Incident date: 2017-08-28
NAICS industry code: 333132

Employees were conducting routine maintenance for corrosion control/rust prevention cleaning of a wellhead. They were needle gunning and removed the bolts on a clamp that keeps the wellhead and oil tree together. When they removed the bolts, it created a pressure gap that dislodged the oil tree. The 2,000-pound tree then fell on top of the injured employee, crushing the employee's torso. The employee experienced difficulty breathing and possible internal, minor bleeding and bruising.

Hazard classification:
code_event: title: Struck by object falling from vehicle or machinery-other than vehicle part
code_source: title: Machine and appliance parts, n.e.c.
code_nature: title: Crushing injuries
code_body: title: Trunk, unspecified
severity: moderate