# US 10,480,279 B2 · Method of sealing a well

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- Number: US 10,480,279 B2
- Document ID: US10480279B2
- Status: Granted
- Kind: B2
- Application number: 16/231,798
- Filed: 2018-12-24
- Published: 2019-06-13
- Granted: 2019-11-19
- Earliest claimed: 2013-09-25
- Assignees: Statoil Petroleum AS
- Applicants: Statoil Petroleum AS
- Inventors: Pål Viggo Hemmingsen; Gjermund Grimsbo; Alastair Buchanan
- Web page: https://patentgrep.com/patent/US10480279B2

## CPC

- E21B 33/13: Methods or devices for cementing, for plugging holes, crevices or the like
- E21B 17/00: Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; {Cables;} Casings; Tubings
- E21B 33/134: Bridging plugs
- E21B 34/06: in wells
- E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS

## Abstract

A method of sealing a well comprises creating one or more openings in a tubing installed in a wellbore, in a location for a well seal; using a wireline to locate a stinger in that location; setting the stinger in that location; and forming a seal in the well in that location, by injecting sealant through said stinger.

## Claims

### Claim 1

A method of sealing a well comprising:
creating one or more openings in a tubing installed in a wellbore in a location for a well seal;
using a wireline to locate a stinger in said location;
setting the stinger in said location by hanging the stinger from said tubing using a wireline attachment tool;
removing the wireline and the wireline attachment tool from the wellbore; and
after said step of removing, forming a seal in the well in said location by injecting sealant through said stinger such that the sealant flows upwardly around the stinger.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the stinger is extendable.

### Claim 3 (depends on 2)

The method according to claim 2, wherein the stinger is telescopic.

### Claim 4 (depends on 3)

The method according to claim 3, wherein the stinger comprises a plurality of telescopic sections that are held in a compacted configuration by a release mechanism configured to release when a pre-determined pressure is applied, thus causing the telescopic sections to extend.

### Claim 5 (depends on 4)

The method according to claim 4, wherein the stinger further comprises a valve across an end of the stinger which is lowermost when the stinger is extended.

### Claim 6 (depends on 5)

The method according to claim 5, wherein the valve is configured to adopt a closed position when fluid is pumped down into the stinger to apply the predetermined pressure to the release mechanism to open each telescopic section.

### Claim 7 (depends on 6)

The method according to claim 6, wherein, once the stinger is expanded, a pressure greater than the predetermined pressure is applied in order to open the valve for pumping the sealant out of the end of the stinger.

### Claim 8 (depends on 1)

The method according to claim 1, wherein the one or more openings is formed by removing a section of the tubing.

### Claim 9 (depends on 1)

The method according to claim 1, wherein the one or more openings is formed by slicing or perforating a section of the tubing.

### Claim 10 (depends on 1)

The method according to claim 1, further comprising the use of a high viscous pill deployed through the stinger to clean the location before forming the seal.

### Claim 11 (depends on 1)

The method according to claim 1, wherein the step of forming the seal comprises forming a permanent plug in the well.

### Claim 12 (depends on 1)

The method according to claim 1, further comprising providing a transverse support ledge in the tubing below the one or more openings so as to ensure that the sealant is retained within the location for the seal.