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Detection device and detection method for oil stealing branch pipes in pipeline

A detection device and pipeline technology, which is applied in the pipeline system, mechanical equipment, gas/liquid distribution and storage, etc., can solve the problems of complex detection process, high uncertainty, long time-consuming period, etc., and achieve high detection efficiency and high detection efficiency. The effect of simple steps and low production cost

Inactive Publication Date: 2019-04-26
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The detection method outside the pipeline requires manual walking along the pipeline, which has high uncertainty, low efficiency, and large errors, and cannot effectively and timely find out whether there is an oil-stealing branch pipe in the pipeline; the detection method based on magnetic flux leakage technology in the pipeline is , Long time-consuming cycle, complex detection process, unable to timely and periodically detect pipelines to find oil-stealing branch pipes

Method used

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  • Detection device and detection method for oil stealing branch pipes in pipeline
  • Detection device and detection method for oil stealing branch pipes in pipeline
  • Detection device and detection method for oil stealing branch pipes in pipeline

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Embodiment 1

[0058] The embodiment of the present invention provides a detection device for an oil-stealing branch pipe in a pipeline, and its structural diagram is as follows figure 1 Shown, comprise first leather cup 1, circuit board (in figure 1 not shown in), barrel 2, odometer 3 and electromagnetic eddy current probe set 4.

[0059] The inside bottom of the first cup 1 is connected to one end of the cylinder body 2 , and the other end of the cylinder body 2 is provided with an odometer 3 .

[0060] The electromagnetic eddy current probe set 4 is arranged on the outer wall of the barrel 2 and is located between the first cup 1 and the odometer 3 .

[0061] The cylinder body 2 is provided with a circuit board, and the electromagnetic eddy current probe group 4 and the odometer 3 pass through the wires (in figure 1 not shown) to the board.

[0062] Therefore, the detection device of the oil stealing branch pipe in the pipeline of the embodiment of the present invention utilizes the fi...

Embodiment 2

[0079] The embodiment of the present invention also provides a detection method for the stolen oil branch pipe in the pipeline. The detection device for the stolen oil branch pipe in the pipeline is used in combination with a certain crude oil pipeline to detect the stolen oil branch pipe. The crude oil pipeline has an outer diameter of 508mm and a wall thickness of 7mm, the delivery pressure is 4.5MPa, and the detection mileage is 87.7km, to detect whether there is an oil-stealing branch pipe in the pipeline. Such as Figure 5 As shown, the method is as follows:

[0080] Step 101: Start the detection device of the stolen oil branch pipe in the pipeline, and place the detection device of the stolen oil branch pipe in the pipeline in the serving cylinder;

[0081] Specifically, before starting the detection device, it is necessary to close the starting valve on the station at one end of the crude oil pipeline, and then place the detection device in the serving cylinder, wherei...

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Abstract

The invention discloses a detection device and detection method for oil stealing branch pipes in a pipeline, and belongs to the technical field of oil gas pipeline systems. According to the detectiondevice for the oil stealing branch pipes in the pipeline, a bowl bottom of the inner side of a first leather bowl is connected with one end of a cylinder body, so that impact of fluid in the pipelineis received, power is provided for motion of the device in the pipeline, a milemeter is arranged at the other end of the cylinder body, the advancing mileage of the device is recorded, the positions of the oil stealing branch pipes are positioned, an electromagnetic eddy current probe set is arranged on the outer wall of the cylinder body, and is arranged between the first leather bowl and the milemeter, a circuit board is arranged in the cylinder body, the electromagnetic eddy current probe set and the milemeter are connected with the circuit board through wires, and the electromagnetic eddycurrent probe set can detect whether metal losing points exist in the pipeline or not through electromagnetic eddy currents, whether the oil stealing branch pipes exist in the pipeline or not can be determined, the pipeline can be detected and monitored effectively in time, the manufacturing cost of the detection device is low, the detection step is simple, and the detection efficiency is high.

Description

technical field [0001] The invention relates to the technical field of oil and gas pipeline systems, in particular to a detection device and detection method for an oil-stealing branch pipe in a pipeline. Background technique [0002] With the continuous development of the domestic oil and gas transportation industry, more and more long-distance buried oil and gas pipelines are used in the transportation of oil and gas products. Pipeline transportation plays a pivotal role in the development of my country's national economy by virtue of its safety, high efficiency, energy saving, and environmental protection. However, since the 1990s, driven by huge profits, some criminals have drilled holes in national oil and gas pipelines to steal oil and gas, which has brought great harm to the safety of the pipeline itself and safe transportation. It causes great economic losses, and has a great negative impact on corporate reputation, environmental protection, and social stability. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D5/00
CPCF17D5/00
Inventor 陈朋超李睿赵晓明董鹏冯庆善蔡培培贾光明
Owner PETROCHINA CO LTD
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