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Oil pipe online cleaning and flaw detection device

A technology of flaw detection device and cleaning device, which is applied in the direction of cleaning equipment, flushing wellbore, measurement, etc., can solve the problems of affecting the operation of connecting a single piece of tubing, high labor intensity, and many procedures, so as to improve the efficiency of workover operations and avoid surrounding Environmental pollution and the effect of improving the working environment

Pending Publication Date: 2019-08-27
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the oil pipe is generally taken out from the well in the construction, and the centralized cleaning, flaw detection inspection and passing procedures are completed on the ground. There are problems such as the sewage generated by the cleaning cannot be treated, the process is too many, and the labor intensity is high, which cannot meet the increasingly stringent safety and environmental protection requirements. Cleaning Requirements
[0003] At present, domestic oil pipe rod cleaning and flaw detection devices have single functions, and cannot realize flaw detection while cleaning
The oil pipe cleaning device involved in the patent No. "CN201720712647.6" realizes the cleaning of the outer wall of the oil pipe, but cannot simultaneously perform oil pipe flaw detection monitoring
The patent number is: CN201610560006.3 involves a oil pipe flaw detection, stabbing, cleaning and dredging device. The oil pipe flaw detector is placed in the oil pipe, which affects the operation of connecting a single oil pipe, and the operation is complicated

Method used

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  • Oil pipe online cleaning and flaw detection device
  • Oil pipe online cleaning and flaw detection device
  • Oil pipe online cleaning and flaw detection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] refer to Figure 1~2 , is a structural schematic diagram of Embodiment 1 of the present invention, an online cleaning flaw detection device for oil pipes, which is characterized in that it includes a probe 1, a lower flange 2, a housing 3, a cleaning device, an upper flange 4, and a self-sealing rubber core 5. The housing 3 is a cylindrical hollow structure, the upper flange 4 and the lower flange 2 are respectively fixed on the top and the bottom of the housing 3, and the upper flange 4 and the lower flange 2 are coaxial with the housing 3, so The cleaning device is fixed on the outer peripheral surface of the housing 3, the inner peripheral surface of the housing 3 is provided with a nozzle through hole communicating with the cleaning device, the execution end of the cleaning device is located in the nozzle through hole, and the top end of the upper flange 4 The gasket 6 is detachably connected, the self-sealing rubber core 5 is detachably connected between the gasket...

Embodiment 2

[0026] On the basis of embodiment 1, with reference to Figure 1-4 , the cleaning device is composed of a water channel 7, a nozzle 8 and a water inlet pipe 9, the water channel 7 is an annular hollow structure, and the inner peripheral surface of the water channel 7 has an opening, and the two sides of the opening of the inner peripheral surface of the water channel 7 are fixed on the shell The outer peripheral surface of the body 3, and the water channel 7 is horizontal to the upper flange 4, the nozzle 8 is detachably connected in the nozzle through hole of the housing 3, the outer peripheral surface of the water channel 7 is fixed with a water inlet pipe 9, and the water inlet pipe 9 It communicates with the waterway 7.

[0027] In actual use: first connect the water inlet pipe 9 to the water outlet of the water pump, then start the water pump, the water pump injects water into the water channel 7 through the water inlet pipe 9, and then sprays it out through the nozzle 9,...

Embodiment 3

[0029] On the basis of embodiment 2, with reference to figure 1 , there are at least two nozzle through holes, and the nozzle through holes are equidistantly located in the housing 3 , and each nozzle through hole can be detachably connected to a nozzle 8 , and the nozzle of the nozzle 8 is located in the inner cavity of the housing 3 .

[0030] In actual use: multiple nozzles 8 can clean the circumferential surface of the oil pipe at the same level without any gaps, so that the cleaning effect of the oil pipe is better and prominent. In this embodiment, 8 nozzles are used. Between the threaded connection.

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Abstract

The invention relates to the field of oil pipe flaw detection, in particular to an oil pipe online cleaning and flaw detection device. The oil pipe online cleaning and flaw detection device comprisesa probe, a lower flange, a housing, a cleaning device, an upper flange and a self-sealing rubber core; the housing is of a cylinder hollow structure; the upper flange is fixed to the top end of the housing; the lower flange is fixed to the bottom end of the housing; the upper flange and the lower flange are coaxial with the housing; the cleaning device is fixed to the outer circumferential surfaceof the housing; nozzle through holes communicating with the cleaning device are formed in the inner circumferential surface of the housing; the execution end of the cleaning device is positioned in the nozzle through holes; the top end of the upper flange is detachably connected with a gasket; the self-sealing rubber core is detachably connected in the gasket; and one end of the self-sealing rubber core passes through the upper flange and extends into the housing. The automatic cleaning and flaw detection of an oil pipe in the oil pipe lifting process can be achieved, the operation is convenient, the cleanliness of a working environment is ensured, the pollution to a surrounding environment is avoided, the working environment of the construction personnel is improved, the construction procedures are reduced, and the workover operation efficiency is effectively improved.

Description

technical field [0001] The invention relates to the field of oil pipe flaw detection, in particular to an oil pipe online cleaning flaw detection device. Background technique [0002] In oil well workover operations, the extracted crude oil pipe string needs to be cleaned, inspected for flaw detection, and drilled before it can be used again. At present, the oil pipe is generally taken out from the well in the construction, and the centralized cleaning, flaw detection inspection and passing procedures are completed on the ground. There are problems such as the sewage generated by the cleaning cannot be treated, the process is too many, and the labor intensity is high, which cannot meet the increasingly stringent safety and environmental protection requirements. cleaning requirements. [0003] At present, domestic oil pipe rod cleaning and flaw detection devices have single functions and cannot realize flaw detection while cleaning. The oil pipe cleaning device with the pat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B21/00E21B37/00E21B47/00
CPCE21B21/00E21B37/00E21B47/00
Inventor 白小佩王尚卫江智强罗有刚梁万银张雄涛赵鹏玉刘朋坤
Owner PETROCHINA CO LTD
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