A refinery welder focuses on the repair, installation, and extension of pipes and structural components using various welding techniques. In this career, you handle pipe fitting responsibilities and weld pipes that carry oil and gas products to, from, and within a refinery. You may also have welding duties related to tanks and other refinery equipment. After you join a pipe or make a weld, you need to inspect your work to ensure that it meets the safety regulations set out by the industry. Most inspections involve using x-ray equipment to check for a quality weld. Refinery welders often operate during shutdown periods.