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A gas well drilling floorhand died when he was struck by a hoisted wellhead equipment stack.

Oklahoma State Department of Health
Morgantown, WV: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, FACE 05OK040, 2006 Oct; :1-6
A 56-year-old gas well drilling floorhand died on May 30, 2005 from chest trauma he received after being struck by a hoisted wellhead stack that overturned. The stack was composed of a lower spool, blowout preventer (BOP), upper spool, and a rotary head. The crew was attempting to replace the lower spool at the time of incident. As the victim and a coworker attempted to pry the lower spool loose, the 18,000-pound, top-heavy equipment overturned, pinning the victim to the ground and striking the coworker. Other crewmembers immediately freed the victim and called for emergency response. Emergency medical services (EMS) arrived at the scene and transported the victim to the nearest hospital. He was then transported by helicopter to another hospital where he was pronounced dead in the emergency room. Oklahoma Fatality Assessment and Control Evaluation (OKFACE) investigators concluded that to help prevent similar occurrences, employers should: 1. Ensure that employees do not position themselves under suspended loads. 2. Develop, implement, and enforce a comprehensive safety and health program that includes safe operating procedures for lifting/hoisting operations and compliance monitoring. 3. Develop written contracts that establish the chain of command and safety responsibilities of prime and subcontractors.
Region-6; Accident-analysis; Accident-prevention; Accidents; Injuries; Injury-prevention; Traumatic-injuries; Work-operations; Work-analysis; Work-areas; Work-performance; Work-practices; Safety-education; Safety-measures; Safety-monitoring; Protective-measures; Training; Oil-industry; Safety-programs
Publication Date
Document Type
Field Studies; Fatality Assessment and Control Evaluation
Funding Type
Cooperative Agreement
Fiscal Year
NTIS Accession No.
NTIS Price
Identifying No.
FACE-05OK040; Cooperative-Agreement-Number-U60-CCU-613938; Cooperative-Agreement-Number-U60-OH-008342
SIC Code
Source Name
National Institute for Occupational Safety and Health
Performing Organization
Oklahoma State Department of Health