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一本介绍Corrodium防腐蚀公司的介绍书

2010-05-03 3页 pdf 477KB 9阅读

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一本介绍Corrodium防腐蚀公司的介绍书 How we beat corrosion Backed by 20 years of experience, we are continuously working on ways and means to ensure and maintain the integrity of our clients’ facilities. Our projects for corrosion engineering include materials selection counselling, failure an...
一本介绍Corrodium防腐蚀公司的介绍书
How we beat corrosion Backed by 20 years of experience, we are continuously working on ways and means to ensure and maintain the integrity of our clients’ facilities. Our projects for corrosion engineering include materials selection counselling, failure analysis, inspection management and cathodic protection design. Unsatisfi ed with general conclusions or recommondations for further investigation, we provide clear-cut, practical solutions. Material selection reports, and long-term inspection management contracts, are undertaken for oil and gas companies and other industries. Our experience covers marine corrosion, oil and gas corrosion, process industry and civil works. Oil and gas production, industries and civil works engage our services for inspection management purposes. In the user phase, corrosion is the main degradation mechanism which implies that materials and corrosion knowledge is of vital importance. MARINE AND UPSTREAM OIL AND GAS Growing human activity at sea and on seashores leads to demand for better materials performance in sea and brackish water. A new project for oil and gas production requires an expert materials selection report based on parameters such as CO2 and H2S content. Excellent options for materials selection in marine conditions are available. They range from steel with CP to coatings and plastics to stainless steels, copper alloys and titanium, depending on requirements. Corrodium uses expert models with an extensive database to ensure the most effi cient, most durable and most economic materials performance for the application involved. In the user phase, our expertise is available to maintain asset integrity, optimizing the inspection intervals in accordance with the RBI philosophy. The defi nition of corrosion rates and degradation mechanisms related to carbon dioxide (CO2 corrosion) and hydrogen sulphide (H2S corrosion and sulphide cracking) are examples of this. Seawater corrosion and injection water are major issues for oil and gas production as well. CORROSION MONITORING Inspection management and corrosion control are optimized by monitoring. Corrodium works with electrical resistance technology, widely used for oil and gas production for more than 50 years. With its long-term proven record, this type of corrosion monitoring is very reliable and certifi ed for pressure equipment (PED) and electrical integrity (ATEX). We supply and commission such equipment, but more important, also guarantee the best data quality and results by our long-term experience in the optimal use of such probes. The results of the probes, which nowadays mostly operate online to the DCS system (process computer), are translated to direct actions, such as an inhibitor injection, a process change or a change in the inspection interval. We also provide and work with other types of probes, such as biofi lm monitoring probes and electrochemical corrosion probes (LPR, E-logi). Microbiologically Induced Corrosion (MIC) on stainless steel pipes in sandbed fi lter Wellhead Monitoring Founded in 1989, we are specialists in corrosion management and the optimization of materials performance. Our services include: • Corrosion engineering and materials selection • Inspection management • Failure analysis • Development of actively controlled sacrifi cial anodes • Corrosion monitoring and other instrumentation Our clients are involved in oil and gas production, the process and food industries, as well as public services. We comply with the ISO 9001 standard and the VCA regulations on safety, health and the environment. Corrodium has been consulted as an expert witness in several legal cases. We have a fully equipped in-house laboratory for investigations involving metallography, electron microscopy, EDX analysis and corrosion testing according to the various ASTM, NACE and ISO standards. Corrodium is a member of NACE (National Association of Corrosion Engineers). Combining materials and corrosion expertise with continuous innovations based on practical experience, Corrodium ensures the optimum durability and effi ciency of your facilities. Corrosion EngineeringIron ore offl oading: “Corrosion is reversed metallurgy” CATHODIC PROTECTION AND GALVANIC CORROSION The principles of cathodic protection are similar to those of galvanic corrosion. Corrodium has developed a computer model for cathodic protection and the elimination of galvanic corrosion, based on international design standards. The cathodic protection of special alloys, such as stainless steels, has been the object of our intense research and development. This has resulted in sacrifi cial anodes controlled by active circuit boards (intelligent anodes). Such anodes react on the alternating resistivity of water due to tidal infl uences in coastal areas. Pulsanodes, a spin-off of the intelligent anodes, create a pulse in order to reduce bio fouling, establishing simultaneously the correct level of corrosion protection. Further innovations are now being developed in the Marine Materials Laboratory and tested in various seawater and brackish water harbours. STAINLESS STEELS AND EXOTIC ALLOYS Stainless steel is an excellent material with an almost infi nite lifetime. It is vital, however, that the materials best suited for the purpose are selected and that the materials are prepared and treated in the proper way. A lot of Corrodium’s failure analysis is connected with stainless steels and exotic alloys such as nickel base and titanium. Some corrosion problems with stainless steels are industry- specifi c, e.g. ‘rouging’ problems in ultra high purity water in the pharmaceutical industry, free iron contamination in the building industry, stress corrosion cracking in swimming pools or the condensation of organic acids in distillation columns. Corrodium has introduced several innovations for the improved performance of stainless steels, such as the ‘Vapour Test’ for accurate and fast identifi cation of iron on stainless steel surfaces, the Oxilyser for passivity testing and the MolyTester for rapid alloy identifi cation. Better materials performance through continuous research and innovation Corrodium bv Weversbaan 1-3, NL 2352 BZ Leiderdorp, the Netherlands Phone +31 71 52 32 385 Fax +31 71 52 30 786 E-mail XaleX@corrodium.nl (X=s) www.corrodium.nl 0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1 2,5 2 1,5 1 0,5 0 Vo lta ge r eq ui re d fo r -0 ,3 V po la ri za tio n (V ) Distance from Anode (m) 120 100 80 60 40 20 0 C ur re nt (m A ) 14 :4 4 14 :4 9 14 :5 7 15 :0 4 15 :1 1 15 :1 7 15 :2 4 15 :3 1 15 :3 7 15 :4 5 15 :5 2 15 :5 9 15 :0 5 15 :1 2 15 :1 9 15 :2 7 15 :3 2 16 :4 0 16 :4 6 Time 20:51 21:08 21:54 22:04 22:26 22:50 23:11 23:21 0 -100 -200 -300 -400 -500 -600 -700 -800 P ot en tia l ( m V ) Time CP design model. Relation of the pipe diameter to the maximum anode distance for polarization of -300 mV. Pulsing anode current. A battery is not required, the anode itself is the power supply. Potential (mV Ag/AgCl2) www.ontverpia.nl Cover photo courtesy by Al Paso Corp. Intelligent sacrifi cial anode for protection and monitoring of stainless steel seawater cooler. Crevice corrosion in super duplex stainless steel seawater cooler. 100mm 1000 mm How we beat corrosion
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