CN103984030A - PCM locating method for oil gas station yard buried pipeline - Google Patents

PCM locating method for oil gas station yard buried pipeline Download PDF

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Publication number
CN103984030A
CN103984030A CN201410224656.1A CN201410224656A CN103984030A CN 103984030 A CN103984030 A CN 103984030A CN 201410224656 A CN201410224656 A CN 201410224656A CN 103984030 A CN103984030 A CN 103984030A
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China
Prior art keywords
pipeline
pcm
buried pipeline
transmitter
buried
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Pending
Application number
CN201410224656.1A
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Chinese (zh)
Inventor
彭星煜
梁光川
喻建胜
何莎
宋日生
冯强
彭蕾
何慧娟
文雯
左果
李洪
夏炜
张力
赵星淋
刘春亮
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Southwest Petroleum University
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Southwest Petroleum University
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Publication date
Application filed by Southwest Petroleum University filed Critical Southwest Petroleum University
Priority to CN201410224656.1A priority Critical patent/CN103984030A/en
Publication of CN103984030A publication Critical patent/CN103984030A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a PCM locating method for an oil gas station yard buried pipeline. The method is characterized by including the following steps that one end of a PCM transmitter (1) is connected with a ground entrance point (4 ) of the buried pipeline through a first wire (2), the other end of the PCM transmitter (1) is connected with a ground exit point (5) of the buried pipeline through a second wire (3), so that a loop is formed, the transmitter is started, electric signals are loaded on the pipeline and tracked through a receiver, and therefore the position of the buried pipeline can be judged. According to the method, interference in the target pipeline from a buried pipe network in a station yard can be eliminated, the method is simple and effective, and the error is smaller than 100 mm.

Description

A kind of PCM localization method of Oil and gas station buried pipeline
Technical field
Patent of the present invention relates to a kind of PCM localization method of Oil and gas station buried pipeline.
Background technology
At present, in Oil and gas station, the location of buried pipeline also just relies on completion information or digging in-situ to determine, does not also form a kind of non-excavation location technology of real-time high-efficiency.The present invention is intended to solve a buried pipeline orientation problem in station, uses a kind of new method-PCM " short circuit method " to carry out signal loading to pipeline, thereby realizes in non-excavation situation determining of a buried pipeline position, the degree of depth in station.
In Oil and gas station, the location of buried pipeline mainly relies on completion information and digging in-situ to determine.Due to reasons such as management, reorganization and expansion, may cause completion information loss or incomplete, cause pipeline rout not clear, can not accurately locate; And digging in-situ workload is large, be not suitable for carrying out large-scale pipeline searching work.
The signal loading mode of conventional P CM is PCM transmitter one end and signal on pipeline to be fed to point be connected, other end access earth polar, form the loop of " transmitter-pipeline-the earth-transmitter ", in the location and the anticorrosive coat performance evaluation that are only used to long defeated buried pipeline in the past, and in field, station, pipe network is intensive, between surface duct, almost do not carry out electrical isolation, and on pipeline, there are a large amount of ground connection facilities, if the directly current signal of loaded into transmit machine on pipeline, electric current can be run helter-skelter along pipeline between uninsulated pipeline and earth mat, while using receiver targeted duct, because signal is too chaotic, cannot accurately capture target pipe signal.Therefore according to conventional method, be difficult to use PCM accurately to judge the position of pipeline.The present invention will provide a kind of new method-PCM " short circuit method ", realizes current signal and only on target pipeline, transmits, and coordinates receiver to follow the trail of this current signal, thereby realizes the position of buried pipeline in field, station and determining of the degree of depth.
Summary of the invention
Patent of the present invention is to solve the problems of the technologies described above and a kind of PCM localization method of Oil and gas station buried pipeline is provided, it is characterized in that comprising the following steps: one end of PCM transmitter (1) is entered to place (4) by buried pipeline in the first wire (2) docking station field, the other end of PCM transmitter (1) connects underground pipe by the second wire (3) and says place (5), described buried pipeline enters place (4) and goes out two end points of place (5) linking objective pipeline (6), this target pipeline (6) is embedded in (7) inside, the end, ground.Connect completely, form the loop of " transmitter-wire-buried pipeline-wire ", open transmitter, on pipeline, load electric signal, follow the trail of electric signal with receiver and can judge and determine buried pipeline position.The method need not be connected with the earth PCM transmitter (1).
The method finds that the error of target pipeline is less than 100mm.
PCM is the abbreviation of PipelineCurrentMapper, i.e. Pipeline current mapper.The detection and localization of buried pipeline adopts " RD-PCM+ buried pipeline electric current mapping system ", and this system is mainly made up of ultralow frequency high-power transmitter, portable receiver.Provide exciting current signal by transmitter to pipeline, the spontaneous exit point of current signal extends to both sides along pipeline, form electromagnetic field at pipeline, the intensity in this magnetic field is relevant with ducted strength of current, utilize pipeline top to receive function and detect exactly the current signal transmitting through pipeline, by following the tracks of and gather this signal, record pipeline strength of current everywhere, can carry out duct route location and depth survey.
Beneficial effect:
PCM " short circuit method " is connected transmitter with wire with pipeline, without the earth, but the loop of formation " transmitter-pipeline-wire-transmitter " uses PCM receiver to follow the trail of on ground, gathers current signal, and then can judge trend and the buried depth of pipeline.The method is simple and practical, and error is less than 100mm.
Brief description of the drawings
Below in conjunction with drawings and the embodiments, the present invention is further detailed explanation:
Fig. 1 is exemplary plot of the present invention.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.
A kind of PCM localization method of Oil and gas station buried pipeline, it is characterized in that comprising the following steps: one end of PCM transmitter (1) is connected to pump district by the first wire (2) and enter place (4), the other end of PCM transmitter (1) connects heat transfer zone by the first wire (3) and goes out place (5), described pump district enters place (4) and heat transfer zone and goes out two end points of place (5) linking objective pipeline (6), this target pipeline (6) is embedded in (7) inside, the end, ground, after connection, open transmitter, on target pipeline, load electric signal, follow the trail of this electric signal with receiver and can determine pipeline location.The method need not be connected with the earth PCM transmitter (1).
The method finds that the error of target pipeline is less than 100mm.
Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.

Claims (2)

1. the PCM localization method of an Oil and gas station buried pipeline, it is characterized in that comprising the following steps: one end of PCM transmitter (1) is connected to buried pipeline by the first wire (2) and enter place (4), the other end of PCM transmitter (1) connects underground pipe by the second wire (3) and says place (5), described buried pipeline enters place (4) and goes out two end points of place (5) linking objective pipeline (6), this target pipeline (6) is embedded in (7) inside, the end, ground, the method need not be connected with the earth PCM transmitter (1).
2. the PCM localization method of a kind of Oil and gas station buried pipeline as claimed in claim 1, is characterized in that the error of the method discovery target pipeline is less than 100mm.
CN201410224656.1A 2014-05-26 2014-05-26 PCM locating method for oil gas station yard buried pipeline Pending CN103984030A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410224656.1A CN103984030A (en) 2014-05-26 2014-05-26 PCM locating method for oil gas station yard buried pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410224656.1A CN103984030A (en) 2014-05-26 2014-05-26 PCM locating method for oil gas station yard buried pipeline

Publications (1)

Publication Number Publication Date
CN103984030A true CN103984030A (en) 2014-08-13

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CN201410224656.1A Pending CN103984030A (en) 2014-05-26 2014-05-26 PCM locating method for oil gas station yard buried pipeline

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107703551A (en) * 2017-08-14 2018-02-16 中国市政工程中南设计研究总院有限公司 A kind of great burying concrete drain tile line detection method with pressure
CN108572396A (en) * 2018-04-27 2018-09-25 佛山市燃气集团股份有限公司 A kind of underground gas pipeline detection method

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Publication number Priority date Publication date Assignee Title
US20040122600A1 (en) * 2002-12-19 2004-06-24 Dupuis Bruce Robin Data management of pipeline datasets
US20100117622A1 (en) * 2008-11-10 2010-05-13 Saudi Arabian Oil Company Method and apparatus for estimating the condition of a coating on an underground pipeline
CN103063738A (en) * 2012-12-19 2013-04-24 上海市特种设备监督检验技术研究院 Detecting method of outer anti-corrosion layer of buried fuel gas steel pipeline
CN203054241U (en) * 2012-12-21 2013-07-10 杭州德豪环保材料有限公司 Underground pipeline positioning system
CN103727398A (en) * 2013-11-08 2014-04-16 安徽省特种设备检测院 Non-excavation detection method for outer anti-corrosion layer of buried steel pipeline

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040122600A1 (en) * 2002-12-19 2004-06-24 Dupuis Bruce Robin Data management of pipeline datasets
US20100117622A1 (en) * 2008-11-10 2010-05-13 Saudi Arabian Oil Company Method and apparatus for estimating the condition of a coating on an underground pipeline
CN103063738A (en) * 2012-12-19 2013-04-24 上海市特种设备监督检验技术研究院 Detecting method of outer anti-corrosion layer of buried fuel gas steel pipeline
CN203054241U (en) * 2012-12-21 2013-07-10 杭州德豪环保材料有限公司 Underground pipeline positioning system
CN103727398A (en) * 2013-11-08 2014-04-16 安徽省特种设备检测院 Non-excavation detection method for outer anti-corrosion layer of buried steel pipeline

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Title
Z. ZHANG,ET AL.: "Research of Trenchless Detection Technology and Equipment of Small-Caliber Buried Oil and Gas Pipeline", 《ADVANCES IN AUTOMATION AND ROBOTICS》 *
刘周等: "PCM技术及其在兰成渝管道上的应用", 《管道技术与设备》 *
姚小静等: "多频管中电流法在油气管道检测应用中的一些建议", 《腐蚀与防护》 *
李杰: "城市地下管线探测技术及质量控制研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 *
王咏梅: "PCM检测技术在油气长输管道检测中的应用", 《化工时刊》 *
龙宪春等: "油气管道外检测技术现状与发展趋势", 《管道技术与设备》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107703551A (en) * 2017-08-14 2018-02-16 中国市政工程中南设计研究总院有限公司 A kind of great burying concrete drain tile line detection method with pressure
CN108572396A (en) * 2018-04-27 2018-09-25 佛山市燃气集团股份有限公司 A kind of underground gas pipeline detection method

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