Systems and methods of initiating energetic reactions for reservoir stimulation

Patent metadata

Field	Value
Publication number	US-12560066-B2
Application number	US-202519184782-A
Country	US
Kind code	B2
Filing date	Apr 21, 2025
Priority date	Nov 20, 2017
Publication date	Feb 24, 2026
Grant date	Feb 24, 2026

Abstract

Methods for initiating chemical reactions in a wellbore include delivering one or more reactive components via a carrier fluid to the wellbore. The one or more reactive components delivered to the wellbore are configured to enable one or more chemical reactions to occur. The one or more chemical reactions are carried out until a threshold volume of the one or more reactive components is delivered to the wellbore.

First claim

The invention claimed is:

1 . A method for initiating chemical reactions in a wellbore, the method comprising:
delivering one or more reactive components via a carrier fluid to the wellbore, wherein the one or more reactive components are configured to initiate one or more chemical reactions that cause the carrier fluid to expand; determining, via a control system based on measurement data indicative of a volume of the one or more reactive components delivered to the wellbore, that the volume of the one or more reactive components delivered to the wellbore meets or exceeds a threshold volume of the one or more reactive components; terminating, via the control system, delivery of the one or more reactive components to the wellbore in response to determining that the threshold volume is met or exceeded; and generating electricity in the wellbore using piezoelectric fibers, wherein the electricity is configured to cause the one or more reactive components to initiate the one or more chemical reactions.

2 . The method of claim 1 , wherein the piezoelectric fibers are configured to generate the electricity from one or more piezo-composites or one or more piezo-crystals when the piezoelectric fibers are pressurized.

3 . The method of claim 1 , further comprising controlling a quantity of pressure applied to the piezoelectric fibers.

4 . The method of claim 1 , wherein the one or more reactive components are embedded within cement within at least a portion of the wellbore.

5 . The method of claim 1 , further comprising controlling a rate of electricity generation in the wellbore.

6 . The method of claim 1 , further comprising controlling a rate of delivery of the one or more reactive components via the carrier fluid to the wellbore.

7 . The method of claim 1 , further comprising delivering a dispersant to the wellbore with the one or more reactive components and the carrier fluid as a slurry;
wherein the dispersant decreases a viscosity of the slurry; wherein the dispersant includes polyacrylic acid, a polyacrylate, polymethacrylic acid, a polymethacrylate, a polycarboxylate, a polyvinylpyrrolidone, a sulfonate, a polyacrylamide, poly (2-acrylamido-2-methyl-1-propanesulfonic acid), a derivative of any thereof, a copolymer of any two or more thereof, or a mixture of any two or more thereof, and wherein the dispersant is added to the slurry before or during the delivery of the slurry to the wellbore.

8 . The method of claim 1 , further comprising delivering a dispersant to the wellbore with the one or more reactive components and the carrier fluid as a slurry;
wherein the dispersant decreases a viscosity of the slurry; wherein the dispersant includes a small molecule surfactant including a sulfonate, a phosphate, a carboxylate, aurintricarboxylic acid ammonium salt, 4,5-dihydroxy-1,3-benzenedisulfonic acid disodium salt, sodium hexametaphosphate, a derivative of any thereof, or a mixture of any two or more thereof; and wherein the dispersant is added to the slurry before or during the delivery of the slurry to the wellbore.

9 . A method for initiating chemical reactions in a wellbore, the method comprising:
reducing a particle size of one or more reactive components via a mechanical tool, wherein the one or more reactive components are configured to initiate one or more chemical reactions in the wellbore, and wherein reducing the particle size of the one or more reactive components increases a reactivity of the one or more reactive components by increasing a surface area of the one or more reactive components; delivering the one or more reactive components having the reduced particle size to the wellbore via a carrier fluid, wherein the one or more chemical reactions cause the carrier fluid to expand; carrying out the one or more chemical reactions via contact between the one or more reactive components in the wellbore; determining, via a control system based on measurement data indicative of a volume of the one or more reactive components delivered to the wellbore, that the volume of the one or more reactive components meets or exceeds a threshold volume of the one or more reactive components; and terminating, via the control system in response to determining that the threshold volume is met or exceeded, at least one of delivery of the one or more reactive components to the wellbore or reduction of the particle size of the one or more reactive components.

10 . The method of claim 9 , wherein the one or more reactive components are embedded within cement within at least a portion of the wellbore.

11 . The method of claim 9 , wherein the mechanical tool includes a reamer, a grinder, or a crusher.

12 . A method for initiating chemical reactions in a wellbore, the method comprising:
delivering one or more reactive components via a carrier fluid to the wellbore, wherein the one or more reactive components are configured to initiate one or more chemical reactions that cause the carrier fluid to expand; reducing a particle size of the one or more reactive components in the wellbore via a mechanical tool, wherein reducing the particle size of the one or more reactive components increases a reactivity of the one or more reactive components by increasing a surface area of the one or more reactive components; carrying out the one or more chemical reactions via contact between the one or more reactive components in the wellbore; determining, via a control system based on measurement data indicative of a volume of the one or more reactive components delivered to the wellbore, that the volume of the one or more reactive components meets or exceeds a threshold volume of the one or more reactive components; and terminating, via the control system in response to determining that the threshold volume is met or exceeded, at least one of delivery of the one or more reactive components to the wellbore or reduction of the particle size of the one or more reactive components.

13 . The method of claim 12 , wherein the one or more reactive components are encapsulated by a coating when delivered to the wellbore, and wherein the method further comprises controlling, via the control system, a release of the one or more reactive components from the coating in the wellbore.

14 . The method of claim 13 , wherein the control system controls the mechanical tool to release the one or more reactive components from the coating in the wellbore and to reduce the particle size of the one or more reactive components in the wellbore.

15 . The method of claim 13 , wherein the control system controls the release of the one or more reactive components from the coating in the wellbore via controlling a temperature of the carrier fluid.

16 . The method of claim 12 , wherein the mechanical tool includes a rotating blade or a grinder.

Assignees

• Schlumberger Technology Corp

Inventors

• Phatak Alhad
• Sridhar Garud Bindiganavale
• Pipchuk Douglas
• Potapenko Dmitriy
• Willberg Dean Michael
• Brown James Ernest

Classifications

• E21B36/008

  using chemical heat generating means · CPC title

• E21B43/248

  using explosives · CPC title

• E21B43/267

  reinforcing fractures by propping · CPC title

• E21B43/263 Primary

  using explosives · CPC title