Method and system for localizing and correlating leaks in fluid conveying conduits

• US 6,530,263 B1
• Filed: 01/30/2001
• Issued: 03/11/2003
• Est. Priority Date: 09/29/2000
• Status: Expired due to Fees

• Current Assignee: Radcom Technologies Ltd. (Halma PLC)
• Original Assignee: Radcom Technologies Ltd. (Halma PLC)
• Inventors: Chana, Gurcharan Singh
• Primary Examiner(s): Williams, Hezron
• Assistant Examiner(s): WIGGINS, JOHN DAVID
• Application Number:
  US09/772,589
• Time in Patent Office: 770 Days
• Field of Search: 73/405.R, 73/405.A, 735/92
• US Class Current: 73/40.50R
• CPC Class Codes: F17D 5/06 using electric or acoustic means
• CPC Class Codes: G01M 3/243 for pipes

Abstract

A system for localizing and correlating leaks in a pipeline includes a plurality of loggers for detecting and storing sound data, an interface unit removably connected to the plurality of loggers and a computer system removably connected to the interface unit. Each logger includes a housing and electronics disposed within the housing, the electronics comprising a microprocessor for controlling the operation of the logger, a battery source for powering the logger, a sound sensor for detecting sound data and data storage circuitry for storing sound data detected by the sound sensor. In use, the plurality of loggers are disposed along the pipeline and are programmed to record sound data. The sound data recorded by the plurality of loggers is downloaded onto the computer system which, in turn, localizes and correlates any leaks present in the pipeline.

Claims

1. A system for localizing and correlating to pinpoint at least one leak in at least one fluid conveying conduit, said system comprising:

(a) first and second loggers which are positioned along the fluid conveying conduit in a spaced apart relationship, each of said first and second loggers forming a single, self-contained unit, said first and second loggers being adapted to detect and store sound data produced within the at least one fluid conveying conduit,

(b) an interface unit removably connected to said first and second loggers, and

(c) a computer system removably connected to said interface unit, wherein the sound data stored by said first and second loggers is capable of being downloaded onto said computer system, said computer system being capable of using the sound data to localize and correlate the at least one leak in the at least one conduit.

2. The system of claim 1 wherein said first logger comprises,

(a) a housing shaped to define an enclosed interior cavity, and

(b) electronics disposed within the interior cavity of said housing for detecting and storing sound data produced within the at least one fluid conveying conduit.

3. The system of claim 2 wherein said first logger comprises a magnetic coupling mounted on said housing for retaining said first logger onto the at least one fluid conveying conduit.

4. The system of claim 2 wherein said first logger comprises a communications connector mounted on said housing, the communications connector being connected to said electronics and said interface unit.

5. The system of claim 2 wherein said electronics comprises,

(a) a microprocessor for controlling the operation of said first logger,

(b) a battery source connected to said microprocessor for powering said first logger,

(c) a sound sensor connected to said microprocessor for detecting sound data produced within the at least one fluid conveying conduit, and

(d) data storage circuitry connected to said microprocessor for storing sound data detected by said sound sensor.

6. A logger for use in localizing and correlating at least one leak in at least one fluid conveying conduit, said logger comprising,

(a) a housing shaped to define an enclosed interior cavity, and

(b) electronics disposed within the interior cavity of said housing for detecting and storing sound data produced within the at least one fluid conveying conduit.

7. The logger of claim 6 further comprising a magnetic coupling mounted on said housing for retaining said first logger onto the at least one fluid conveying conduit.

8. The logger of claim 6 further comprising a communications connector mounted on said housing, the communications connector being electrically connected to said electronics.

9. The logger of claim 6 wherein said electronics comprises,

(a) a microprocessor for controlling the operation of said logger,

(b) a battery source connected to said microprocessor for powering said logger,

(c) a sound sensor connected to said microprocessor for detecting and amplifying sound data produced within the at least one fluid conveying conduit, and

(d) data storage circuitry connected to said microprocessor for storing sound data detected by said sound sensor.

10. The method for correlating the at least one leak in at least one fluid conveying conduit using a plurality of sound data loggers, each of said first and second loggers forming a single, self-contained unit, each sound data logger being adapted to detect and store sound data produced within the at least one fluid conveying conduit, said method comprising the steps of:

(a) programming the plurality of sound data loggers to detect and store sound data,

(b) deploying the plurality of sound data loggers along the at least one fluid conveying conduit in a spaced apart relationship,

(c) detecting and storing sound data produced within the at least one fluid conveying conduit using the plurality of sound data loggers,

(d) retrieving the sound data loggers from the at least one fluid conveying conduit, and

(e) correlating the at least one leak in the at least one fluid conveying conduit using the sound data stored in the plurality of sound data loggers.

11. The method of claim 10 wherein the correlation step accurately pinpoints the at least one leak in the at least one fluid conveying conduit using the sound data stored in the plurality of sound data loggers.

12. The method of claim 10 wherein the plurality of sound data loggers detect and store data in multiple, pre-determined time periods.

13. The method of claim 10 wherein the correlation step and the detecting and storing step are performed at different times.

14. The method of claim 10 further comprising the step of determining the topography of the at least one fluid conveying conduit using the sound data stored in the plurality of sound data loggers.

15. The method of claim 10 wherein the plurality of sound data loggers asynchronously detect and store sound data produced within the at least one fluid conveying conduit.

16. The method of claim 15 wherein the sound data stored by said plurality of sound data loggers can be synchronized to an accuracy of approximately 1 millisecond.

17. A system for localizing and correlating to pinpoint at least one leak in a multi-dimensional fluid conveying conduit having multiple sections, said system comprising:

(a) a plurality of loggers which are positioned along the multiple sections of the fluid conveying conduit in a spaced apart relationship, said plurality of loggers being adapted to detect and store sound data produced within the fluid conveying conduit,

(b) an interface unit removably connected to said plurality of loggers, and

(c) a computer system removably connected to said interface unit, wherein the sound data stored by said plurality of loggers is capable of being downloaded onto said computer system, said computer system being capable of using the sound data to localize and correlate the at least one leak in the fluid conveying conduit.

18. A system for localizing and correlating to pinpoint at least one leak in at least one fluid conveying conduit, said system comprising:

(a) first and second loggers which are positioned along the fluid conveying conduit in a spaced apart relationship, said first and second loggers being adapted to detect and store sound data produced within the at least one fluid conveying conduit, said first logger comprising,

(i) a housing shaped to define an enclosed interior cavity, and

(ii) electronics disposed within the interior cavity of said housing for detecting and storing sound data produced within the at least one fluid conveying conduit, said electronics comprising,

(A) a microprocessor for controlling the operation of said first logger,

(B) a battery source connected to said microprocessor for powering said first logger,

(C) a sound sensor connected to said microprocessor for detecting sound data produced within the at least one fluid conveying conduit,

(D) data storage circuitry connected to said microprocessor for storing sound data detected by said sound sensor,

(E) signal conditioning and filtering circuitry for conditioning and filtering sound data detected by said sound sensor, said sound sensor being connected to said microprocessor through said signal conditioning and filtering circuitry,

(F) a real time clock connected to said microprocessor,

(G) a counter connected to said real time clock and said microprocessor, and

(H) a temperature sensor connected to said real time clock and said microprocessor,

(b) an interface unit removably connected to said first and second loggers, and

(c) a computer system removably connected to said interface unit, wherein the sound data stored by said first and second loggers is capable of being downloaded onto said computer system, said computer system being capable of using the sound data to localize and correlate the at least one leak in the at least one conduit.

19. A logger for use in localizing and correlating at least one leak in at least one fluid conveying conduit, said logger comprising:

(a) a housing shaped to define an enclosed interior cavity, and

(a) electronics disposed within the interior cavity of said housing for detecting and storing sound data produced within the at least one fluid conveying conduit, said electronics comprising,

(i) a microprocessor for controlling the operation of said logger,

(ii) a battery source connected to said microprocessor for powering said logger,

(iii) a sound sensor connected to said microprocessor for detecting and amplifying sound data produced within the at least one fluid conveying conduit,

(iv) data storage circuitry connected to said microprocessor for storing sound data detected by said sound sensor,

(v) signal conditioning and filtering circuitry for conditioning and filtering sound data detected by said sound sensor, said sound sensor being connected to said microprocessor through said signal conditioning and filtering circuitry,

(vi) a real time clock connected to said microprocessor,

(vii) a counter connected to said real time clock and said microprocessor, and

(viii) a temperature sensor connected to said real time clock and said microprocessor.