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Simple oil and gas pipeline traction test method and device

A technology for oil and gas pipelines and testing methods, applied in the field of pipeline systems, can solve the problems of large overall floor space, high investment costs, and high traction test costs, and achieves the guarantee of accuracy and effectiveness, wide application prospects, and saving test space. Effect

Inactive Publication Date: 2013-03-27
PETROCHINA CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the traction test of pipelines with conventional defects (such as corrosion) is usually completed by testing companies. However, for the common spiral weld defects and girth weld defects of domestic pipelines, the testing companies do not have the ability to conduct traction tests or need to be shipped abroad. Pull test is too costly to calibrate and verify detector performance
In addition, the existing conventional traction test system has a fixed power system (tractor), traction speed control device, the overall footprint is large, and the investment cost is high

Method used

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  • Simple oil and gas pipeline traction test method and device
  • Simple oil and gas pipeline traction test method and device
  • Simple oil and gas pipeline traction test method and device

Examples

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Embodiment Construction

[0024] Embodiment. The specific embodiment of the present invention is described with this example and the present invention is described further. This example is a test system prototype, its composition is as follows figure 1 shown.

[0025] The traction test device is mainly composed of five parts: test pipeline support frame 3, power locomotive, guiding system, main traction rope 2 and auxiliary steel wire rope, fixed steering pulley 4 and its fixing device.

[0026] Place the defective pipeline 1 to be tested on the support frame 3, one end of the main traction rope 2 passes through the testing pipeline 1 for connecting the detector, and the other end passes through the steering fixed pulley 4 fixed on the ground for connecting the power locomotive; The auxiliary wire rope is used to pull the main traction rope 2 through the test pipeline 1 and pull it back to the initial traction position after completing a traction test to prepare for the next traction test.

[0027] T...

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Abstract

The invention relates to an oil and gas pipeline traction test method and an oil and gas pipeline traction device. The invention relates to the technical field of pipeline system. According to the invention, a pipeline requiring testing (1) is fixed on a ground supporting rack (3). A detector and a powertrain are connected by using a main traction rope (2) penetrating the pipeline requiring testing (1). A road leading system travels according to a preset speed, and the powertrain travels with a speed maintained the same with that of the road leading system, such that the detector travels through the pipeline requiring testing (1) under traction. The detector automatically records pipeline detection data. When the detector completely passes the pipeline requiring testing (1), the powertrain is stopped, and one time of traction is finished. For ensuring accuracy and validity of data, traction is carried out with various speeds for a plurality of times, such that in-situ traction test is finished. With the method and the device provided by the invention, traction test can be carried out upon pipelines containing defects. Test data can be provided for detector calibration and performance index verification, such that the precision of pipeline integrity evaluation results can be improved.

Description

technical field [0001] The invention relates to an oil and gas pipeline traction test method and device. It relates to the technical field of piping systems. Background technique [0002] The traction test of pipelines with defects is an important method for detector calibration and performance index verification, and is the basis for analyzing and evaluating pipeline inspection data. The test results can provide basis and reference for pipeline inspection and data analysis. [0003] In recent years, with the development of pipeline construction, the demand for safe operation of pipelines has increased, and the laws and regulations and standard systems related to inspection and evaluation have been refined and the requirements have been improved. In-pipeline inspection has become an indispensable technical means for defect detection and evaluation in the pipeline industry. . The traction test of the pipeline can calibrate the internal detector and verify the performance in...

Claims

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Application Information

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IPC IPC(8): G01N33/00G01N27/83
Inventor 燕冰川王学力宋汉成冯庆善张海亮贾光明陈健周利剑王富祥
Owner PETROCHINA CO LTD
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