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COMBINED MAGNETIC FLUX LEAKAGE AND ACOUSTIC RESONANCE INSPECTION OF PIPELINE SYSTEMS

IP.com Disclosure Number: IPCOM000246826D
Publication Date: 2016-Jul-05
Document File: 27 page(s) / 1M

Publishing Venue

The IP.com Prior Art Database

Abstract

In accordance with an embodiment, a method for inspecting pipe is provided. The method includes receiving magnetic flux leakage (MFL) data from an MFL system, and receiving acoustic resonance (AR) data from an AR system. The method also includes correlating the MFL data and the AR data to a position in a pipe disposed in the pipeline system, and deriving a pipe condition by combining the MFL data with the AR data.

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COMBINED MAGNETIC FLUX LEAKAGE AND ACOUSTIC RESONANCE INSPECTION OF PIPELINE SYSTEMS

BACKGROUND

Certain equipment and  facilities  utilize  pipeline  systems  having  ferrous pipes or conduits to transport fluids, e.g. hydrocarbonic fluids, over distances. However, moisture may traverse into the ferrous pipes, leading to corrosion, pitting, and other unwanted conditions. Corrosion, pitting, and other undesired conditions can also occur within a pipe. Visual inspection of the interior of the pipe may be very difficult. In some pipeline systems, the ferrous pipe may include long “runs” having, tens, hundreds, if not thousands of miles. The need thus exists for improved systems and methods for inspecting for certain conditions and anomalies within a pipeline system.

The subject matter disclosed herein relates to magnetic flux leakage techniques combined with acoustic resonance techniques as applied to inspection of pipeline systems.

Certain embodiments commensurate in scope with the disclosure are summarized below. These embodiments are not intended to limit the scope of the disclosure, but rather these embodiments are intended only to provide a brief summary of possible forms of the disclosed subject matter. Indeed, the disclosed subject matter may encompass a variety of forms that may be similar to or different from the embodiments set forth below.

In accordance with  a first embodiment, a method for inspecting pipe  is provided. The method includes receiving magnetic flux leakage (MFL) data from an MFL system, and receiving acoustic resonance (AR) data from an AR system. The method also includes correlating the MFL data and the AR data to a position in a pipe disposed in the pipeline system, and deriving a pipe condition by combining the MFL data with the AR data.

In accordance with  a  second  embodiment,  a  system  is  provided.  The system includes a magnetic flux leakage (MFL) system and an acoustic resonance (AR) system.  The system further includes a processor.   The processor is configured to receive MFL data from the MFL system, and to receive AR data from the AR system. The processor is further configured to correlate the MFL data and the AR data to a position in a pipe disposed in the pipeline system, and to derive a pipe condition by combining the MFL data with the AR data.

BRIEF DESCRIPTION OF THE DRAWINGS

These and other features, aspects, and advantages of the disclosed subject matter will become better understood when the following detailed description is read with reference to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein:

FIG. 1 is a block diagram of an embodiment of a pipeline system having a pipeline inspection system;

FIG. 2 is a cross-sectional view of an embodiment of an ideal region of interest for observation via an MFL system;

FIG. 3 is a cross-sectional view of an embodiment of a “real” region of interest for observation via an MFL...