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- REPORT
CHARACTERISTICS:
DONOR: Alberta Community and Occupational
Health
Occupational Health and Safety Division
JURISDICTION:
ALBERTA
REPORT TITLE: Fatality Investigation Data
Base
INFORMATION ABOUT DECEASED:
NAME: Confidential
SEX: Male AGE: 23
OCCUPATION: rotary well drilling and related
occupations
INDUSTRY:
cement and chemical treatment of
wells
Industrial sector: mines, quarries and
oil
ACCIDENT INFORMATION:
DATE OF ACCIDENT:
Confidential
PLACE: LEGAL DESCRIPT AREA: Red Deer
region
TYPE OF ACCIDENT:
struck by flying object (due to
pressure release)
SOURCE OF INJURY:
boilers, pressure
vessels (incl. pressurized pipes, hoses)
coal and petroleum
products
ACCIDENT DESCRIPTION:
Crews were conducting
a hot oil stimulation of a gas producing well. A
pressure
relief valve set at 2200 PSI was rigged into the annulus port of
the
wellhead and connected through a chicksan to 54.9m of
50.8mm I.D. used
production tubing through a reducing hose
fitting and flex hose to an
underground waste tank. Midway
through the stimulation program the pressure
relief valve
unloaded. Gas pressure caused the relief tubing to separate
at
the 18.288m joint with force and jet action which whipped
the tubing around the
wellhead, fatally injuring one
worker.
INVESTIGATION:
DATE: 1980-05-14
UNSAFE
ACT(S):
unsafe position/posture, inappropriate operational
position
using unsafe equipment, using equipment
unsafely
operating without authority, failure to secure or
warn
working on moving or dangerous equipment
UNSAFE
CONDITION(S):
hazardous spatial layout or work area
arrangement
INDIRECT CAUSE(S):
management's deliberate
disregard of known safe procedures
EMPLOYER
ACTION(S):
eliminate unsafe procedure
OHSO
ACTION(S):
inspections
approval of new procedures,
equipment, etc
issue a requisition or order
OTHER'S
ACTION(S):
prosecution of employer
REGULATION(S): 27076032
27076192 27076208 27076224
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©2004 Canadian Centre for Occupational
Health & Safety 