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Petrobras' strategy of inspection and reanalysis of fixed platforms

机译:Petrobras的固定平台检查和重新分析策略

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The strategy for integrity assessement of fixed platforms is unique for each oil Company. Petrobras Production Department has established a policy for integrated actions between inspection and structural areas to fulfill this duty. The aim of this paper is to describe the evolution of this metodology that results in a database comprising the main results of the structural analysis together with all the inspection results. This database is updated before each inspection is performed, or in case of changing in the data used in the analisys (lay-out, loads, enviromental conditions, structural analysis state-of-art, etc...). The inspection results are used to calibrate the model and structural analysis, generating new inspection targets with a great level of relability and eficiency. This interactive process led to a great knowledge of the Petrobras fixed steel structures, and a significant resources saving, as the process reduced the areas to inspect. Besides, in a final aproach this process modified the interval between inspections and the non destructive methods used in each selected area, all this without a prejudice in the safety operation of the installations.
机译:固定平台完整性评估的策略对于每个石油公司而言都是独特的。巴西国家石油公司生产部已经制定了一项政策,要求在检查和结构区域之间采取综合行动来履行这一职责。本文的目的是描述这种气象学的发展,这种气象学形成了一个数据库,其中包括结构分析的主要结果以及所有检查结果。在执行每次检查之前,或者在analisys中使用的数据发生更改(布局,负载,环境条件,结构分析的最新状态等)的情况下,将更新此数据库。检查结果用于校准模型和结构分析,从而产生具有较高可靠性和效率水平的新检查目标。这种互动过程使人们对Petrobras固定钢结构有了更深入的了解,并节省了大量资源,因为该过程减少了要检查的区域。此外,在最后的过程中,此过程修改了检查之间的间隔以及每个选定区域中使用的非破坏性方法,所有这些都不会影响设备的安全运行。

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