Well production enhancement systems and methods to enhance well production

Patent metadata

Field	Value
Publication number	US-11352859-B2
Application number	US-201916572096-A
Country	US
Kind code	B2
Filing date	Sep 16, 2019
Priority date	Sep 16, 2019
Publication date	Jun 7, 2022
Grant date	Jun 7, 2022

Abstract

Well production enhancement systems and methods to enhance well production are disclosed. The method includes deploying an outer conveyance into a wellbore, where a plurality of propellants are deployed along a section of the outer conveyance. The method also includes deploying one or more isolation devices to form one or more isolation zones along the outer conveyance. The method further includes deploying an inner conveyance within the outer conveyance, where the inner conveyance is initially deployed along the section of the outer conveyance. The method further includes detonating the plurality of propellants to generate one or more fractures in a formation proximate to the section of the outer conveyance. The method further includes injecting fracture enhancement fluids into the one or more fractures to enhance well production through the one or more fractures.

First claim

What is claimed is:

1. A method to enhance well production, the method comprising:
deploying an outer conveyance into a wellbore, wherein a plurality of propellants are deployed along a section of the outer conveyance;
deploying one or more isolation devices to form one or more isolation zones along the outer conveyance;
deploying an inner conveyance within the outer conveyance, wherein the inner conveyance is initially deployed along the section of the outer conveyance;
detonating the plurality of propellants to generate one or more fractures in a formation proximate to the section of the outer conveyance in a time sequence to create a pulsing effect; and
injecting fracture enhancement fluids into the one or more fractures to enhance well production through the one or more fractures after one or more of the plurality of propellants are detonated.

2. The method of claim 1 , further comprising:
pressurizing the fracture enhancement fluids; and
after detonating the plurality of propellants, actuating a sliding sleeve deployed in the section of the outer conveyance,
wherein injecting the fracture enhancement fluids comprises injecting the pressurized fracture enhancement fluids through the sliding sleeve and into the one or more fractures.

3. The method of claim 2 , wherein the fracture enhancement fluids are pressurized prior to detonating the plurality of propellants.

4. The method of claim 2 , wherein the fracture enhancement fluids comprise one or more of fracture fluids and treatment fluids.

5. The method of claim 1 , further comprising:
actuating a perforation tool to perforate a zone of interest along the section of the outer conveyance, and wherein the perforation tool is actuated prior to detonating the plurality of propellants; and
after injecting the fracture enhancement fluids, injecting an isolation material to isolate the perforated zone of interest along the section of the outer conveyance.

6. The method of claim 5 , further comprising:
pressurizing the fracture enhancement fluids prior to detonating the plurality of propellants,
wherein injecting the fracture enhancement fluids comprises after perforating a zone of interest along the section of the outer conveyance, injecting the pressurized fracture enhancement fluids through the perforated zone of interest along the section of the outer conveyance.

7. The method of claim 6 , wherein the fracture enhancement fluids comprise one or more of fracture fluids and treatment fluids.

8. The method of claim 5 , wherein the zone of interest is along a blank section of the outer conveyance.

9. The method of claim 1 , wherein the outer conveyance is a working string,
wherein the inner conveyance is a coiled tubing, and wherein the plurality of propellants are ignited after deployment of the coiled tubing within the work string.

10. A method to enhance well production, the method comprising:
perforating a plurality of zones of interest along a cased wellbore;
deploying a plurality of conveyance joints into the cased wellbore, each conveyance joint having a sliding sleeve and one or more isolation devices operable to form an isolation zone along the respective conveyance joint, and each conveyance joint having a plurality of propellants deployed along the respective conveyance joint;
connecting the plurality of conveyance joints to form an outer conveyance;
deploying an inner conveyance within the outer conveyance, wherein the inner conveyance is initially deployed along a conveyance joint of the outer conveyance;
detonating the plurality of propellants deployed along the conveyance joint in which the inner conveyance is initially deployed to generate one or more fractures in a formation proximate to said conveyance joint;
actuating a sliding sleeve of the conveyance joint in which the inner conveyance is initially deployed;
injecting fracture enhancement fluids through the sliding sleeve and into the one or more fractures to enhance well production through the one or more fractures; and
closing the sliding sleeve of the conveyance joint in which the inner conveyance is initially deployed.

11. The method of claim 10 , further comprising deploying the one or more isolation devices of each conveyance joint of the plurality of conveyance joints prior to deploying the inner conveyance within the outer conveyance.

12. The method of claim 10 , further comprising deploying the one or more isolation devices of the conveyance joint in which the inner conveyance is initially deployed.

13. The method of claim 10 , further comprising
re-deploying an inner conveyance to an adjacent conveyance joint and within the outer conveyance;
detonating the plurality of propellants deployed along the adjacent conveyance joint to generate one or more fractures in the formation proximate to the adjacent conveyance joint;
actuating a sliding sleeve of the adjacent conveyance joint;
injecting fracture enhancement fluids through the sliding sleeve of the adjacent conveyance joint and into the one or more fractures in the formation proximate to the adjacent conveyance joint to enhance well production through said one or more fractures; and
closing the sliding sleeve of the adjacent conveyance joint.

14. A well production enhancement system, comprising:
an outer conveyance deployed in a wellbore and having a plurality of sections;
a plurality of isolation devices deployed along the outer conveyance, wherein deployment of the plurality of isolation devices forms a plurality of isolation zones along the outer conveyance;
a plurality of propellants deployed along each section of the outer conveyance and configured to be detonated in a time sequence to create a pulsing effect, wherein detonation of one or more of the plurality of the propellants generate one or more fractures proximate a section of the outer conveyance where the one or more of the plurality of propellants are deployed; and
an inner conveyance deployable within the outer conveyance, the inner conveyance providing a fluid flow path for fracture enhancement fluids to flow within the inner conveyance, and into the one or more fractures to enhance well production through the one or more fractures after at least one of the one or more propellants is detonated.

15. The well production enhancement system of claim 14 , further comprising one or more sliding sleeves deployed along the plurality of sections of the outer conveyance, wherein the inner conveyance is operable to actuate the one or more sliding sleeves, and wherein the fracture enhancement fluids flow through the one or more sliding sleeves into the one or more fractures.

16. The well production enhancement system of claim 14 , further comprising a tool operable to perforate a plurality of zones of interest along the outer conveyance.

17. The well production enhancement system of claim 16 , wherein the plurality of zones of interest are perforated before the inner conveyance is deployed within the outer conveyance.

18. The well production enhancement system of claim 16 , wherein the plurality of zones of interest are perforated before the outer conveyance is deployed in the wellbore.

19. The well production enhancement system of claim 16 , wherein the tool is at least one of a perforating gun and a hydrojet tool.

Assignees

• Halliburton Energy Services Inc

Inventors

• Nguyen Philip D
• Sanders Michael W
• Stephenson Stanley V

Classifications

• E21B43/116 Primary

  Gun or shaped-charge perforators · CPC title

• E21B33/124

  Units with longitudinally-spaced plugs for isolating the intermediate space · CPC title

• E21B43/263

  using explosives · CPC title

• E21B43/114

  Perforators using direct fluid action {on the wall to be perforated}, e.g. abrasive jets · CPC title

• E21B43/14

  Obtaining from a multiple-zone well · CPC title