# US 2014/0196891 A1 · Self-contained gas impulse creation

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- Number: US 2014/0196891 A1
- Document ID: US20140196891A1
- Status: Published application
- Kind: A1
- Application number: 13/742,368
- Filed: 2013-01-16
- Published: 2014-07-17
- Earliest claimed: 2013-01-16
- Assignees: Flow Industries, Inc.
- Applicants: Flow Industries, Ltd.
- Inventors: Yuri ASS; Gennadi Kabishcher
- Web page: https://patentgrep.com/patent/US20140196891A1

## CPC

- E21B 43/25: Methods for stimulating production {(by vibrating earth formations E21B43/003)}
- E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS

## Abstract

A self-contained gas impulse apparatus includes a gas impulse unit for generating a plurality of gas blasts when supplied with pressurized gas. A gas supply unit is connected by a gas conduit to the gas impulse unit. The gas supply unit is configured to be remotely activated to supply pressurized gas via the conduit to the gas impulse unit. The self-contained gas impulse apparatus is transportable by a cable to and from a remote location for operation at the remote location.

## Claims

### Claim 1

A self-contained gas impulse apparatus comprising:
a gas impulse unit for generating a plurality of gas blasts when supplied with pressurized gas; and
a gas supply unit connected by a gas conduit to the gas impulse unit, the gas supply unit being configured to be remotely activated to supply pressurized gas via the conduit to the gas impulse unit,
wherein the self-contained gas impulse apparatus is transportable by a cable to and from a remote location for operation at the remote location.

### Claim 2 (depends on 1)

The apparatus of claim 1, wherein the apparatus is connected to the cable.

### Claim 3 (depends on 2)

The apparatus of claim 2, wherein the cable includes a wireline or a slickline.

### Claim 4 (depends on 1)

The apparatus of claim 1, wherein the gas supply unit comprises a compressed gas storage unit that is fillable with a compressed gas.

### Claim 5 (depends on 4)

The apparatus of claim 4, wherein the compressed gas storage unit includes a barrier to initially prevent flow of the compressed gas from the compressed gas storage unit to the gas impulse unit and an activation device for opening the barrier.

### Claim 6 (depends on 5)

The apparatus of claim 5, wherein the activation device comprises a squib.

### Claim 7 (depends on 5)

The apparatus of claim 5, wherein the barrier comprises a piston or a sealing disk.

### Claim 8 (depends on 1)

The apparatus of claim 1, wherein the gas supply unit comprises a gas generator unit that is fillable with a gas generation material.

### Claim 9 (depends on 8)

The apparatus of claim 8, wherein the gas generator unit is activable by initiation of a gas-generating reaction in the gas generation material.

### Claim 10 (depends on 9)

The apparatus of claim 9, wherein the gas generation material includes a solid propellant.

### Claim 11 (depends on 9)

The apparatus of claim 9, comprising an igniter for initiating the reaction.

### Claim 12 (depends on 8)

The apparatus of claim 8, wherein the gas generation material comprises a liquefied gas.

### Claim 13 (depends on 1)

The apparatus of claim 1, wherein the gas supply unit is configured to hang below the gas impulse unit when being transported to or from the remote location.

### Claim 14 (depends on 1)

The apparatus of claim 1, wherein the apparatus is configured to be lowered to the remote location at a depth of at least 50 meters within a well.

### Claim 15 (depends on 1)

The apparatus of claim 1, wherein the gas supply unit is configured to be remotely activated via an electrically conducting wire.

### Claim 16

A method for generating gas impulses at a remote location, the method comprising:
providing a self-contained gas impulse apparatus that includes a gas impulse unit and a gas supply unit that is connected to the gas impulse unit by a gas conduit;
using a cable to transport the apparatus to the remote location; and
activating the gas supply unit to supply pressurized gas to the gas impulse unit such that the gas impulse unit generates a plurality of gas blasts.

### Claim 17 (depends on 16)

The method of claim 16, wherein using a cable to transport the apparatus comprises lowering the apparatus into a well to a depth of at least 50 meters.

### Claim 18 (depends on 16)

The method of claim 16, wherein remotely activating the gas supply unit comprises transmitting an activation signal to the apparatus.

### Claim 19 (depends on 16)

The method of claim 16, wherein remotely activating the gas supply unit comprises setting a delay mechanism.

### Claim 20 (depends on 16)

The method of claim 16, wherein remotely activating the gas supply unit comprises opening a barrier that initially prevents flow of the pressurized gas from the gas supply unit to the gas impulse unit, or initiating a process that generates the pressurized gas within the gas supply unit.