FSM-LOG全周向腐蚀监测

1、FSM-IT FSM-IT： Field Signature Method -Inspection Tool 区域特征检测法区域特征检测法- -检测工具检测工具lCorrosion腐蚀腐蚀lerosion 冲刷腐蚀冲刷腐蚀lCracking裂纹裂纹 Based on well proven technology 基于一种证明了的技术基于一种证明了的技术 Accepted and used world wide by oil majors世界范围内主要的油田普遍接受和使用的方法世界范围内主要的油田普遍接受和使用的方法FSM-IT-FSM-IT Applications 应用应用Straight

2、pipe sections Pipe bends Y- or T-joints Any pipe diameter Vessels and tanks Any type of metal Welds High temperature locations (400oC) FSM Background 背景背景lField Signature Method 区域特征检测法区域特征检测法lDevelopment start 1985 1985 发展于发展于19851985年年lFirst Topside Installation 1991 l19911991年首次安装于甲板上年首次安装于甲板上lFi

3、rst Subsea Installation 1994 l19941994年首次安装于海底年首次安装于海底lUnderground 埋地埋地l“Portable” Direct Current Feeder l便携式直流反馈便携式直流反馈lWorld wide installationsl应用于世界范围内应用于世界范围内 FSM-IT Inspection ToolFSM Principle FSM The FSM Principle Across a Weld Sensing Pin WELD焊缝焊缝Fixed Current Flow固定的电流固定的电流VOLTAGE DROPAT ST

4、ART; E1初始电压降；初始电压降；E1Corro-sionVOLTAGE DROP WITH CORROSION; E2腐蚀后的电压降；腐蚀后的电压降；E2New Weld新焊缝新焊缝Corroded Weld腐蚀的焊缝腐蚀的焊缝 腐蚀腐蚀FSM-IT System ComponentsFSM-IT Sensing Matrix PortableInstrumentFSM-Trend PC SoftwareFSM-Trend FSM-IT System OverviewFSM-IT Advantages Operator variation18” PIPE - LONGITUDINAL W

5、 ELD SEAM02468101214160100 200 300 400 500 600 700 800 900 10001100 120013001400W eld Length (m m )C o rro sio n D ep th (m m )Operator 1Operator 2Operator 31.FSM-IT Operator Independent Readings FSM-ITUT measurements showing depth variations from 3 different inspectorsFSM-IT measurements showing hi

6、gh degree of repeatabilityFSM-IT m m的测量结果显示的测量结果显示良好的重复度良好的重复度 Pin Brazed Pins 3. FSM-IT Covers Bend And WeldFSM-IT4.FSM-IT; Remote inspectionFSM-IT : 5 minutes. 5 5分钟分钟No scaffolding.不需脚手架不需脚手架 UT : 1-2 hrs 1-21-2小时小时Plus scaffolding 需要脚手架需要脚手架 5. FSM-IT; No need to remove insulationUT : Make inspe

7、ction hatchwayor strip insulationPlus time for measurementFSM-IT : One reading covers entire bend and weld in 5 minutesUT : 需要开检测口或去除保温层，需要开检测口或去除保温层，增加了测量时间增加了测量时间FSM-IT : 1 1个读数可覆盖整个弯头和焊缝区域，个读数可覆盖整个弯头和焊缝区域，仅需仅需5 5分钟分钟5. FSM-IT; Portable InstrumentSoftware controlled operation Splashproof to IP 65I

8、P65Robust designUser friendlyHigh Data capacity6. FSM-IT Touch screen panel Pair # 1 : 00.00Pair # 2 : 00.00Pair # 3 : 00.00Pair # 4 : 00.00Pair # 5 : 00.00Pair # 6 : 00.00Pair # 7 : 00.00Pair # 8 : 00.00Latest Results from Tag # : DCT205067. FSMTrend Windows based SWxy plot00,10,20,30,40,50,60,70,8

9、0,9102.04.9827.05.9807.07.9818.08.9811.11.98DateMetal Loss (mm)pin pair 21pin pair 50pin pair 51pin pair 534% medium TAN blend9% medium TAN blend9% high TAN blend9% medium TAN blendField Data7006005004003002001000,0- 0,1Exposure Period暴露时间暴露时间METALLOSS -MmmGrowing Pit at 6 Oclock6点钟位置蚀坑生长点钟位置蚀坑生长Uni

10、form Corrosion均匀腐蚀均匀腐蚀Change in Process Composition流程成分的变化流程成分的变化FSMTrend Plot8. FSMTrend 3D plots16” WET GAS PIPELINE(Fall 98)Post Processed Plot5:005:306:307:00123456700.20.40.60.811.21.41.61.82Corrosion mmClock position16” WET GAS PIPELINE (6 mos. later)Post Processed PlotFSM-IT InstallationsFSM-

11、IT的安装的安装Offshore Onshore FSM-IT; Offshore Flowlines FSM-IT；FSM-IT in Refinery FSM-ITSensing Pin MatricesSensing Pin Matricesin Refineryin RefineryFSM-IT at Gas Storage FSM-ITFSM-IT UndergroundPicture from buried FSM in Colombia FSM-ITFSM-IT for vesselsFSM-IT Buried FSM-IT FSM-ITFSM-IT installation N

12、atal FSM-IT FSM-IT installation Natal -2 FSM-ITFSM-ITinstallation Natal 3FSM-IT Natal 5 FSM-ITFSMLog instrumentFSMLoglThe FSM-Log development is on-going, and equipment will be commercially available in 3rd quarter 2007. FSM-LoglEquipment certified for use in hazardous zones 1 and 2.l经鉴定可用于危险区域经鉴定可用

13、于危险区域1 1和和2 2lFSM equipment at a much lower price than FSM stations sold earlier l相对于以前的相对于以前的FSMFSM站更加便宜站更加便宜lFSM-Log can be integrated with CorrLog and SandLog in one common system, using same Field Interface Units and MultiTrend softare.l可与可与CorrLogCorrLog和和SandLogSandLog综合，使用相同的综合，使用相同的现场界面设备和软件

14、现场界面设备和软件lFSMLog with high accuracy alternative both to intrusive monitoring techniques as well as e.g. ultrasonic wall thickness measurements.l可替换插入式监测技术和超声波测厚技术可替换插入式监测技术和超声波测厚技术，但精度大大提高，但精度大大提高Advantages of FSMLogFSMLoglNon-intrusive 非插入式非插入式lNo risk for spills or leaks没有泄漏的危险没有泄漏的危险lIncreased sa

15、fety in H2S environment提高在提高在H2SH2S环境中的安全性环境中的安全性lSuitable for difficult locations, such 如适用于困难的位置如适用于困难的位置lMeasures corrosion directly at the pipe wall 直接在管壁测量腐蚀直接在管壁测量腐蚀lNo need for consumeables (probes, coupons) 不需耗材（探针、挂片）不需耗材（探针、挂片）lNo need for intervention using retrieval tool 不需取放工具不需取放工具lMost realistic measurement of general corrosion, indication also of localized corrosion 最最现实的测量均匀腐蚀、局部腐蚀（或指示）的方法现实的测量均匀腐蚀、局部腐蚀（或指示）的方法lSuitable in H2S environment适用于H2SH2S环境环境lSafety安全安全lMeasurements not