NSF/CONACyT: Electrochemical Pattern-recognition Smart Sensors for Assessing and Predicting External Corrosion and Biological-corrosion in Underground Gas and Oil Pipeline Systems

0423882乌尔基迪-麦克唐纳石油和天然气行业以及环境和运输行业严重依赖其管道系统和地下储存容器的完整性。这些系统在很大程度上受到局部腐蚀的威胁，这可能会导致邻近环境的污染，如果这些管道位于恐怖分子可以进入的地方，还可能对国家安全构成威胁。这项研究将用于开发基于低阻抗频谱的新技术，以检测地下管道的外部腐蚀活动。监测地下管道系统和储罐内部腐蚀的技术将与墨西哥的一个研究团队共同开发，结果将导致在不久的将来建立智能监测系统。该活动将包括研究生和美国-墨西哥高级研究人员的夏季交流项目，通过与石油行业运营商的短期课程和实地活动。美国-墨西哥油气工业输送问题专家小组将通过联合研究以下领域来发展：(A)审查和建立模拟含CO2(甜)、H_2S(酸)的原油凝析相条件的环境中腐蚀机理的变化；管道系统中输送的氯化钠和解离产物：(B)现场(现场)电化学测量(直流和交流阻抗)，将现场实验与实验室实验联系起来，以便在真实条件下的实验中外推实验室结果；(C)开发一个原型，该原型将评估和描述受内部和外部腐蚀影响的管道中发生的不同电化学过程；以及(D)将模式识别数据挖掘模型收集的数据映射到管道操作员将遵循的步骤，以保持系统的完整性。在简单的传感器样机中嵌入数据采集和模型的要求将是本研究的成果之一。我们的长期目标是开发一种经济、准确和易于使用的工具。该工具将指导管道操作员执行维护系统完整性和健康所需遵循的步骤。预计两国之间的合作将继续下去，不仅对参与这项研究的研究生和本科生有利，而且对天然气和石油行业运营商的环境和安全也有好处。这项研究工作还将通过开发更好和更安全的工作场所来加强两国之间的科学和社区关系。

0423882 Urquidi-Macdonald The oil and gas industry, as well as environmental and transportation industries, rely heavily on the integrity of their pipeline systems and underground storage containers. These systems are largely threatened by localized corrosion, which could lead to contamination of the neighboring environment and, possibly, a threat to national security if the pipelines were located and accessible to terrorists. This research will be used to develop new techniques based on low impedance spectroscopy to detect external corrosion activity in underground pipelines. The techniques to monitor internal corrosion in underground pipeline systems and storage tanks will be developed jointly with a Mexican team of researchers, and the results will lead to building a smart monitoring system in the near future. The activity will include graduate students and a summer US-Mexico exchange program of senior research personnel through short courses and field activities with oil industry operators. A US-Mexican Team of experts on gas and oil industry transmission problems will be developed by means of researching the following areas jointly: (a) Reviewing and establishing the change of corrosion mechanisms in environments simulating conditions of the condensate phase of crude oil containing CO2 (.sweet.), H2S (.sour.), NaCl and dissociation products transported in pipeline systems: (b) In situ (in the field) electrochemistry measurements (DC and AC impedance) to associate the field experiments to the laboratory experiments in order to extrapolate laboratory results in real condition experiments; (c) Developing a prototype that will evaluate and characterize different electrochemical processes occurring in pipelines affected by internal and external corrosion; and (d) Mapping the data collected by a pattern recognition data mining model to the steps that the pipeline operator will follow to maintain the integrity of the system. The requirements for imbedding the data acquisition and model in a simple sensor-prototype will be one of the products of this research. The long-term objective is to develop a tool that will be economical, accurate, and easy to use. This tool will instruct pipeline operators in the steps to follow to maintain the integrity and health of the systems. It is anticipated that the cooperation between the two countries will continue and will benefit not only the graduate and undergraduate students teaming in this research effort, but the environment and safety of the operators in the gas and oil industry. This research effort will also strengthen the scientific and community relations between the two countries by developing a better and safer work place.