漠河-大庆输油管道冻胀和融沉监测技术  

Monitoring of frost heaving and thaw settlement of Mohe-Daqing Crude Oil Pipeline

作　　者：张世斌 王学力 沙胜义 张爱国 吴官生 马云宾[2] 王琦 

机构地区：[1]中国石油管道公司加格达奇输油气分公司,黑龙江加格达奇165000 [2]中国石油管道科技研究中心油气管道输送安全国家工程实验室,河北廊坊065000 [3]中油管道防腐工程有限责任公司,河北廊坊065000

出　　处：《油气储运》2014年第5期488-492,共5页Oil & Gas Storage and Transportation

基　　金：中国石油天然气股份有限公司管道公司技术开发项目"漠大线安全运行保障技术应用研究";20110202

摘　　要：冻胀、融沉是多年冻土区漠河―大庆(漠大)输油管道面临的重要风险之一。为了识别冻胀、融沉给漠大输油管道带来的风险,基于液体压力原理,在强冻胀、融沉区建立了一套自动采集和远程传输数据的冻胀、融沉监测系统,并进一步阐述了该监测系统的原理、组成及其功能。通过对漠大输油管道为期一年的位移监测数据进行比较和分析,确定了该区域管道冻胀、融沉的具体变化情况;并采用ABAQUS有限元分析软件,计算了最大管体竖向位移所引起的载荷,依据规范判定管道在目前的位移载荷作用下是安全的。实践表明,该系统对管道冻胀、融沉的有效监测,对于保障多年冻土区长输管道的安全运行具有重要作用。(图8,参8)Frost heaving and thaw settlement are the major risks facing Mohe-Daqing Crude Oil Pipeline in the permafrost region. In order to detect the risk caused by frost heaving and thaw settlement, a monitoring system has been established with a SCADA system in highly possible frost heaving and thaw settlement region based on liquid pressure principle, the principle, composition and function of the monitoring system is elaborated in this paper. Through comparing and analyzing the displacement from monitoring data of Mohe-Daqing Crude Oil Pipeline in one year, specific situation of pipeline frost heaving and thaw settlement in this resign has been ascertained. Furthermore, the load caused by the maximum vertical displacement of pipe is calculated using ABAQUS. According to the standard, the pipeline under the current displacement is safe. Practice shows that effective monitoring of this system on pipeline frost heaving and thaw settlement plays an important role in ensuring the safe operation of long-distance pipeline in permafrost region.

关 键 词：长输管道 多年冻土 冻胀 融沉 监测系统 

分 类 号：TE88[石油与天然气工程—油气储运工程]