###### Abstract  
Recent advances in additive manufacturing (AM) technology provide the potential for on-demand and rapid production of spare parts during urgent repair times. Recently, big oil and gas companies have shown early progress in using additive technology in manufacturing specific heat exchangers, downhole cleanout tool nozzles, offshore risers, gas turbine nozzles, and subsea chemical stick injection tools. Despite the mentioned progress, the current adoption level of additive technology for the offshore oil and gas industry is very limited. Non-destructive and destructive evaluation methods of additively manufactured metallic components have been studied extensively. However, the technique selection procedure and scope of the required test methods have not been studied sufficiently. This paper discusses various elements related to the qualification of additively manufactured components for application in the oil and gas industry. A risk-based qualification method for identifying the scopes of required non-destructive and destructive tests and the resulting qualification procedure for additively manufactured spare components in offshore oil and gas applications is suggested. additive manufacturing; offshore industry; spare parts; qualification; non-destructive testing 20221201313 20221201313 20221201313 20221201313 202212022120221202212022120221202212022120221202212022120221202212022120212022120221202212021202212021202  
border restrictions between countries, demands for AM components grew [5]. AM helps the production of many customized components based on individual customer needs; for example, in drilling operations, AM can provide more customized spare parts, helping to ensure particular old rig compliance, where the vendor no further supports that specific version of the product [6]. Despite this, there are many reports regarding the application of AM technology in the manufacturing of high-strength metallic parts, but there is no evidence of using AM technology in petroleum operations on an industrial scale--this is because there is no internationally accepted procedure for qualifying these materials for oil and gas application. Recently, many non-destructive and destructive methods have been developed to evaluate the quality of additively manufactured components. An overview of the applicable non-destructive techniques for metallic additively manufactured components can be found in the literature [7; 8]. The application of ultrasonic and X-rays microtomography in inspection of additively produced metal components has been investigated by [PERSON] et al. [9] and [PERSON] et al. [10], respectively. Despite much research conducted in the field of non-destructive and destructive test methods of additively manufactured components, the number of studies with a focus on determining an acceptable inspection and test plans are limited. A specific qualification of aluminium alloy parts produced by Raytheon's metals AM technology for safety-critical applications is presented in work by [PERSON] [11]. To date, there is no published paper that discusses the inspection and test plan and the qualification procedure of the additively manufactured spare parts for application in the offshore oil and gas industry [12; 13]. There are particular standards and recommended practices for risk-based inspection or qualification. The API-RP-580 and 581 are examples of such recommended procedures in the oil, gas, and petrochemical industries. The risk-based qualification is strongly dependent on damage mechanism identification. Although damage mechanisms in hydrocarbon-carrying pipelines are classified for engineering materials (e.g., API-571), the potential damage mechanisms for additively manufactured components requires continued research and investigation. Process-induced lack of fusion, porosity, surface defects, and residual stress are examples of risk drivers that can be found exclusively in the AM process.