Incident date: 2022-12-30
NAICS industry code: 213112

Employees were performing a tubing integrity test. As they were blowing down the pressure from the casing, the nipple assembly came off the casing valve flange onto the ground. The nipple threads and casing valve flange threads failed with the pressure, causing the employees to be pushed to the ground. The injured employee sustained a head injury and was hospitalized.

Hazard classification:
code_event: title: Explosion of pressure vessel, piping, or tire
code_source: title: Pipes, ducts, tubing, unspecified
code_nature: title: Intracranial injuries, unspecified
code_body: title: Brain
severity: moderate