OSHA Accident Investigation · Summary #733642
CHAMPION WELL SERVICE INC.
GILLETTE, WY·
Event description
OIL WELL PERFORATION GUN EXPLODED, INJURING 3 EMPLOYEES
Investigation abstract
JUST PRIOR TO THE ACCIDENT EMPLOYEE #2 AND HIS CREW HAD REMOVED ALL THE TUBING F SHRAPNEL WOUNDS AND MINOR BURNS. COMPANY PROCEDURE WASN'T FOLLOWED CONCERNING I NSTALLATION OF THREE FIRING PINS INSIDE THE FIRING ASSEMBLY. ROM AN OIL WELL. EMPLOYEE #3 AND HIS ASSISTANT WERE ASSEMBLING A PERFORATION GUN FOR USE IN THE WELL. WHEN THE ACCIDENT HAPPENED EMPLOYEE #3 WAS ASSEMBLING THE GUN'S FIRING MECHANISM AT THE TOP OF THE GUN. EMPLOYEE #1 WAS STANDING OPPOSITE EMPLOYEE #3, CHECKING THE DIMENSIONS OF THE GUN. EMPLOYEE #2 WAS APPROXIMATELY 1 0 FEET BEHIND EMPLOYEE #1. THE PORTION OF THE GUN BEING WORKED ON AT THE TIME CO NSISTED OF TWO 10 FOOT SECTIONS CONTAINING 80 CHARGES. THE CHARGES ARE IN ROWS A LONG THE GUN'S LENGTH, 120 DEGREES APART. EMPLOYEE #1 WAS HIT IN BOTH SHOULDERS BY THE BLAST, CAUSING SKIN, MUSCLE AND BONE DAMAGE. EMPLOYEES #2 AND #3 RECEIVED
Victims (6)
-
#1 Hospitalized Age 62 M
- Nature of injury
- 5
- Part of body
- 21
- Event type
- 1
- Source
- 16
- Occupation code
- 613
- Human factor
- 1
- Environmental factor
- 7
- Task assigned
- 1
-
#2 Non-hospitalized injury Age 28 M
- Nature of injury
- 18
- Part of body
- 20
- Event type
- 1
- Source
- 14
- Occupation code
- 613
- Human factor
- 1
- Environmental factor
- 5
- Task assigned
- 1
-
#3 Non-hospitalized injury Age 27 M
- Nature of injury
- 18
- Part of body
- 5
- Event type
- 1
- Source
- 14
- Occupation code
- 615
- Human factor
- 1
- Environmental factor
- 5
- Task assigned
- 1
-
#981 Degree 0 Age 0
- Nature of injury
- 0
- Part of body
- 0
- Event type
- 0
- Source
- 0
- Occupation code
- 0
- Human factor
- 0
- Environmental factor
- 0
- Task assigned
- 0
-
#982 Degree 0 Age 0
- Nature of injury
- 0
- Part of body
- 0
- Event type
- 0
- Source
- 0
- Occupation code
- 0
- Human factor
- 0
- Environmental factor
- 0
- Task assigned
- 0
-
#983 Degree 0 Age 0
- Nature of injury
- 0
- Part of body
- 0
- Event type
- 0
- Source
- 0
- Occupation code
- 0
- Human factor
- 0
- Environmental factor
- 0
- Task assigned
- 0
Codes shown verbatim from OSHA's accident-investigation database. A human-readable decoder is coming in a future release once the accident_lookup2 dictionary is loaded.