摘要:
A probe device (19) for a rotating head (18) of a rotary system comprises at least one support arm (20, 21) that is mounted so as to be rotatable about an axis of rotation (22), at least one probe (23) that is connected to the support arm (20, 21), and at least one cable guide for guiding a probe cable. The cable guide comprises a first end portion (25) that extends along the support arm (20, 21), from the probe (23) to the axis of rotation (22), and a second end portion (26) that originates essentially at the axis of rotation (22).
摘要:
An instrument pig and method of operation thereof for determining the characteristics of a ferromagnetic pipeline through which it passes, including a pig body, first and second coaxial circumferential, spaced apart magnets of opposed polarities supported to the pig body and providing substantially complete magnetic saturation of an area of the pipeline between the magnets, first instruments between the magnets arranged to generate signals that are responsive to flux leakage providing first information as to anomalies in the pipeline interior and/or exterior surfaces, second instruments supported by the pig body between the magnets and arranged to generate signals that are responsive to eddy currents induced in the pipeline interior surface providing second information as to anomalies in the pipeline interior surface, signal processing circuitry combining the first and second signals and wherein the second instruments are energized only in response to signals generated by the signal processing circuitry.
摘要:
This invention relates to a method for assessing the condition of at least a portion of a pipeline to predict the possibility of occurrence of leakage from the pipeline. The method includes the steps of identifying at least one portion of the pipeline to be assessed, undertaking an assessment of the wall of the portion to identify defects located thereon and the assessment includes identifying the depth, width and length of identified defects and including reference to a value for the pressure of the fluid passing through the pipeline portion. This allows the condition of the pipeline at the portions of the same which are most critical to be identified and this is used to provide an indication of the pipeline as a whole without the need to investigate the entire pipeline.
摘要:
An inspection apparatus (300), including an extendable structure (302), an inspection probe (304), a drive (316), a sensor (530), and a processor (520). The extendable structure includes an end fixed to the inspection probe and insertable into a gap (110) defined between a first surface (102) and a second surface (104). The extendable structure is configured to maintain physical contact with the first surface as the end transitions across the first surface. The drive is configured to position the inspection probe. The current sensor is coupled to the drive and configured to measure a drive load over a period of time the inspection probe transitions across the first surface. The processor is coupled to the sensor and is configured to receive a signal associated with the drive load corresponding to movement of the inspection probe, and determine an operating condition of the extendable structure based on the drive load signal.
摘要:
Disclosed is a magnetic flaw detection device and a magnetic flaw detection method which are configured to: apply a magnetic field to an inspection target object; detect magnetism at a plurality of mutually different first detection positions from an exterior surface of the inspection target object, and, based on respective detection results at the first detection positions, derive a position of a given defect in the inspection target object, along a first direction causing a distance with respect to the inspection target object to gradually increase or decrease.
摘要:
The present invention is directed to a system and a method for inspecting a subsea pipeline. The method comprises the steps: detecting a defect along the subsea pipeline using a subsea magnetometric tomography method (MTM) module adjacent the subsea pipeline; and determining a position of the subsea MTM module, thereby determining the position of the defect. The method further comprises determining the position of the subsea MTM module relative to a surface vessel; and determining an absolute position of the surface vessel.