An inspection device for inspecting a pipeline wall (30) is provided. The inspection device comprises a plurality of ultrasonic transducers (11, 12, 13, 14, 15), each of the ultrasonic transducers (11-15) being configured to emit a respective ultrasonic signal (100) along a respective pre-determined ultrasonic propagation direction (111, 121, 131, 141) in operation of the inspection device. The ultrasonic transducers (11-15) are arranged and/or adjusted such that, in operation of the inspection device a propagation direction angle (β12, β23, β34, β41, β15) between a first ultrasonic transducer (11, 13) of the plurality of ultrasonic transducers (11-15) and a second ultrasonic transducer (12, 14, 15) of the plurality of ultrasonic transducers (11-15) is less than 180°, the propagation direction angle (β12-β15) being the angle enclosed by an ultrasonic propagation direction (111, 131) of an ultrasonic signal (100) emitted by the first ultrasonic transducer (11, 13) and an ultrasonic propagation direction (121, 141) of an ultrasonic signal (100) emitted by the second ultrasonic transducer (12, 14, 15). Furthermore, methods for detecting a defect (31) in a pipeline wall (30) are provided.
G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details
2.
DETERMINING THE MECHANICAL STRESS IN PIPES USING MAGNETIC STRESS ANALYSIS
A method for determining mechanical stress in ferromagnetic pipes (10), wherein magnetic fields (23) are introduced into the pipe (10) wall at at least two different frequencies, the resulting magnetic field (15) is measured with a magnetic sensor (30) and then converted into a predictive value for the existing mechanical stress within the pipe (10), by using a predefined calibration method that analyses the magnetic field(s) measured at the different frequencies.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
G01L 1/12 - Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
3.
DETERMINING THE MECHANICAL STRESS IN PIPES USING MAGNETIC STRESS ANALYSIS
A method for determining mechanical stress in ferromagnetic pipes (10), wherein magnetic fields (23) are introduced into the pipe (10) wall at at least two different frequencies, the resulting magnetic field (15) is measured with a magnetic sensor (30) and then converted into a predictive value for the existing mechanical stress within the pipe (10), by using a predefined calibration method that analyses the magnetic field(s) measured at a specimen (11) at the different frequencies.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
G01L 1/12 - Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
A method for determining peaking in a pipeline involves measured values relating to the pipe internal geometry being recorded in proximity to a sought point P of the peaking, at which in particular a weld seam that is present there means that the measurement of more significant measured values is hampered or impossible, and a trend being determined from the measured values and the trend being used to determine a value of the peaking.
G01B 7/28 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures
G01B 7/312 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
G01B 7/34 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring roughness or irregularity of surfaces
G01B 11/12 - Measuring arrangements characterised by the use of optical techniques for measuring diameters internal diameters
G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
G01B 11/30 - Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details
G01N 29/265 - Arrangements for orientation or scanning by moving the sensor relative to a stationary material
The invention relates to a method for determining peaking of a pipeline, wherein measurement values of the internal geometry of the pipe are recorded adjacent to a searched point P of the peak, wherein the measurement of meaningful measurement values is made more difficult or impossible due to the weld seam that is present there, and wherein a trend is determined based on the measurement values and a value of the peaking is determined based on the trend.
G01B 7/28 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures
G01B 7/312 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
G01B 7/34 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring roughness or irregularity of surfaces
G01B 11/12 - Measuring arrangements characterised by the use of optical techniques for measuring diameters internal diameters
G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
G01B 11/30 - Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details
G01N 29/265 - Arrangements for orientation or scanning by moving the sensor relative to a stationary material
The present invention relates to a segment (16) for a sensor-carrier body (14) of a pig (10) for inspecting a pipeline (12), characterized in that the segment (16) has a supporting structure (18), on which at least one bar (20) with at least one ultrasonic transducer (22) is arranged, wherein the at least one bar (20) is releasably fastened to the supporting structure (18).
The present disclosure relates to a method for detecting a defect (16) in a pipeline wall (14) and a pipeline inspection device for being inserted into a pipeline. The method comprises the steps of arranging a first ultrasonic transducer (10) inside a pipeline at a finite stand-off distance (d-i) from the pipeline wall (14); emitting, by the first ultrasonic transducer (10), a first ultrasonic signal towards the pipeline wall (14) at a finite angle (a) relative to a normal of the pipeline wall (14), wherein the first ultrasonic signal excites at least one fundamental Lamb mode in the pipeline wall (14); and receiving, by the first ultrasonic transducer (10), a second ultrasonic signal from the surface of the pipeline wall (14), wherein the second ultrasonic signal is an echo signal generated by the at least one fundamental Lamb mode excited by the first ultrasonic signal and reflected from a defect (16) in the pipeline wall (14).
The invention relates, in a first aspect, to a method for inspecting an object, in particular a pipeline, for flaws, comprising: emitting a first signal toward the object in a first direction by means of a first ultrasonic transducer; and receiving a first response signal coming from the object from a second direction by means of a second ultrasonic transducer, wherein the first direction and the second direction are different from each other.
The invention relates to a system and a corresponding method for the inline inspection of pipelines. A pipeline inspection system according to the present invention comprises an inline inspection tool carrying an ultrasonic transducer system configured to emit ultrasonic energy pulses in response to electrical pulses and convert received ultrasonic energy into electrical signals; control circuitry coupled to the ultrasonic transducer system wherein the control circuitry is configured to control the ultrasonic transducer system and process signals received from the ultrasonic transducer system; and a gelled mass configured to form an elongated body surrounding the inline inspection tool during pipeline inspection.
G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details
G01N 29/265 - Arrangements for orientation or scanning by moving the sensor relative to a stationary material
G01N 29/28 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details providing acoustic coupling
10.
METHOD AND DEVICE FOR CHECKING AN OBJECT FOR FLAWS
The invention relates, in a first aspect, to a method for inspecting an object, in particular a pipeline, for flaws, comprising: emitting a first signal toward the object in a first direction by means of a first ultrasonic transducer; and receiving a first response signal coming from the object from a second direction by means of a second ultrasonic transducer, wherein the first direction and the second direction are different from each other.
G01N 29/11 - Analysing solids by measuring attenuation of acoustic waves
G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details
G01N 29/34 - Generating the ultrasonic, sonic or infrasonic waves
The invention relates to a device for examining a workpiece, wherein the device comprises a carrier; at least one transceiver, which is arranged on the carrier; and a protective device, which is designed to protect the at least one transceiver from soiling. The invention further relates to a system for examining a workpiece, comprising such a device.
G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details
G01N 29/32 - Arrangements for suppressing undesired influences, e.g. temperature or pressure variations
The invention relates to a connecting element for connecting two segments of a system for pipeline inspection in an articulated manner, comprising a first end (12, 72) and a second end (14, 74); a ball joint seat (16, 76) at the first end (12, 72), wherein a passage (18, 82), which passes through the ball joint seat (16, 76) and makes it possible to feed cables or hoses through from the first end (12, 72) to the second end (14, 74), extends between the first end (12, 72) and the second end (14, 74) and wherein a ball joint head (60, 78) to be mounted in the ball joint seat (16, 76) can be led into the passage (18, 82) at the first end (12, 72) of the connecting element (10, 70) and inserted into the ball joint seat (16, 76); at least one retaining element (26), which is designed to protrude into the passage (18, 82) in such a way that a cross-section of the passage (18, 82) is reduced only at a part of the edge of the cross-section that is associated with the retaining element.
F16G 13/16 - Hauling- or hoisting-chains with arrangements for holding electric cables, hoses, or the like
H02G 3/04 - Protective tubing or conduits, e.g. cable ladders or cable troughs
F16L 3/015 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets for supporting or guiding the pipes, cables or protective tubing, between relatively movable points, e.g. movable channels using articulated- or supple-guiding elements
F16L 1/18 - Laying or reclaiming pipes on or under water on the bottom the pipes being S- or J-shaped and under tension during laying
Device for controlling the speed of a pipe testing system, comprising an outer shell, a first inner shell and a second inner shell. The first inner shell has at least one recess, the second inner shell has at least one recess, and the outer shell has at least one recess, the first inner shell and the second inner shell each being adjustable in relation to the outer shell.
G01M 3/00 - Investigating fluid tightness of structures
F16L 55/38 - Constructional aspects of the propulsion means, e.g. towed by cables driven by fluid pressure
G01M 3/24 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
patents
