Assisted corrosion and erosion recognition

Patent metadata

Field	Value
Publication number	US-11959739-B2
Application number	US-202117169870-A
Country	US
Kind code	B2
Filing date	Feb 8, 2021
Priority date	Aug 22, 2019
Publication date	Apr 16, 2024
Grant date	Apr 16, 2024

Abstract

Systems, methods, and computer readable medium are provided for determining a wall loss measurement associated with corrosion and/or erosion present within an insulated pipe. A inspection image is acquired for a pipe wall of an insulated pipe at a first location and used to determine an inspection thickness of the pipe wall at the first location. An amount of wall loss measurement can be determined based on a difference of a nominal thickness for the pipe wall at the first location and the determined inspection thickness. The wall loss measurement can characterize an amount of wall material lost due to corrosion and/or erosion present in the pipe wall at the first location. The wall loss measurement can be output for further processing and/or display.

First claim

What is claimed is:

1. A method comprising:
acquiring an inspection image of a pipe wall of an insulated pipe at a first location;
determining, at the first location and based on the inspection image, an attenuation coefficient of an insulation of the insulated pipe at a first radial distance of the insulated pipe, an attenuation coefficient of the pipe wall at a second radial distance of the insulated pipe, and an attenuation coefficient of a fluid within the insulated pipe at a third radial distance of the insulated pipe;
determining an inspection thickness of the pipe wall at the first location based on applying the attenuation coefficient of the insulation, the attenuation coefficient of the pipe wall, and the attenuation coefficient of the fluid to the inspection image;
determining a wall loss measurement of the pipe wall at the first location, the wall loss measurement determined based on a difference of a nominal thickness of the pipe wall at the first location and the determined inspection thickness, the wall loss measurement characterizing an amount of wall loss in the insulated pipe at the first location; and
outputting the wall loss measurement.

2. The method of claim 1 , wherein the acquiring step is performed by a modular acquisition system including a radiographic source, a radiographic detector, and a crawler device including a data processor, a controller, and a plurality of positioning mechanisms configured to position the radiographic source and the radiographic detector at one or more locations along the length of the pipe.

3. The method of claim 2 , wherein the determining, and the outputting steps are performed by a processing system coupled to the acquisition system, the processing system being further coupled to a management system including computer-readable executable instructions, which when executed provide one or more applications configured with visualization and repair functionality associated with one or more pipes in an oil and gas production facility for which an amount of wall loss has been determined.

4. The method of claim 3 , wherein outputting the wall loss measurement includes transmitting the wall loss measurement to the management system and providing, by the management system, the wall loss measurement for display within the one or more applications configured with visualization and repair functionality.

5. The method of claim 4 , wherein the management system displays one or more wall lost measurements in a graphical overlay atop a three-dimensional computer-aided design model depicting one or more pipes associated with an oil and gas production facility.

6. The method of claim 3 , wherein outputting the wall loss measurement includes providing the wall loss measurement in a display of the processing system as a color map atop the inspection image of one or more pipes configured within an oil and gas production facility, the color map including one or more colors corresponding to one or more severity conditions associated with the amount of wall loss.

7. The method of claim 6 , wherein the color map includes a ruler having a scale of units extending from a null unit positioned at a location of the color map corresponding to a centerline of the insulated pipe.

8. The method of claim 6 , wherein the wall loss measurement is displayed in the color map based on correcting intensity variations in one or more portions of the inspection image.

9. The method of claim 1 , further comprising, in response to determining the wall loss measurement is indicative of a difference of pipe wall thickness at the first location as compared to the nominal thickness of the pipe wall at first location
automatically acquiring an inspection image of the pipe wall at a second location different than the first location;
determining an inspection thickness of the pipe wall at the second location;
determining a wall loss measurement of the pipe wall at the second location, the wall loss measurement determined based on a difference of a nominal thickness of the pipe wall at the second location and the determined inspection thickness, the wall loss measurement characterizing an amount of wall loss in the insulated pipe at the second location; and
outputting the wall loss measurement of the pipe wall at the second location.

10. The method of claim 9 , further comprising,
determining, at the second location and based on the inspection image acquired at the second location an attenuation coefficient of an insulation of the insulated pipe at a fourth radial distance of the insulated pipe, an attenuation coefficient of the pipe wall at a fifth radial distance of the insulated pipe, and an attenuation coefficient of a fluid within the insulated pipe at a sixth radial distance of the insulated pipe; and
determining the inspection thickness of the pipe wall at the second location based on applying the attenuation coefficient of the insulation, the attenuation coefficient of the pipe wall, and the attenuation coefficient of the fluid to the inspection image.

11. A system comprising:
a memory; and
a data processor, coupled to the memory, the data processor configured to perform operations including
acquiring an inspection image of a pipe wall of an insulated pipe at a first location;
determining, at the first location and based on the inspection image, an attenuation coefficient of an insulation of the insulated pipe at a first radial distance of the insulated pipe, an attenuation coefficient of the pipe wall at a second radial distance of the insulated pipe, and an attenuation coefficient of a fluid within the insulated pipe at a third radial distance of the insulated pipe;
determining an inspection thickness of the pipe wall at the first location based on applying the attenuation coefficient of the insulation, the attenuation coefficient of the pipe wall, and the attenuation coefficient of the fluid to the inspection image;
determining a wall loss measurement of the pipe wall at the first location, the wall loss measurement determined based on a difference of a nominal thickness of the pipe wall at the first location and the determined inspection thickness, the wall loss measurement characterizing an amount of wall loss in the insulated pipe at the first location; and
outputting the wall loss measurement.

12. The system of claim 11 , further comprising a modular acquisition system coupled to the data processor, the modular acquisition system including a radiographic source, a radiographic detector, and a crawler device including a data processor, a controller, and a plurality of positioning mechanisms configured to position the radiographic source and the radiographic detector at one or more locations along the length of the pipe, the modular acquisition system configured to acquire the calibration image and the inspection image of a pipe wall at the first location of the insulated pipe.

13. The system of claim 12 , wherein the data processor is coupled to the modular acquisition system by a wired or wireless communications interface.

14. The system of claim 12 , wherein the modular acquisition system includes a global positioning system configured to generate global positioning system coordinate data and the inspection image acquired at the first location includes the global positioning system coordinate data corresponding the first location at which the inspection image was acquired.

15. The system of claim 11 , wherein outputting the wall loss measurement for display includes providing the wall loss measurement in a display, coupled to the data processor, as a color map atop the inspection image of o

Assignees

• Baker Hughes Oilfield Operations Llc

Inventors

• Sheri George
• K Rasindh K
• Umer Mohammed
• Behari Vikash
• Vochten Joris

Classifications

• G01B15/025 Primary

  by measuring absorption · CPC title

• F16L58/00

  Protection of pipes or pipe fittings against corrosion or incrustation (compound tubes F16L9/14) · CPC title

• G01N23/18

  Investigating the presence of flaws defects or foreign matter · CPC title

• F16L2101/30

  Inspecting, measuring or testing · CPC title

• G06T7/001 Primary

  using an image reference approach · CPC title