Electrically controlled propellant materials for subterranean zonal isolation and diversion

Patent metadata

Field	Value
Publication number	US-11428087-B2
Application number	US-201616337318-A
Country	US
Kind code	B2
Filing date	Oct 27, 2016
Priority date	Oct 27, 2016
Publication date	Aug 30, 2022
Grant date	Aug 30, 2022

Abstract

Methods of diverting fluid flow, controlling fluid loss, and/or providing zonal isolation in subterranean formations are provided. In some embodiments, the methods comprise: providing a particulate material that comprises an electrically controlled propellant; placing the particulate material in at least a first portion of the subterranean formation; introducing a treatment fluid into the subterranean formation; and allowing the particulate material to at least partially divert the flow of the treatment fluid away from the first portion of the formation.

First claim

What is claimed is:

1. A method comprising:
providing a particulate material that comprises an electrically controlled propellant;
placing the particulate material in at least a first portion of a subterranean formation;
introducing a treatment fluid into the subterranean formation;
allowing the particulate material to at least partially divert a flow of the treatment fluid away from the first portion of the subterranean formation wherein:
the first portion of the subterranean formation comprises one or more perforations in a casing disposed in a first interval of a well bore that penetrates at least the first portion of the subterranean formation; and
the particulate material at least partially obstructs the perforations in the first interval of the well bore and diverts the flow of the treatment fluid to a second interval of the well bore, and

applying an electrical current to at least a portion of the electrically controlled propellant to ignite the portion of the electrically controlled propellant in the first portion of the subterranean formation.

2. The method of claim 1 , wherein the electrical current is applied in an amount of from about 10 milliamps to about 100 milliamps.

3. The method of claim 1 , wherein the electrical current is applied to at least a portion of the casing in a well bore penetrating at least the first portion of the subterranean formation.

4. The method of claim 1 , wherein the particulate material further comprises at least one material selected from the group consisting of: an acid soluble material, a degradable material, cement, fiberglass, a ceramic material, carbon fibers, a polymeric material, sand, clay, and any combination thereof.

5. The method of claim 1 , wherein introducing the treatment fluid into the subterranean formation comprises introducing the treatment fluid into the subterranean formation at or above a pressure sufficient to create or enhance at least one fracture in the subterranean formation.

6. The method of claim 1 , wherein the treatment fluid comprises an acid.

7. The method of claim 1 , wherein the electrically controlled propellant comprises:
a binder selected from the group consisting of: polyvinyl alcohol, polyvinylamine nitrate, polyethanolaminobutyne nitrate, polyethyleneimine nitrate, any copolymer thereof, and any mixture thereof;
an oxidizer selected from the group consisting of: ammonium nitrate, hydroxylamine nitrate, and any mixture thereof; and
a crosslinking agent.

8. The method of claim 1 , wherein the electrically controlled propellant comprises:
a binder consisting of polyvinyl alcohol;
an oxidizer consisting of ammonium nitrate, and
a crosslinking agent.

9. The method of claim 1 , wherein the electrically controlled propellant comprises:
a binder consisting of polyvinylamine nitrate;
an oxidizer consisting of ammonium nitrate; and
a crosslinking agent.

10. The method of claim 1 , wherein the electrically controlled propellant comprises:
a binder consisting of polyethanolaminobutyne nitrate;
an oxidizer consisting of ammonium nitrate; and
a crosslinking agent.

11. The method of claim 1 , wherein the electrically controlled propellant comprises:
a binder consisting of polyethyleneimine nitrate;
an oxidizer consisting of ammonium nitrate; and
a crosslinking agent.

12. The method of claim 1 , wherein the electrical current is applied with a corresponding voltage of from about 200V to about 600V.

13. The method of claim 1 , wherein the electrical current is provided from a direct current source.

14. The method of claim 1 , wherein the electrical current is provided from an alternating current source.

15. The method of claim 1 , wherein the electrical controlled propellant has particle sizes of from about 0.1 micron to about 1.0 millimeter.

16. The method of claim 1 , wherein the electrical controlled propellant has particle sizes of from about 1 micron to about 200 microns.

17. The method of claim 1 , wherein the electrical controlled propellant has particle sizes of from about 1 micron to about 30 microns.

18. The method of claim 1 , wherein the electrically controlled propellant has a shape selected from the group consisting of: platelets, shavings, flakes, ribbons, rods, strips, spheroids, toroids, pellets, tablets, and any combination thereof.

Assignees

• Halliburton Energy Services Inc

Inventors

• Nguyen Philip D
• Warpinski Norman R
• Martysevich Vladimir Nikolayevich
• Dusterhoft Ronald Glen
• Reyes Enrique Antonio

Classifications

• E21B33/138

  Plastering the borehole wall; Injecting into the formation · CPC title

• E21B21/003

  Means for stopping loss of drilling fluid (plastering the borehole wall E21B33/138) · CPC title

• E21B43/247 Primary

  in association with fracturing processes {or crevice forming processes} · CPC title

• C09K8/42

  Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells (compositions for plastering C09K8/50) · CPC title

• E21B43/267 Primary

  reinforcing fractures by propping · CPC title