DRILLING RIGS

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DRILLING RIGS
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What are DRILLING RIGS?

• Construction machinery which creates boreholes
  and shafts in the ground
• Large equipment which creates holes for water
  wells, oil wells, or use for the extraction of
  natural gas
• Can be used to test soil, rock material,
  groundwater
• Used to install underground utilities, wells,
  tunnels, and other instruments
• Can be powered by electric, mechanic, pneumatic,
  or hydraulic

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Why is safety a concern?

• Owners will not invest in a project if the site
  is a mine-field
• Can add considerable cost to a job if not safe
  environment
• Most significantly, protects the welfare of the
  employees

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Incidents

• 'three workers were using a drilling rig to
  install posts for a guardrail system at the side
  of the road. The mast of the rig contacted
  overhead primary power lines of 23,000 volts. The
  drill rig caught fire. One employee was killed
  (electrocution). Two employees were injured.
• 'a two man crew was drilling a water well on a
  residential building site. The drill rig had a
  drill head and a casing hammer on the mast of the
  rig. The victim was lowering the drill head when
  it contacted the casing hammer which was
  suspended by a wire rope cable. The cable broke
  causing the hammer to fall striking the victim in
  the head.

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How to avoid accidents when drilling!!

• Are high voltage overhead power lines or any
  other utility lines present in the area?
• CALL BEFORE YOU DIG! identify all underground
  utilities
• Avoid instability around areas such as rivers,
  banks, or pits
• Make sure there is no danger of lightning strikes
• Make sure all personnel around and controlling
  the machine is trained and capable of performing
  their duties
• http//www.iadc.org/asp.htm
• Website of International Association of Drilling
  Contractors
• Contains Rigs Operations Rules Official
  Guidelines
• Annual reports of rigging accidents

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OSHA Regulations

• 1926.306 (a)(1)
• This section applies to compressed air recievers
• 1926.800 (k)(3)(k)(9)
• Ventilation from dust, fumes, mists, vapors, or
  gases/explosive
• Dust control measures
• 1926.800(q)
• Main section discussing drilling

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Other incidents

• 'an employee was drilling a hole through the
  foundation of a house. The drill was said to be
  double insulated. The drill bit contacted an
  energized conductor and the employee, who was
  standing in water, was electrocuted.
• Dont drill metal objects into areas that contain
  electrical currents
• Know your surroundings
• 'employee 1 was attempting to break out a 5 ft
  section of drill stem with a pipe wrench that had
  a welded handle. The operator of the drill stem
  was 10 ft away. As he attempted to reverse the
  drill stem, it inadvertently turned clockwise.
  The tool, which was placed on the drill stem,
  subsequently turned in a counterclockwise motion
  and struck employee 1 in the left side of the
  head. The employee was not wearing a hard hat. He
  died the following day.
• Wear a hard hat

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Photos of Drilling Rigs