Well connectivity analysis using pressure pulse

Patent metadata

Field	Value
Publication number	US-2025369348-A1
Application number	US-202418920483-A
Country	US
Kind code	A1
Filing date	Oct 18, 2024
Priority date	May 30, 2024
Publication date	Dec 4, 2025
Grant date	—

Abstract

A method comprises inducing, via one or more hydraulic fracturing components, a first signal in hydraulic fracturing fluid in a treatment well while hydraulically fracturing the treatment well, wherein the treatment well is formed in a subsurface formation. The method comprises detecting, via one or more sensors, a response signal in one or more offset wells formed in the subsurface formation based on the first signal, wherein the response signal indicates well connectivity between the treatment well and the one or more offset wells.

First claim

1 . A method comprising:
inducing, via one or more hydraulic fracturing components, a first signal in hydraulic fracturing fluid in a treatment well while hydraulically fracturing the treatment well, wherein the treatment well is formed in a subsurface formation; and detecting, via one or more sensors, a response signal in one or more offset wells formed in the subsurface formation based on the first signal, wherein the response signal indicates well connectivity between the treatment well and the one or more offset wells.

2 . The method of claim 1 further comprising:
determining one or more fracture properties based on the first signal and the response signal.

3 . The method of claim 2 , wherein the one or more fracture properties include fracture length and fracture system conductivity.

4 . The method of claim 3 further comprising:
determining a first travel time of the first signal in the treatment well based on wellbore dimensions of the treatment well and a wave speed of the first signal in the treatment well;
determining a second travel time of the response signal in the one or more offset wells well based on wellbore dimensions of the one or more offset wells and the wave speed of the response signal in the one or more offset wells; and
determining a subsurface formation travel time of a pressure pulse based on the first travel time and the second travel time.

5 . The method of claim 4 further comprising;
determining the wave speed of a pressure pulse in the subsurface formation; and
determining the fracture length based on the wave speed of the pressure pulse in the subsurface formation and the subsurface formation travel time.

6 . The method of claim 3 further comprising:
determining, via an inversion process, a fracture system resistance via a multi-well model; and
determining the fracture system conductivity based on fracture system resistance.

7 . The method of claim 1 further comprising:
determining a fluid loss rate based on a fracture length and a fracture conductivity; and
performing a hydraulic fracturing operation when the fluid loss rate exceeds a threshold.

8 . The method of claim 7 further comprising:
determining an effectiveness of the hydraulic fracturing operation based on a pressure signature measured on the one or more offset wells when the hydraulic fracturing operation is performed.

9 . The method of claim 1 , wherein the first signal is a pressure pulse in the hydraulic fracturing fluid, and wherein the one or more hydraulic fracturing components includes one or more frac pumps.

10 . A system comprising;
a treatment well formed in a subsurface formation; one or more offset wells formed in the subsurface formation; a processor; and a computer-readable medium having instructions stored thereon that are executable by the processor, the instructions including, instructions to induce, via one or more hydraulic fracturing components, a first signal in hydraulic fracturing fluid in the treatment well while hydraulically fracturing the treatment well; and instructions to detect, via one or more sensors, a response signal in one or more offset wells based on the first signal, wherein the response signal indicates well connectivity between the treatment well and the one or more offset wells.

11 . The system of claim 10 further comprising:
instructions to determine one or more fracture properties based on the first signal and the response signal, wherein the one or more fracture properties include fracture length and fracture system conductivity.

12 . The system of claim 11 further comprising:
instructions to determine a first travel time of the first signal in the treatment well based on wellbore dimensions of the treatment well and a wave speed of the first signal in the treatment well;
instructions to determine a second travel time of the response signal in the one or more offset wells well based on wellbore dimensions of the one or more offset wells and the wave speed of the response signal in the one or more offset wells; and
instructions to determine a subsurface formation travel time of a pressure pulse based on the first travel time and the second travel time.

13 . The system of claim 12 further comprising;
instructions to determine the wave speed of a pressure pulse in the subsurface formation; and
instructions to determine the fracture length based on the wave speed of the pressure pulse in the subsurface formation and the subsurface formation travel time.

14 . The system of claim 11 further comprising:
instructions to determine, via an inversion process, a fracture system resistance via a multi-well model; and
instructions to determine the fracture system conductivity based on fracture system resistance.

15 . The system of claim 10 further comprising:
instructions to determine a fluid loss rate based on a fracture length and a fracture conductivity; and
instructions to perform a hydraulic fracturing operation when the fluid loss rate exceeds a threshold.

16 . A non-transitory, computer-readable medium having instructions stored thereon that are executable by a processor, the instructions comprising:
instructions to induce, via one or more hydraulic fracturing components, a first signal in hydraulic fracturing fluid in a treatment well while hydraulically fracturing the treatment well, wherein the treatment well is formed in a subsurface formation; and instructions to detect, via one or more sensors, a response signal in one or more offset wells formed in the subsurface formation based on the first signal, wherein the response signal indicates well connectivity between the treatment well and the one or more offset wells.

17 . The non-transitory, computer-readable medium of claim 16 further comprising:
instructions to determine one or more fracture properties based on the first signal and the response signal, wherein the one or more fracture properties include fracture length and fracture system conductivity.

18 . The non-transitory, computer-readable medium of claim 17 further comprising:
instructions to determine a first travel time of the first signal in the treatment well based on wellbore dimensions of the treatment well and a wave speed of the first signal in the treatment well;
instructions to determine a second travel time of the response signal in the one or more offset wells well based on wellbore dimensions of the one or more offset wells and the wave speed of the response signal in the one or more offset wells; and
instructions to determine a subsurface formation travel time of a pressure pulse based on the first travel time and the second travel time.

19 . The non-transitory, computer-readable medium of claim 18 further comprising:
instructions to determine the wave speed of a pressure pulse in the subsurface formation; and
instructions to determine the fracture length based on the wave speed of the pressure pulse in the subsurface formation and the subsurface formation travel time.

20 . The non-transitory, computer-readable medium of claim 17 further comprising:
instructions to determine, via an inversion process, a fracture system resistance via a multi-well model; and
instructions to determine the fracture system conductivity based on fracture system resistance.

Assignees

• Halliburton Energy Services Inc

Inventors

• Shetty Dinesh Ananda
• Lee Erik
• Bale Derek Shelby
• Satti Rajani Prakash
• Sun Zhijie

Classifications

• E21B47/12 Primary

  Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling · CPC title

• E21B43/26 Primary

  by forming crevices or fractures · CPC title