CN101776211A - 一种用于海底油气管线检测与定位的挠性装置 - Google Patents

一种用于海底油气管线检测与定位的挠性装置 Download PDF

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CN101776211A
CN101776211A CN200910245200A CN200910245200A CN101776211A CN 101776211 A CN101776211 A CN 101776211A CN 200910245200 A CN200910245200 A CN 200910245200A CN 200910245200 A CN200910245200 A CN 200910245200A CN 101776211 A CN101776211 A CN 101776211A
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CN101776211B (zh
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王翎羽
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NEPTUNE OFFSHORE ENGINEERING DEVELOPMENT CO., LTD.
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HAIWANGXING OCEAN ENGINEERING TECHNOLOGY Co LTD TIANJIN CITY
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Abstract

本发明涉及海底油气管线检测与定位的装置，该装置主要是一种挠性结构，主要由耐高温高压管1、信号缆2、电缆3、绝缘层4、钢带层5、包覆层6、水听仪或电热棒或探测仪7和抗碰头8组成。水听仪或电热棒或探测仪安装在挠性缆的端点位置，在水听仪或电热棒的端点处连接着抗碰头。在管线清管之后，将装有水听仪或电热棒或探测仪等设备的挠性缆抗碰头放入起始端平台立管内，启动液压缸以步进方式将挠性缆推入海管内，进行漏点查找。本发明的有益效果是，该检测装置能够智能行走、自主检测、缺陷等级实时分析与判别和对待修复缺陷进行实时定位。

Description

一种用于海底油气管线检测与定位的挠性装置
技术领域
本发明涉及海底油气输送管道缺陷检测与定位的装置，特别涉及一种缺陷判别与精确定位的方法。
背景技术
我国渤海海域及胜利、大港和辽河油田的浅海部分蕴藏着丰富的油气资源，将成为我国东部石油稳产的重要基地，海底管网规模日益增大。由于海底表层地基不稳定、介质腐蚀、海流冲淘及海上意外事故等原因，管道易发生缺陷和损伤，发生油气泄漏，造成巨大的经济与生态环保损失。
目前石油管道的在线检测方法主要有漏磁检测、超声检测以及涡流检测等，在国外已有30多年的应用历史。我国近年来也开展了一些研究工作，但是应用于海底管道内的检测技术的研究在国内还是很少，且国内外的漏磁或超声在线检测装置都是一种规格只能针对一种管径，不能适用于若干管径；在定位技术方面，我国更是很少有研究。国外技术仅能通过油压差驱动进行管道在线检测，无法对检测到的管道缺陷进行精确大地定位，仅能借助GIS进行初步定位，定位误差比较大。虽然我国海洋石油勘探开发发展速度逐年加快，但是由于海洋环境的特殊性，海底表层地基不稳定或海流冲淘等原因使海底管道位置发生变异，尽快建立详尽实时的GIS系统确有较大难度。为此研究推出了一种用于海底油气管线检测与定位的装置及方法。
发明内容
本发明的目的是针对现有技术中存在的上述缺陷，发明一种海底油气管线检测与定位的装置及方法。它首先能实现海底输油管道实时检测、缺陷实时分析和水下精确大地定位，与管线维修装置配套，形成海底管道检测、维修的完整体系，能够克服检测软件无法自主判别缺陷和难以存储大容量检测数据的难度，有效地进行管道缺陷识别与分析；其次是克服泥土、海水对信号的衰减效应和双层管的屏蔽效应，有效地进行精确大地定位和为管线维修装置提供缺陷的精确位置。
本发明解决其技术问题所采用的技术方案是：该检测装置包括耐高温高压管、信号缆、电缆、绝缘层、钢带层、包覆层、水听仪或电热棒或探测仪和抗碰头。其中挠性结构即挠性缆由耐高温高压管、信号缆、电缆、绝缘层、钢带层和包覆层组成。在挠性缆的端点处根据实际工作需要装有水听仪或电热棒或探测仪等设备，在水听仪或电热棒或探测仪的端点处安装有抗碰头。各组成部分相互协调，在管线清管之后，将装有水听仪或电热棒或探测仪等设备的挠性缆抗碰头放入起始端平台立管内，启动液压缸以步进方式将挠性缆推入海管内，在预定的程序控制下完成海底管内行走、检测、缺陷判别与缺陷定位。
本发明的有益效果是如上所述，该装置具有智能行走、自主检测、缺陷等级实时分析与判别和对待修复缺陷实时定位的优点。本发明的海底油气管线检测与定位技术能够有效地对管线进行检测与定位，可推广应用于水下、陆上各类管道的检测，具有非常高的推广应用价值。
附图说明
以下结合附图及实施例对本发明作进一步说明。
图1是本发明的挠性缆构造图；
图2是本发明的挠性缆工作示意图。
其中：1-耐高温高压管；2-信号缆；3-电缆；4-绝缘层；5-钢带层；6-包覆层；7-水听仪或电热棒或探测仪；8-抗碰头；9-海管；10-液压缸。
具体实施方式
参见附图可知本发明的具体结构如上所述。该检测装置包括耐高温高压管1、信号缆2、电缆3、绝缘层4、钢带层5、包覆层6、水听仪或电热棒或探测仪7和抗碰头8等。其中耐高温高压层1、信号缆2、电缆3、绝缘层4、钢带层5和包覆层6组成挠性结构即挠性缆。其具体结构方式为：耐高温高压管1、信号缆2和电缆3被绝缘层4所包覆，钢带层5包覆着绝缘层4，包覆层6包覆着钢带层5。挠性缆的端点处连接着水听仪或电热棒或探测仪7等设备，水听仪或电热棒或探测仪7的端点处连接着抗碰头8。其工作方法包括下列步骤：
1、对管线9进行扫线，以确保检测装置的安全作业；
2、将在线检测到的缺陷信息、焊缝数量及里程信息在信号缆2上预先设定；
3、被检测管线9充满液体介质后，将该检测装置放入起始端平台立管内；
4、启动液压缸10，以步进方式将挠性缆推入海管9内，行走到在线检测到的缺陷管段后，由带有抗碰头8和水听仪或电热棒或探测仪7的挠性缆开始进行检测，由信号缆2实时采集检测到的信息，并与预设的缺陷信息进行实时分析对比，确认发现待修复缺陷信息和相应位置后即发射给海底管线维修装置，关闭液压缸10使挠性缆停止行走。海底管线维修装置的超低频信号接收器接收此信号后即可通过相应的操作对缺陷点进行精确的定位；
5、上述工作完成后，检测装置继续爬行，而维修装置对管线缺陷进行维修。
如图所示，该检测装置在液压缸10的带动下，实现对检测装置的启动、前进、后退、停止。预先将缺陷信息设在信号缆3中，随着装置的移动，不断采集在测管线的信息，并与预设信息进行实时分析，确定缺陷位置、等级，有效实现示踪定位。水听仪或电热棒或探测仪等设备根据实际需要安装在挠性缆和抗碰头之间，以确保检测装置的可靠性和安全性。

Claims (5)

1.一种用于海底油气管线检测与定位的挠性装置，该装置包括耐高温高压卡管、信号缆、电缆、绝缘层、钢带层、包覆层、水听仪或电热棒或探测仪和抗碰头，其特征在于：耐高温高压管、信号缆和电缆被绝缘层所包覆，绝缘层被钢带层所包覆，钢带层被包覆层所包覆。
2.根据权利要求1所述的海底油气管线检测与定位的挠性装置，其特征是：耐高温高压管、信号缆、电缆、绝缘层、钢带层和包覆层组成挠性缆，在挠性缆的端点处安装有水听仪或电热棒或探测仪等设备，在水听仪或电热棒或探测仪的端点处安装有抗碰头。
3.根据权力要求1所述的海底油气管线检测与定位的挠性装置，其特征是：在挠性缆和抗碰头之间根据实际需要安装有水听仪或电热棒或探测仪等设备中的任何一个或者同时都安装上。
4.根据权力要求1所述的海底油气管线检测与定位的挠性装置，其特征是：预先将缺陷信息设在信号缆3中，随着装置的移动，不断采集在测管线的信息，并与预设信息进行实时分析，确定缺陷位置、等级，有效实现示踪定位。
5.根据权利要求1所述的海底油气管线检测与定位的挠性装置，其特征是：在管线清管之后，将装有水听仪或电热棒或探测仪等设备的挠性缆抗碰头放入起始端平台立管内，启动液压缸以步进方式将挠性缆推入海管内，进行漏点查找。
CN 200910245200 2009-12-30 2009-12-30 一种用于海底油气管线检测与定位的挠性装置 Expired - Fee Related CN101776211B (zh)

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* Cited by examiner, † Cited by third party
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CN103782147A (zh) * 2011-08-02 2014-05-07 纳克斯公司 水下检测设备
CN104456094A (zh) * 2014-12-22 2015-03-25 天津大学 一种基于声信号的pccp爆管预警监测系统
CN108387343A (zh) * 2018-03-01 2018-08-10 英特尔产品（成都）有限公司 烘箱漏气点快速检测定位装置及方法
CN115452862A (zh) * 2022-05-24 2022-12-09 贵州电网有限责任公司 一种电缆排管检测用挠性内窥镜装置

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US5286154A (en) * 1987-03-18 1994-02-15 Electric Power Research Institute, Inc. In bundle foreign object search and retrieval apparatus
FR2632442B1 (fr) * 1988-06-06 1990-09-14 Framatome Sa Dispositif de mesure de parametres dans le coeur d'un reacteur nucleaire en service
CN2472314Y (zh) * 2001-03-28 2002-01-16 耿玉桐 挠性导线
GB0701558D0 (en) * 2007-01-26 2007-03-07 Insensys Oil & Gas Ltd Fluid composition monitoring

Cited By (6)

* Cited by examiner, † Cited by third party
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CN103782147A (zh) * 2011-08-02 2014-05-07 纳克斯公司 水下检测设备
CN103782147B (zh) * 2011-08-02 2017-05-10 纳克斯公司 水下检测设备
CN104456094A (zh) * 2014-12-22 2015-03-25 天津大学 一种基于声信号的pccp爆管预警监测系统
CN108387343A (zh) * 2018-03-01 2018-08-10 英特尔产品（成都）有限公司 烘箱漏气点快速检测定位装置及方法
CN108387343B (zh) * 2018-03-01 2019-11-05 英特尔产品（成都）有限公司 烘箱漏气点快速检测定位装置及方法
CN115452862A (zh) * 2022-05-24 2022-12-09 贵州电网有限责任公司 一种电缆排管检测用挠性内窥镜装置

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