Silane compositions for use in subterranean formation operations

Patent metadata

Field	Value
Publication number	US-9850424-B2
Application number	US-201414439004-A
Country	US
Kind code	B2
Filing date	Jun 18, 2014
Priority date	Jun 18, 2014
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

Methods including providing a silane composition selected from the group consisting of a dipodal silane, a long-chain silane, and any combination thereof, wherein the dipodal silane includes at least two carbon chains having between about 2 and about 36 carbon atoms, and wherein the long-chain silane includes at least one carbon chain having between about 2 and about 36 carbon atoms; coating proppant particulates with the silane composition, thereby forming silane composition coated proppant particulates; and introducing the silane composition coated proppant particulates into at least one fracture in a subterranean formation, thereby stabilizing loose particulates therein.

First claim

The invention claimed is:

1. A method comprising:
providing a silane composition selected from the group consisting of a dipodal silane, a long-chain silane, and any combination thereof,
wherein the dipodal silane includes at least two carbon chains having between 8 and 36 carbon atoms and is selected from the group consisting of:

and any combination thereof,
wherein p and r are integers between 1 and 30; wherein m and n are carbon chains having between 8 and 36 carbon atoms; and wherein R 1 through R 4 are carbon chains having between 1 and 4 carbon atoms, including bis- and tris-species thereof, and

wherein the long-chain silane includes at least one carbon chain having between 8 and 36 carbon atoms and is represented by the Formula:

wherein m and n are carbon chains having between 8 and 36 carbon atoms, and R 5 through R 8 are carbon chains having between 1 and 4 carbon atoms, including bis- and tris-species thereof;
coating proppant particulates with the silane composition, thereby forming silane composition coated proppant particulates; and
introducing the silane composition coated proppant particulates into at least one fracture in a subterranean formation, thereby stabilizing any loose particulates therein.

2. The method of claim 1 , wherein the carbon chains of the dipodal silane and/or the long-chain silane are selected from the group consisting of a branched residue, a linear residue, and any combination thereof.

3. The method of claim 1 , wherein the at least two carbon chains of the dipodal silane have between 8 and 18 carbon atoms.

4. The method of claim 1 , wherein the at least one carbon chain of the long-chain silane has between 8 and 16 carbon atoms.

5. The method of claim 1 , wherein the silane composition comprises Compound 3, Compound 3 further comprising a secondary amine nitrogen substitution with a carbon chain of between 8 and 36 carbon atoms.

6. The method of claim 1 , wherein the silane composition comprises Compound 4, Compound 4 further comprising a secondary amine nitrogen substitution with a carbon chain of between 8 and 36 carbon atoms.

7. The method of claim 1 , wherein the silane composition comprises Compound 3 and R 3 is an ethyl group.

8. The method of claim 1 , wherein n has 11 carbon atoms, m has 10 carbon atoms, R 6 has 1 carbon atom, and R 5 through R 5 are methyl groups.

9. A method comprising:
providing a silane composition selected from the group consisting of a dipodal silane, a long-chain silane, and any combination thereof,
wherein the dipodal silane includes at least two carbon chains having between 8 and 36 carbon atoms and is selected from the group consisting of:

and any combination thereof,
wherein p and r are integers between 1 and 30; wherein m and n are carbon chains having between 8 and 36 carbon atoms; and wherein R 1 through R 4 are carbon chains having between 1 and 4 carbon atoms, including bis- and tris-species thereof, and

wherein the long-chain silane includes at least one carbon chain having between 8 and 36 carbon atoms and is represented by the Formula:

wherein m and n are carbon chains having between 8 and 36 carbon atoms; and R 5 through R 8 are carbon chains having between 1 and 4 carbon atoms, including bis- and tris-species thereof;
introducing the silane composition into a subterranean formation having at least one fracture therein; and
coating the silane composition on at least one of a face of the subterranean formation and the fracture therein, thereby stabilizing any loose particulates therein.

10. The method of claim 9 , wherein the at least two carbon chains of the dipodal silane have between 8 and 18 carbon atoms.

11. The method of claim 9 , wherein the at least one carbon chain of the long-chain silane has between 8 and 16 carbon atoms.

12. The method of claim 9 , wherein the silane composition comprises Compound 3, Compound 3 further comprising a secondary amine nitrogen substitution with a carbon chain of between 8 and 36 carbon atoms.

13. The method of claim 9 , wherein the silane composition comprises Compound 4, Compound 4 further comprising a secondary amine nitrogen substitution with a carbon chain of between 8 and 36 carbon atoms.

14. The method of claim 9 , wherein the silane composition comprises Compound 3 and R 3 is an ethyl group.

15. The method of claim 9 , wherein n has 11 carbon atoms, m has 10 carbon atoms, R 6 has 1 carbon atom, and R5 through R8 are methyl groups.

16. A system comprising:
a wellhead with a tubular extending therefrom and into a subterranean formation, having a pump fluidly coupled to the tubular; and
introducing a silane composition into the subterranean formation through the tubular,
wherein the silane composition is selected from the group consisting of a dipodal silane, a long-chain silane, and any combination thereof,
wherein the dipodal silane includes at least two carbon chains having between 8 and 36 carbon atoms and is selected from the group consisting of:

and any combination thereof,
wherein p and r are integers between 1 and 30; wherein m and n are carbon chains having between 8 and 36 carbon atoms; and wherein R 1 through R 4 are carbon chains having between 1 and 4 carbon atoms, including bis- and tris-species thereof, and

wherein the long-chain silane includes at least one carbon chain having between 8 and 36 carbon atoms and is represented by the Formula:

wherein m and n are carbon chains having between 8 and 36 carbon atoms; and R 5 through R 8 are carbon chains having between 1 and 4 carbon atoms, including bis- and tris-species thereof.

Assignees

• Halliburton Energy Services Inc

Inventors

• Stanciu Corneliu
• Ogle James

Classifications

• E21B43/267

  reinforcing fractures by propping · CPC title

• C09K8/56

  Compositions for consolidating loose sand or the like around wells without excessively decreasing the permeability thereof (compositions for plastering borehole walls C09K8/50; {Soil-conditioning materials or soil-stabilising materials in general C09K17/00}) · CPC title

• E21B43/04

  Gravelling of wells · CPC title

• C09K8/565

  Oil-based compositions · CPC title

• C09K8/805 Primary

  Coated proppants · CPC title