Pressure controlled wellbore treatment

Patent metadata

Field	Value
Publication number	US-11035213-B2
Application number	US-201916405595-A
Country	US
Kind code	B2
Filing date	May 7, 2019
Priority date	May 7, 2019
Publication date	Jun 15, 2021
Grant date	Jun 15, 2021

Abstract

To improve or optimize a wellbore treatment operation, a target net treating pressure may be determined and the constant net treating pressure maintained to effectively enhance formation breakdown and fracture complexity as well as provide a reduction in wear and tear of equipment and completion time. The target net treating pressure may be based on one or more treatment parameters and these parameters may be adjusted during the wellbore treatment operation to maintain a constant net treating pressure at or about the target net treating pressure. The injection rate or pressure of a treatment fluid may be adjusted to maintain the constant net treating pressure. Measurements associated with the wellbore treatment operation may be compared to an operational constraint and adjustments to the wellbore treatment operation may be made based on the comparison. The wellbore treatment operation may be terminated based on a parameter falling below or exceeding a threshold.

First claim

What is claimed is:

1. A method of performing a wellbore treatment operation, comprising:
establishing a target net treating pressure for the wellbore treatment operation;
establishing one or more operational constraints associated with the wellbore treatment operation;
initiating the wellbore treatment operation by injecting a fluid in a wellbore of a formation based on the target net treating pressure;
monitoring disposition of the fluid in the wellbore;
adjusting an injection rate of the fluid to maintain a net treating pressure of the wellbore treatment operation at the target net treating pressure;
receiving one or more measurements associated with the wellbore treatment operation;
comparing the one or more measurements to the one or more operational constraints associated with the one or more measurements to determine if the wellbore treatment operation is performing within the one or more operational constraints; and
in response to determining that the wellbore treatment operation is not performing within the one or more operational constraints, maintaining the net treating pressure of the wellbore treatment operation at the target net treating pressure as a constant net treating pressure by adjusting one or more treatment parameters based on the comparison, wherein the constant net treating pressure is maintained at a set point for a predetermined period of time.

2. The method of claim 1 , wherein the one or more treatment parameters comprises at least one of a flow rate of the fluid, a composition of the fluid, a pressure of the fluid.

3. The method of claim 1 , wherein adjusting the one or more treatment parameters comprises adjusting a flow rate of the fluid.

4. The method of claim 1 , further comprising adjusting the target net treating pressure during a near wellbore diversion to reduce the flow rate of the fluid.

5. The method of claim 1 , further comprising adjusting the target net treating pressure after a duration of time.

6. The method of claim 1 , wherein adjusting the one or more treatment parameters comprises altering a configuration of one or more pumps associated with the wellbore treatment operation.

7. The method of claim 1 , further comprising altering a characteristic of the fluid to dispose the fluid in one or more perforations of the formation.

8. A non-transitory computer-readable medium storing one or more instructions that, when executed by a processor, cause the processor to perform operations comprising:
establishing a target net treating pressure for a wellbore treatment operation;
establishing one or more operational constraints associated with the wellbore treatment operation;
initiating the wellbore treatment operation by injecting a fluid in a wellbore of a formation based on the target net treating pressure;
monitoring disposition of the fluid in the wellbore;
adjusting an injection rate of the fluid to maintain a net treating pressure of the wellbore treatment operation at the target net treating pressure;
receiving one or more measurements associated with the wellbore treatment operation;
comparing the one or more measurements to the one or more operational constraints associated with the one or more measurements to determine if the wellbore treatment operation is performing within the one or more operational constraints; and
in response to determining that the wellbore treatment operation is not performing within the one or more operational constraints, maintaining the net treating pressure of the wellbore treatment operation at the target net treating pressure as a constant net treating pressure by adjusting one or more treatment parameters based on the comparison, wherein the constant net treating pressure is maintained at a set point for a predetermined period of time.

9. The non-transitory computer-readable medium of claim 8 , wherein the one or more treatment parameters comprises at least one of a flow rate of the fluid, a composition of the fluid, a pressure of the fluid.

10. The non-transitory computer-readable medium of claim 8 , wherein adjusting the one or more treatment parameters comprises adjusting a flow rate of the fluid.

11. The non-transitory computer-readable medium of claim 8 , wherein the one or more operations further comprising adjusting the target net treating pressure during a near wellbore diversion to reduce the flow rate of the fluid.

12. The non-transitory computer-readable medium of claim 8 , wherein the one or more operations further comprising at least one of adjusting the target net treating pressure after a duration of time and adjusting the one or more treatment parameters comprises altering a configuration of one or more pumps associated with the wellbore treatment operation.

13. The non-transitory computer-readable medium of claim 8 , the one or more operations further comprising altering a characteristic of the fluid to dispose the fluid in one or more perforations of the formation.

14. A wellbore treatment system comprising:
an injection system, wherein the injection system comprises one or more pumping units; and
a computing subsystem, wherein the computing subsystem comprises:
at least one processor; and
a memory comprising one or more non-transitory executable instructions that, when executed, cause the at least one processor to:
establish a target net treating pressure for a wellbore treatment operation;
establish one or more operational constraints associated with the wellbore treatment operation;
initiate the wellbore treatment operation by injecting a fluid in a wellbore of a formation based on the target net treating pressure;
monitor disposition of the fluid in the wellbore;
adjust an injection rate of the fluid to maintain a net treating pressure of the wellbore treatment operation at the target net treating pressure;
receive one or more measurements associated with the wellbore treatment operation;
compare the one or more measurements to the one or more operational constraints associated with the one or more measurements to determine if the wellbore treatment operation is performing within the one or more operational constraints; and
in response to determining that the wellbore treatment operation is not performing within the one or more operational constraints, maintain the net treating pressure of the wellbore treatment operation at the target net treating pressure as a constant net treating pressure by adjusting one or more treatment parameters based on the comparison, wherein the constant net treating pressure is maintained at a set point for a predetermined period of time.

15. The system of claim 14 , wherein the one or more treatment parameters comprises at least one of a flow rate of the fluid, a composition of the fluid, a pressure of the fluid.

16. The system of claim 14 , wherein adjusting the one or more treatment parameters comprises adjusting a flow rate of the fluid.

17. The system of claim 14 , wherein the one or more non-transitory executable instructions that, when executed, further cause the at least one processor to adjust the target net treating pressure during a near wellbore diversion to reduce the flow rate of the fluid.

18. The system of claim 14 , wherein the one or more non-transitory executable instructions that, when executed, further cause the at least one processor to adjust the target net treating pressure after a duration of time.

19. The system of claim 14 , wherein the one or more non-transitory executable instructions that, when executed, further cause the at least one processor to

Assignees

• Halliburton Energy Services Inc

Inventors

• Dusterhoft Ronald Glen
• Stephenson Stanley Vernon
• Hunter Timothy Holiman
• Mazrooee Mehdi

Classifications

• E21B43/25

  Methods for stimulating production {(by vibrating earth formations E21B43/003)} · CPC title

• E21B43/114

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

• E21B43/255

  including the injection of a gaseous medium as treatment fluid into the formation · CPC title

• E21B43/26 Primary

  by forming crevices or fractures · CPC title