the passage on the first side of the wellbore.

### Claim 16 (depends on 11)

The method of claim 11 further comprising retaining the shearing device in a predefined position in the passage until activation of the charge occurs.

### Claim 17 (depends on 11)

The method of claim 11 further comprising fluidly sealing the passage from the wellbore.

### Claim 18 (depends on 11)

The method of claim 11 wherein the shearing device is configured to sever anything present in the wellbore when the shearing device is propelled across the wellbore.

### Claim 19 (depends on 11)

The method of claim 11 further comprising blocking the wellbore with the shearing device when the shearing device is propelled across the wellbore.

### Claim 20 (depends on 11)

The method of claim 11 further comprising disposing a fluid in a portion of the passage.