# US 9,038,717 B2 · Methods of transporting proppant particulates in a subterranean formation

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- Number: US 9,038,717 B2
- Document ID: US9038717B2
- Status: Granted
- Kind: B2
- Application number: 13/788,132
- Filed: 2013-03-07
- Published: 2014-09-11
- Granted: 2015-05-26
- Earliest claimed: 2013-03-07
- Assignees: Halliburton Energy Services, Inc.
- Applicants: Halliburton Energy Services, Inc.
- Inventors: Loan K. Vo; Philip D. Nguyen
- Web page: https://patentgrep.com/patent/US9038717B2

## CPC

- E21B 43/267: reinforcing fractures by propping
- C09K 8/82: Oil-based compositions (C09K8/64 takes precedence)
- E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE

## Abstract

Methods of treating a wellbore in a subterranean formation including providing an oil-external treatment fluid, wherein the oil-external treatment fluid is a 3D-network comprising a chemical interaction between a hydrocarbon fluid, an aqueous fluid, and a surface modification agent; providing proppant particulates; suspending the proppant particulates in the oil-external treatment fluid; and introducing the oil-external treatment fluid comprising the proppant particulates into the wellbore in the subterranean formation.

## Claims

### Claim 1

A method comprising treating a wellbore in a subterranean formation comprising:
providing an oil-external treatment fluid,
wherein the oil-external treatment fluid is a 3D-network comprising a chemical interaction between a hydrocarbon fluid, an aqueous fluid, and a surface modification agent, the surface modification agent present from about 0.01% to about 10% by weight of the oil-external treatment fluid;
providing proppant particulates;
suspending the proppant particulates in the oil-external treatment fluid; and
introducing the oil-external treatment fluid comprising the proppant particulates into the wellbore in the subterranean formation.

### Claim 2 (depends on 1)

The method of claim 1, wherein the chemical interaction between the hydrocarbon fluid, the aqueous fluid, and the surface modification agent is a Van der Waals interaction.

### Claim 3 (depends on 1)

The method of claim 1, wherein the wellbore in the subterranean formation comprises at least one fracture and wherein the step of introducing the oil-external treatment fluid comprising the proppant particulates into the wellbore in the subterranean formation further comprises placing at least a portion of the proppant particulates into the at least one fracture.

### Claim 4 (depends on 1)

The method of claim 1, wherein the wellbore in the subterranean formation comprises a gravel packing screen creating an annulus between the wellbore in the subterranean formation and the gravel packing screen, and the step of introducing the oil-external treatment fluid comprising the proppant particulates into the wellbore in the subterranean formation further comprises placing the proppant particulates in the annulus between the wellbore in the subterranean formation and the gravel packing screen.

### Claim 5 (depends on 1)

The method of claim 1, wherein the surface modification agent is selected from the group consisting of a non-aqueous tackifying agent; an aqueous tackifying agent; a silyl-modified polyamide compound; a surface modification agent emulsion; a binder; and any combination thereof.

### Claim 6 (depends on 1)

The method of claim 1, wherein at least a portion of the proppant particulates comprise degradable particles.

### Claim 7

A method comprising treating a wellbore in a subterranean formation comprising:
providing an oil-external treatment fluid,
wherein the oil-external treatment fluid is a 3D-network comprising a chemical interaction between a hydrocarbon fluid, an aqueous fluid, and a surface modification agent coated onto proppant particulates, the surface modification agent present from about 0.01% to about 10% by weight of the oil-external treatment fluid; and
introducing the oil-external treatment fluid into the wellbore in the subterranean formation.

### Claim 8 (depends on 7)

The method of claim 7, wherein the chemical interaction between the hydrocarbon fluid, the aqueous fluid, and the surface modification agent coated proppant particulates is a Van der Waals interaction.

### Claim 9 (depends on 7)

The method of claim 7, wherein the wellbore in the subterranean formation comprises at least one fracture and wherein the step of introducing the oil-external treatment fluid into the wellbore in the subterranean formation further comprises placing at least a portion of the proppant particulates coated with the surface modification agent into the at least one fracture.

### Claim 10 (depends on 7)

The method of claim 7, wherein the wellbore in the subterranean formation comprises a gravel packing screen creating an annulus between the wellbore in the subterranean formation and the gravel packing screen, and the step of introducing the oil-external treatment fluid into the wellbore in the subterranean formation further comprises placing at least a portion of the proppant particulates coated with the surface modification agent through the annulus between the wellbore in the subterranean formation and the gravel packing screen.

### Claim 11 (depends on 7)

The method of claim 7, wherein the surface modification agent is selected from the group consisting of a non-aqueous tackifying agent; an aqueous tackifying agent; a silyl-modified polyamide compound; a surface modification agent emulsion; a binder; and any combination thereof.

### Claim 12

A method comprising treating a wellbore in a subterranean formation comprising:
providing a hydrocarbon fluid;
providing aqueous fluid;
providing a surface modification agent;
providing proppant particulates;
providing a hydrojetting tool connected to a tubular member within the wellbore in the subterranean formation, so as to create an annulus between the tubular member and the wellbore in the subterranean formation;
introducing the surface modification agent into the hydrocarbon fluid or the aqueous fluid;
introducing the proppant particulates into the hydrocarbon fluid or the aqueous fluid;
introducing one of the hydrocarbon fluid or the aqueous fluid into the wellbore in the subterranean formation through the hydrojetting tool and introducing the other of the hydrocarbon fluid or the aqueous fluid into the wellbore in the subterranean formation through the annulus between the tubular member and the wellbore in the subterranean formation; and
contacting the hydrocarbon fluid and the aqueous fluid within the wellbore in the subterranean formation, so as to create an oil-external treatment fluid that is a 3D-network comprising a chemical interaction between the hydrocarbon fluid, the aqueous fluid, and the surface modification agent, the surface modification agent present from about 0.01% to about 10% by weight of the oil-external treatment fluid,
wherein the oil-external treatment fluid is capable of suspending the proppant particulates.

### Claim 13 (depends on 12)

The method of claim 12, wherein the surface modification agent is added to the hydrocarbon fluid and introduced into the wellbore in the subterranean formation through the hydrojetting tool and wherein the proppant particulates are added to the aqueous fluid and introduced into the wellbore in the subterranean formation through the annulus between the tubular member and the wellbore in the subterranean formation.

### Claim 14 (depends on 12)

The method of claim 12, wherein the surface modification agent is added to the aqueous fluid and introduced into the wellbore in the subterranean formation through the hydrojetting tool and wherein the proppant particulates are added to the hydrocarbon fluid and introduced into the wellbore in the subterranean formation through the annulus between the tubular member and the wellbore in the subterranean formation.

### Claim 15 (depends on 12)

The method of claim 12, wherein the surface modification agent is added to the hydrocarbon fluid and introduced into the wellbore in the subterranean formation through the annulus between the tubular member and the wellbore in the subterranean formation and wherein the proppant particulates are added to the aqueous fluid and introduced into the wellbore in the subterranean formation through the hydrojetting tool.

### Claim 16 (depends on 12)

The method of claim 12, wherein the surface modification agent is added to the aqueous fluid and introduced into the wellbore in the subterranean formation through the annulus between the tubular member and the wellbore in the subterranean formation and wherein the proppant particulates are added to the hydrocarbon fluid and introduced into the wellbore in the subterranean formation through the hydrojetting tool.

### Claim 17 (depends on 12)

The method of claim 12, wherein the chemical interaction between the hydrocarbon fluid, the aqueous fluid, and the surface modification agent is a Van der Waals type interaction.

### Claim 18 (depends on 12)

The method of claim 12, wherein the wellbore in the subterranean formation comprises at least one fracture and wherein the step of contacting the hydrocarbon fluid or the aqueous fluid within the wellbore in the subterranean formation occurs at least one fracture, so as to place the proppant particulates therein.

### Claim 19 (depends on 12)

The method of claim 12, wherein the step of contacting the hydrocarbon fluid or the aqueous fluid within the wellbore in the subterranean formation causes the surface modification agent to be coated onto the proppant particulates.

### Claim 20 (depends on 12)

The method of claim 12, wherein the surface modification agent is selected from the group consisting of a non-aqueous tackifying agent; an aqueous tackifying agent; a silyl-modified polyamide compound; a surface modification agent emulsion; a binder; and any combination thereof.
