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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 686261 - Employee Killed When Exposed To Excessive Nitrogen

Accident: 686261 -- Report ID: 0855610 -- Event Date: 06/13/1991
InspectionOpen DateSICEstablishment Name
10787295406/14/19911311Chevron Usa Inc
At approximately 2:00 p.m. on June 13, 1991, Employee #1 entered a 6 ft metal meter shed to calibrate a nitrogen flow recorder. The recorder is used to monitor the amount of nitrogen being injected into a gas well in order to enhance the recovery of gas and oil from underground formations. He was calibrating the flow recorder when, for some reason, a piece of stainless steel tubing came loose at a swage fitting, allowing nitrogen to rapidly enter the meter shed at approximately 4,800 psi. Employee #1 was quickly overcome in the nitrogen rich atmosphere and was killed.
Keywords: unsecured, toxic atmosphere, equipment failure, nitrogen, air contamination, gas well drilling, overexposure
Employee # Inspection Age Sex Degree Nature Occupation
1 107872954 Fatality Asphyxia Adjusters and calibrators

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