CN214122050U - Pipe rod flaw detection device for drilling/workover operation - Google Patents

Abstract

The utility model relates to a bore/workover tubular pole detection device that detects a flaw, the utility model discloses a detect a flaw and detect the body, detect a flaw and detect this internal hollow structure that is, detect a flaw and detect the body and be eddy current magnetic leakage and detect a flaw, ultrasonic inspection, radiographic inspection or magnetic flaw detection. The utility model discloses can realize the on-the-spot flaw detection, the operating efficiency is high.

Description

Pipe rod flaw detection device for drilling/workover operation

Technical Field

The utility model relates to a mechanized workover equipment of oil industry, specifically speaking are brill/workover tubular pole detection device that detects a flaw.

Background

In the process of oil exploitation in China, the oil well pump oil well accounts for more than 90% of the mechanical oil well, and the oil pipe and the sucker rod are necessary for the oil well pump oil well. The repair and recycling of the oil pipe and the rod are important measures for reducing the comprehensive production cost of an oil production plant, but the failure of the oil pipe and the rod is one of the main reasons for pump detection of an oil pumping well, and the economic loss reaches billions of yuan every year in China. Therefore, the repair quality of the oil pipe rod is improved, the pump inspection period can be prolonged, the operation rework is reduced, and the operation cost is reduced. The flaw detection is used as an important process in the oil pipe rod repairing detection line, can accurately and effectively detect the manufacturing and using defects of the inner wall, the outer wall and the pipe rod body of the oil pipe rod, and ensures the repairing quality of the oil pipe rod.

The current industrial continuous automatic flaw detection methods mainly include penetration, ultrasound, eddy current, magnetic flux leakage and the like. However, these inspection methods can be performed only in a pipe rod cleaning plant, and the inspection work is performed in a well repair site without any condition, and the pipe rods must be loaded and transported to the cleaning plant, which results in a long inspection cycle, high cost, and low efficiency.

Therefore, the prior operation mode has the following defects:

1. the pipe pole can not detect flaws in field operation.

2. The loading and conveying of the pipe rods to a cleaning plant for flaw detection have high cost, low efficiency and long period.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the technical problem who exists among the background art, and provide one kind and can realize the on-the-spot detection of detecting a flaw, drilling/workover operation pipe pole detection device that operating efficiency is high.

The technical solution of the utility model is that: the utility model relates to a bore/workover operation tubular pole detection device that detects a flaw, its special character lies in: the flaw detection device comprises a flaw detection body, wherein the inside of the flaw detection body is of a hollow structure, and the flaw detection body is eddy current magnetic flux leakage flaw detection, ultrasonic flaw detection, radiographic flaw detection or magnetic flaw detection.

Preferably, when the flaw detection body is eddy current magnetic flux leakage flaw detection, the flaw detection body is a magnetizing coil, and a strip array probe is arranged in the flaw detection body.

Preferably, when the flaw detection body is an ultrasonic flaw detector, the flaw detection body is an ultrasonic generator.

Preferably, when the flaw detection body is used for radiographic inspection, a transmitting probe and a receiving probe are respectively arranged on the outer side of the flaw detection body, the transmitting probe is connected with the oscillator, and the receiving probe is connected with the indicator.

Preferably, the flaw detection device further comprises an amplifier, and the receiving probe is connected with the indicator through the amplifier.

Preferably, the indicator is an electricity meter or an oscilloscope.

Preferably, when the flaw detection body is used for magnetic flaw detection, the flaw detection body is internally provided with a permanent magnet.

Preferably, the permanent magnet is divided into two sections which are respectively arranged at two ends of the inner side of the flaw detection body.

Preferably, the flaw detection body is of a circular ring structure.

The utility model has the advantages of it is following:

1. flaw detection operation can be carried out on the well repairing site;

2. the pipe rod does not need to be conveyed to a cleaning plant for flaw detection, so that various expenses are saved;

3. flaw detection is carried out when the pipe rod is sent back to the wellhead, so that the operation efficiency is improved, and a large amount of time is saved.

Drawings

FIG. 1 is a schematic structural view of the eddy current magnetic flux leakage inspection apparatus of the present invention;

FIG. 2 is a schematic structural view of the ultrasonic flaw detection system of the present invention;

FIG. 3 is a schematic diagram of the operation of FIG. 2;

FIG. 4 is a schematic structural view of the present invention using radiographic inspection;

FIG. 5 is a schematic structural view of the magnetic flaw detector of the present invention;

fig. 6 is a schematic view of the application of the present invention.

1. The device comprises a flaw detection body, 2, a strip array probe, 3, a pipe rod, 4, a transmitting probe, 5, a receiving probe, 6, a permanent magnet, 7, a pipe rod conveying device, 8, a power carrier roller, 9 and a pipe rod storage box.

Detailed Description

The following will specifically describe the general scheme of the present invention with reference to fig. 1, 2, 3, 4, 5, and 6:

referring to fig. 1, the utility model discloses a detect the detection body 1, be hollow structure in detecting the body 1 of detecting a flaw, in this embodiment, detect the detection body 1 of detecting a flaw and be magnetizing coil, be provided with strip array probe 2 in detecting the body 1 of detecting a flaw, survey time measuring, pipe pole 3 stretches in detecting the body 1 of detecting a flaw, and it is good to detect the detection body 1 of detecting a flaw with the ring structure.

Eddy current magnetic leakage flaw detector principle: alternating current is supplied to a magnetizing coil, and the current passing through the magnetizing coil is constant under certain conditions. If the magnetizing coil is close to the workpiece to be measured, eddy current can be induced in the workpiece like a ship in water, and the coil current can be changed under the influence of the eddy current. Since the magnitude of the eddy current varies with the presence or absence of a defect in the workpiece, the magnitude of the change in the coil current reflects the presence or absence of a defect.

Referring to fig. 2, the utility model discloses a detect the body 1, detect and be hollow structure in detecting the body 1, in this embodiment, detect that the body 1 is ultrasonic generator, surveys time measuring, and pipe pole 3 stretches in detecting the body 1 that detects a flaw, and it uses the ring structure to detect the body 1 and be good to detect a flaw.

Referring to fig. 3, the ultrasonic flaw detection principle: ultrasonic waves have various modes when propagating in a medium, and longitudinal waves, transverse waves, surface waves and plate waves are most commonly used in inspection. The longitudinal wave can be used for detecting the defects of inclusions, cracks, pipe shrinkage, white spots, layering and the like in metal cast ingots, blanks, medium plates, large forgings and parts with simpler shapes; the transverse wave can be used for detecting the defects of circumferential and axial cracks, scratches, air holes in welding seams, slag inclusion, cracks, incomplete penetration and the like in the pipe; surface defects on a simply shaped casting can be detected with surface waves; defects in the sheet can be detected with plate waves.

Referring to fig. 4, the utility model discloses a detect the body 1, detect and be hollow structure in the body 1, in this embodiment, detect and set up transmitting probe 4 and receiving probe 5 respectively outside detecting the body 1, transmitting probe 4 connects the oscillator, and receiving probe 5 connects the indicator. The flaw detection device also comprises an amplifier, the receiving probe 5 is connected with an indicator through the amplifier, and the indicator is an ammeter or an oscilloscope. During detection, the pipe rod 3 extends into the flaw detection body 1, and the flaw detection body 1 is preferably of a circular ring structure.

The principle of ray inspection: the thickness or density of each part of the object to be measured is different due to the existence of defects by using the difference in intensity attenuation of the X-ray or gamma ray when the X-ray or gamma ray penetrates each part of the object to be measured.

Referring to fig. 5, the flaw detection body 1 is included, the inside of the flaw detection body 1 is a hollow structure, in this embodiment, a permanent magnet 6 is disposed in the flaw detection body 1, during detection, the pipe rod 3 extends into the flaw detection body 1, the flaw detection body 1 is preferably a circular ring structure, the permanent magnet 6 is two sections, which are respectively disposed at two ends of the inner side of the flaw detection body 1, and the permanent magnet 6 is preferably a circular ring structure.

Magnetic flaw detection principle: after the workpiece made of ferromagnetic material is magnetized, the magnetic lines of force on the surface and near the surface of the defect are deformed, and the magnetic lines of force escape from the surface of the workpiece to form a leakage magnetic field, and the leakage magnetic field is detected by the method, so that the position of the defect is determined.

Referring to fig. 6, the utility model discloses during the specific application, detect a flaw detection body 1 and fix in pipe pole storage box 9 one side, be detachable construction.

When the pipe pole 3 transports out of the pipe pole storage box 9 through the power carrier roller 8, the flaw detection body 1 is detected, and finally the pipe pole is conveyed to a wellhead and sent to the underground through the pipe pole conveying device 7. The flaw detection data are summarized, recorded, automatically counted, printed, verified and traceable.

The utility model discloses in the preferred embodiment, also can use the device of detecting a flaw of above four kinds of structures of detecting a flaw arbitrary combinations, improve and detect the rate of accuracy, during the use, with the concentric interval setting of the device of detecting a flaw of each structure of detecting a flaw can.

The above is only the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and the scope of the present disclosure should be subject to the protection scope of the claims.

Claims (7)

1. The utility model provides a drilling/workover tubular pole detection device that detects a flaw which characterized in that: the flaw detection device comprises a flaw detection body, wherein a hollow structure is arranged in the flaw detection body, the flaw detection body is eddy current magnetic leakage flaw detection, radiographic inspection or magnetic flaw detection, when the flaw detection body is eddy current magnetic leakage flaw detection, the flaw detection body is a magnetizing coil, and a strip array probe is arranged in the flaw detection body.

2. The apparatus of claim 1, wherein the apparatus comprises: when the flaw detection body is used for radiographic inspection, a transmitting probe and a receiving probe are respectively arranged on the outer side of the flaw detection body, the transmitting probe is connected with an oscillator, and the receiving probe is connected with an indicator.

3. The apparatus of claim 2, wherein: the flaw detection device also comprises an amplifier, and the receiving probe is connected with the indicator through the amplifier.

4. The apparatus of claim 3, wherein the apparatus comprises: the indicator is an ammeter or an oscilloscope.

5. The apparatus of claim 1, wherein the apparatus comprises: when the flaw detection body is used for magnetic flaw detection, a permanent magnet is arranged in the flaw detection body.

6. The apparatus of claim 5, wherein: the permanent magnet is divided into two sections which are respectively arranged at two ends of the inner side of the flaw detection body.

7. The pipe pole flaw detection device for drilling/workover treatment according to any one of claims 1 to 6, wherein: the flaw detection body is of a circular ring structure.

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