# US 10,308,867 B2 · Fluid composition and method for stimulation in the field of oil and gas production

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- Number: US 10,308,867 B2
- Document ID: US10308867B2
- Status: Granted
- Kind: B2
- Application number: 14/983,879
- Filed: 2015-12-30
- Published: 2016-06-30
- Granted: 2019-06-04
- Earliest claimed: 2014-12-31
- Assignees: Arkema France
- Applicants: Arkema France
- Inventors: Gilles Barreto
- Web page: https://patentgrep.com/patent/US10308867B2

## CPC

- C09K 8/80: Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open
- C09K 8/605: {containing biocides}
- C09K 8/64: Oil-based compositions
- C09K 8/805: {Coated proppants}
- E21B 43/26: by forming crevices or fractures
- C09K 2208/32: Anticorrosion additives
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS

## Abstract

A fracturing carrier fluid for fracturing a subterranean formation contains at least one linear or branched hydrofluorocarbon ether compound having a boiling point, at a pressure of 1 atmosphere, of between 0° C. and 90° C. A fracturing fluid contains the fracturing carrier fluid and proppants. A method for fracturing a subterranean formation uses the fracturing fluid.

## Claims

### Claim 1

A fracturing fluid suitable for fracturing a subterranean formation, comprising:
(a) at least one linear or branched hydrofluorocarbon ether compound having 2, 3, or 4 carbon atoms and having a boiling point, at a pressure of 1 atmosphere (101325 Pa), of between 0° C. and 90° C., and
(b) at least one proppant,
wherein the composition does not contain added carbon dioxide.

### Claim 2 (depends on 1)

The fracturing carrier fluid according to claim 1, which has a critical temperature equal to or greater than 110° C. and equal to or lower than 200° C.

### Claim 3 (depends on 1)

The fracturing carrier fluid according to claim 1, wherein the at least one linear or branched hydrofluorocarbon ether compound is represented by formula (1):
CnHmFpXqOt (1)
wherein n, m, p, q and t respectively represent the number of carbon atoms, hydrogen atoms, fluorine atoms, X atoms and O atoms forming ether function(s),
wherein n represents 2 or 3 or 4, m≥0, 9≥p≥3, q represents 0 or 1, t represents 1 or 2, and
X represents an halogen atom different from fluorine.

### Claim 4 (depends on 3)

The fracturing carrier fluid according to claim 3, wherein n is 2 or 3, 2≤m≤4, 4≤p≤6, q represents 0 or 1, and t represents 1.

### Claim 5 (depends on 3)

The fracturing carrier fluid according to claim 3, wherein the compound represented by formula (1) has a Normal Boiling Point (NBP) of between 5° C. and 85° C.

### Claim 6 (depends on 3)

The fracturing carrier fluid according to claim 3, wherein the compound represented by formula (1) has a Normal Boiling Point (NBP) of between 10° C. and 80° C.

### Claim 7 (depends on 1)

The fracturing carrier fluid according to claim 1, wherein the at least one hydrofluorocarbon ether compound is chosen from RE-134, RE-236fa1, RE-236ea1, RE-245cb1, RE-338mcf2, RE-245fa1, RE-347mmy1, RE-254cb1, RE-245ca2, RE-235da1, RE-365mcf2, CHF2—CHF—O—CHF2, CHF2—CH2—O—CF3, CH2F—CHF—O—CF3, CH3—CF2—O—CF3, CF3—CHF—O—CH2F, CHF2—CF2—O—CH2F, isomers thereof, and mixtures thereof.

### Claim 8 (depends on 1)

The fracturing carrier fluid according to claim 1, further comprising one or more additives chosen from biocides, corrosion inhibitors, surfactants, scale inhibitors, anti-foaming agents, rheology modifiers, and mixtures thereof.

### Claim 9 (depends on 1)

The fracturing carrier fluid according to claim 1, which contains no added water.

### Claim 10 (depends on 1)

The fracturing carrier fluid according to claim 1, wherein the hydrofluorocarbon ether compound has one ether function.

### Claim 11 (depends on 1)

The fracturing carrier fluid according to claim 1, which has a critical pressure (Pcritical) lower than 7 MPa.

### Claim 12 (depends on 1)

The fracturing carrier fluid according to claim 1, which has a critical pressure (Pcritical) lower than 5 MPa.

### Claim 13 (depends on 1)

The fracturing carrier fluid according to claim 1, wherein the proppant is a granular material.

### Claim 14 (depends on 1)

The fracturing carrier fluid according to claim 1, wherein the proppant is selected from the group consisting of sand, resin-coated sand, intermediate-strength proppant ceramics, and high-strength proppants.

### Claim 15 (depends on 1)

The fracturing carrier fluid according to claim 1, which comprises at least one high-strength proppant selected from the group consisting of sintered bauxite, zirconium oxide, plastic pellets, steel shot, glass beads, high strength glass beads, aluminum pellets, and rounded-nut shells.

### Claim 16 (depends on 1)

The fracturing carrier fluid according to claim 1, wherein the proppant is from US mesh 12 to US mesh 100.

### Claim 17 (depends on 1)

The fracturing carrier fluid according to claim 1, wherein the proppant is from US mesh 20 to US mesh 100.

### Claim 18 (depends on 1)

The fracturing carrier fluid according to claim 1, wherein the concentration of the proppant between 20 grams per liter of the fracturing carrier fluid and 600 grams per liter of the fracturing carrier fluid.

### Claim 19 (depends on 1)

The fracturing carrier fluid according to claim 1, wherein the concentration of the proppant between 25 grams per liter of the fracturing carrier fluid and 250 grams per liter of the fracturing carrier fluid.

### Claim 20 (depends on 1)

A method of fracturing a subterranean formation, comprising:
injecting the fracturing fluid of claim 1 into a subterranean formation at a pressure sufficient to open at least one fracture in the subterranean formation.