IP Library Granted Patent US 12,379,075
Granted Patent B2
US 12,379,075 · App. 18/335,483 · Granted Aug 5, 2025

Real time integrity monitoring of on-shore pipes

Inventors: Andrew David Ethridge (Houston, TX); Alexander Lee Winn (Kingwood, TX)
Assignee: FlexSteel USA, LLC
F17D5/02F17D1/04F17D1/05F17D1/08F17D1/18F17D3/01F17D5/005F17D5/04F17D5/06G01M3/002G01M3/18G01M3/2815G01N25/12G01N27/20G01N33/225G01N33/2811
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Quick Facts
Patent No.
US 12,379,075
App. No.
18/335,483
Granted
Aug 5, 2025
Kind
B2
Abstract

A method includes providing a length of pipeline that has a housing defining a central bore extending the length of the pipe and a space formed within the housing and extending the length of the pipe. At least one condition within the space is continuously monitored within the space to detect in real time if a change in the housing occurs.

Claims (59)

1. A pipeline system, comprising:

a pipe segment, wherein the pipe segment comprises:

an inner layer formed to define a pipe bore;

an outer layer formed around the inner layer; and

one or more intermediate layers formed between the inner layer and the outer layer to define open space that extends within an annulus of the pipe segment;

a pressure transducer configured to monitor fluid pressure within the open space defined in the annulus of the pipe segment to facilitate detecting a real time condition of the pipe segment; and

a computing device communicatively coupled to the pressure transducer, wherein:

the pressure transducer is configured to generate a signal indicative of the fluid pressure within the open space defined in the annulus of the pipe segment; and

the computing device is configured to determine whether a breach is present in the inner layer or the outer layer of the pipe segment based at least in part on the signal indicative of the fluid pressure within the open space defined in the annulus of the pipe segment.

2. The pipeline system of claim 1 , wherein the one or more intermediate layers of the pipe segment comprise a plurality of strips helically wound around the inner layer of the pipe segment such that the open space in the annulus of the pipe segment is defined with a helical shape.

3. The pipeline system of claim 1 , comprising a fluid source configured to fill the open space defined within the annulus of the pipe segment with fluid.

4. The pipeline system of claim 1 , comprising a pipe joint, wherein the pipe joint comprises:

a body formed to define a joint bore; and

a jacket circumferentially secured to the body such that the jacket extends axially along the body to define an annular space, wherein:

the pipe segment is configured to be disposed within the annular space of the pipe joint; and

the jacket of the pipe joint is configured to be radially deformed around the pipe segment to facilitate securing the pipe joint to the pipe segment such that the pipe bore of the pipe segment is fluidly connected to the joint bore of the pipe joint.

5. The pipeline system of claim 4 , comprising another pipe segment, wherein:

the another pipe segment comprises:

another inner layer formed to define another pipe bore;

another outer layer formed around the another inner layer; and

another one or more intermediate layers formed between the another inner layer and the another outer layer to define other open space that extends within another annulus of the another pipe segment; and

the pipe joint comprises another jacket circumferentially secured to the body such that the another jacket extends axially around the body to define another annular space, wherein:

the another pipe segment is configured to be disposed within the another annular space of the pipe joint; and

the another jacket of the pipe joint is configured to be radially deformed around the another pipe segment to facilitate securing the pipe joint to the another pipe segment such that the joint bore of the pipe joint is fluidly connected to the another pipe bore of the another pipe segment.

6. The pipeline system of claim 4 , wherein the pressure transducer is configured to be fluidly coupled to a vent port on the pipe joint that opens to the annular space defined in the pipe joint.

7. The pipeline system of claim 1 , comprising:

a temperature sensor configured to monitor temperature of the pipe segment; and

a power source configured to selectively supply electrical power to electrically conductive material in the one or more intermediate layers of the pipe segment to facilitate heating the pipe segment based at least in part on the temperature of the pipe segment.

8. The pipeline system of claim 1 , wherein the computing device is configured to indicate that a breach is present in the inner layer or the outer layer of the pipe segment when the signal is indicative of the fluid pressure within the open space defined in the annulus of the pipe segment changing by more than a threshold amount.

9. The pipeline system of claim 3 , wherein the fluid source is configured to supply nitrogen gas to the open space defined within the annulus of the pipe segment.

10. A pipeline monitoring method, comprising:

filling with fluid open space that is defined in an annulus of a pipe segment by one or more intermediate layers of the pipe segment that are formed between an inner layer and an outer layer of the pipe segment, wherein the inner layer of the pipe segment defines a pipe bore;

monitoring, using a pressure transducer, fluid pressure within the open space defined in the annulus of the pipe segment to enable a condition of the pipe segment to be detected in real time; and

detecting, using a computing device communicatively coupled to the pressure transducer, the condition of the pipe segment, wherein:

monitoring the fluid pressure within the open space defined in the annulus of the pipe segment comprises generating, using the pressure transducer, a signal indicative of the fluid pressure within the open space defined in the annulus of the pipe segment; and

detecting the condition of the pipe segment comprises detecting the condition of the pipe segment based at least in part on the signal indicative of the fluid pressure within the open space defined in the annulus of the pipe segment at least in part by detecting a breach in the inner layer or the outer layer of the pipe segment in response to detecting that the signal is indicative of the fluid pressure within the open space defined in the annulus of the pipe segment changing by more than a threshold amount.

11. The pipeline monitoring method of claim 10 , wherein:

the one or more intermediate layers of the pipe segment comprise a plurality of strips helically wound around the inner layer to define helically-shaped open space within the annulus of the pipe segment; and

filling the open space defined in the annulus of the pipe segment with fluid comprises filling the helically-shaped open space defined within the annulus of the pipe segment with fluid.

12. The pipeline monitoring method of claim 10 , comprising:

monitoring, using a temperature sensor, temperature of the pipe segment; and

supplying, using a power source, electrical power to electrically conductive material in the one or more intermediate layers of the pipe segment to facilitate heating the pipe segment in response to detecting that the temperature of the pipe segment falls to a temperature threshold.

13. The pipeline monitoring method of claim 10 , wherein filling with fluid the open space defined in the annulus of the pipe segment comprises pumping fluid from a fluid source to the open space defined in the annulus of the pipe segment.

14. A pipeline monitoring system, comprising:

a fluid source configured to supply fluid to open space defined within an annulus of a pipe segment by one or more intermediate layer of the pipe segment that are formed between an inner layer and an outer layer of the pipe segment;

a pressure transducer configured to monitor fluid pressure within the open space defined in the annulus of the pipe segment to facilitate detecting a condition of the pipe segment in real time; and

a computing device communicatively coupled to the pressure transducer, wherein:

the pressure transducer is configured to generate a signal indicative of the fluid pressure within the open space defined in the annulus of the pipe segment; and

the computing device is configured to detect that a breach is present in the inner layer or the outer layer of the pipe segment when the signal is indicative of the fluid pressure within the open space defined in the annulus of the pipe segment changing by more than a threshold amount.

15. The method of claim 10 , wherein filling with fluid the open space defined in the annulus of the pipe segment comprises supplying nitrogen gas from a fluid source to the open space defined in the annulus of the pipe segment.

16. The pipeline monitoring system of claim 14 , comprising a display configured to display a visual representation of the fluid pressure within the open space defined in the annulus of the pipe segment.

17. The pipeline monitoring system of claim 14 , wherein:

the one or more intermediate layers of the pipe segment comprise a plurality of strips helically wound around the inner layer of the pipe segment to define helically-shaped open space in the annulus of the pipe segment; and

the fluid source is configured to supply fluid to the helically-shaped open space defined in the annulus of the pipe segment.

18. The pipeline monitoring system of claim 14 , comprising a pump configured to pump fluid from the fluid source to the open space defined within the annulus of the pipe segment.

19. The pipeline monitoring system of claim 14 , wherein the fluid source is configured to supply nitrogen gas to the open space defined within the annulus of the pipe segment.

20. The pipeline monitoring system of claim 14 , comprising:

a temperature sensor configured to monitor temperature of the pipe segment; and

a power source configured to supply electrical power to electrically conductive material in the one or more intermediate layer of the pipe segment to facilitate heating the pipe segment when the temperature of the pipe segment falls to a threshold temperature.

Assignments (4)
SECURITY INTEREST Recorded Dec 2, 2025
From: CACTUS WELLHEAD, LLC; FLEXSTEEL USA, LLC
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 073804/0497 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 21, 2025
From: FLEXSTEEL PIPELINE TECHNOLOGIES, LLC
To: FLEXSTEEL USA, LLC
Reel/Frame 069964/0367 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 5, 2024
From: TRINITY BAY EQUIPMENT HOLDINGS, LLC
To: FLEXSTEEL PIPELINE TECHNOLOGIES, LLC
Reel/Frame 068326/0846 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 5, 2024
From: TRINITY BAY EQUIPMENT HOLDINGS, LLC
To: FLEXSTEEL PIPELINE TECHNOLOGIES, LLC
Reel/Frame 068327/0863 →