OSHA Accident Investigation · Summary #14510721
WELLTECH INC
CHRISTOVAL, TX—
Event description
One killed, one injured in oxygen-deficient frac tank
Investigation abstract
Employees #1 and #2 were instructed to record the pressure and depth of nitrogen with acute respiratory failure due to noxious gas inhalation. and other acidifying chemicals flowing into a 500 BB1 fractionation tank from a n oil well near completion. Employee #1 entered the tank to retrieve a gauge lin e that he had dropped into it through a manhole at the top. Employee #2 entered the tank after seeing Employee #1 unconscious inside the tank; he also lost cons ciousness. Crew members removed a manhole cover from the bottom of the tank and drained 2 1/2 ft of the chemical solution. A company representative wore an oxyg en mask from the ambulance to enter the tank and remove both employees. Employee #1 was pronounced dead on arrival at the hospital. Employee #2 was hospitalized
Victims (2)
-
#1 Fatality Age 30 M
- Nature of injury
- 2
- Part of body
- 28
- Event type
- 8
- Source
- 9
- Occupation code
- 999
- Human factor
- 1
- Environmental factor
- 7
- Hazardous substance
- 1900
- Task assigned
- 1
-
#2 Hospitalized Age 22 M
- Nature of injury
- 2
- Part of body
- 28
- Event type
- 8
- Source
- 9
- Occupation code
- 999
- Human factor
- 1
- Environmental factor
- 7
- Hazardous substance
- 1900
- Task assigned
- 1
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