Interpretation of pumping pressure behavior and diagnostic for well perforation efficiency during pumping operations

Patent metadata

Field	Value
Publication number	US-11634985-B2
Application number	US-201817267396-A
Country	US
Kind code	B2
Filing date	Dec 6, 2018
Priority date	Dec 6, 2018
Publication date	Apr 25, 2023
Grant date	Apr 25, 2023

Abstract

A method may comprise plotting treatment data to form a plot of the treatment data, fitting a function to the plot of the treatment data, determining an intercept of the function, calculating one or more coefficients, plotting the one or more coefficients on a histogram, and identifying one or more active flowpath elements on the histogram. A system may comprise a fluid handling system and an information handling system. The fluid handling system may comprise a fluid supply vessel, wherein the fluid supply vessel is disposed on a surface; pumping equipment, wherein the pumping equipment it attached to the fluid supply vessel and disposed on the surface; wellbore supply conduit, wherein the wellbore supply conduit is attached to the pumping equipment and disposed in a formation; and a plurality of flowpath elements, wherein the flowpath elements fluidly couple the wellbore supply conduit to the formation.

First claim

What is claimed is:

1. A method, comprising:
measuring hydraulic fracture treatment data from at least a pressure sensor and a flow rate sensor during a hydraulic fracturing operation;
plotting the hydraulic fracture treatment data to form a plot of the hydraulic fracture treatment data;
fitting a function to the plot of the hydraulic fracture treatment data;
determining an intercept of the function;
calculating one or more coefficients;
plotting the one or more coefficients on a histogram; and
identifying one or more active flowpath elements on the histogram, wherein the one or more active flowpath elements are one or more perforation holes or perforation clusters.

2. The method of claim 1 , wherein the plotting the hydraulic fracture treatment data is a pressure in view of a flow rate.

3. The method of claim 1 , wherein the intercept is defined as a zero flow rate.

4. The method of claim 1 , further comprising displaying the histogram on a video display.

5. The method of claim 4 , further comprising displaying a scatter plot of the hydraulic fracture treatment data and a hydraulic fracture treatment chart in real time.

6. The method of claim 1 , further comprising determining one or more local maximums on the histogram.

7. The method of claim 6 , further comprising determining distance between one or more major modes on the histogram.

8. The method of claim 1 , further comprising plotting a plurality of coefficients on the histogram over an identified period of time.

9. The method of claim 8 , wherein the active flowpath element is a ratio of the plurality of coefficients over the identified period of time.

10. The method of claim 1 , wherein the plotting the hydraulic fracture treatment data is volumetric flow rate in view of pressure divided by density.

11. A method, comprising:
disposing a casing into a formation;
perforating the casing with one or more elements;
measuring hydraulic fracture treatment data from at least a pressure sensor and a flow rate sensor during a hydraulic fracturing operation;
plotting the hydraulic fracture treatment data to form a plot of the hydraulic fracture treatment data;
fitting a linear function to the plot of the hydraulic fracturing treatment data;
determining an intercept of the function;
calculating a coefficient at the intercept;
plotting the coefficient on a histogram; and
identifying one or more active flowpath elements from the histogram, wherein the one or more active flowpath elements are one or more perforation holes or perforation clusters.

12. The method of claim 11 , wherein the plotting the hydraulic fracturing treatment data is a pressure in view of a flow rate.

13. The method of claim 11 , wherein the intercept is defined as a zero flow rate.

14. The method of claim 11 , further comprising displaying the histogram on a video display.

15. The method of claim 14 , further comprising displaying a scatter plot of the hydraulic fracturing treatment data and a hydraulic fracturing treatment chart in real time.

16. A system comprising:
a fluid handling system comprising:
a fluid supply vessel, wherein the fluid supply vessel is disposed on a surface;
pumping equipment, wherein the pumping equipment is fluidically connected to the fluid supply vessel and disposed on the surface;
a wellbore supply conduit, wherein the wellbore supply conduit is attached to the pumping equipment and disposed in a formation; and
a plurality of flowpath elements, wherein the flowpath elements fluidically couple the wellbore supply conduit to the formation; and

an information handling system configured to:
communicate with at least a pressure sensor and a flow rate sensor during a hydraulic fracturing operation;
plot hydraulic fracturing treatment data to form a plot of the hydraulic fracturing treatment data;
fit a function to the plot of the hydraulic fracturing treatment data;
determine an intercept of the function;
calculate one or more coefficients;
plot the one or more coefficients on a histogram; and
identify one or more active flowpath elements from the histogram, wherein the one or more active flowpath elements are one or more perforation holes or perforation clusters.

17. The system of claim 16 , wherein the plotting the hydraulic fracturing treatment data is a pressure in view of a flow rate.

18. The system of claim 16 , wherein the intercept is defined as a zero flow rate.

19. The system of claim 16 , further comprising displaying the histogram on a video display.

20. The system of claim 19 , further comprising displaying a scatter plot of the hydraulic fracturing treatment data and a hydraulic fracturing treatment chart in real time.

Assignees

• Halliburton Energy Services Inc

Inventors

• Martysevich Vladimir Nikolayevich
• Swaminathan Tirumani N
• Shetty Dinesh Ananda
• Ma Jianfu

Classifications

• E21B43/26 Primary

  by forming crevices or fractures · CPC title

• E21B47/06

  Measuring temperature or pressure · CPC title

• E21B47/117

  Detecting leaks, e.g. from tubing, by pressure testing · CPC title

• E21B49/087 Primary

  Well testing, e.g. testing for reservoir productivity or formation parameters · CPC title

• E21B2200/20

  Computer models or simulations, e.g. for reservoirs under production, drill bits · CPC title