Training

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Training I nformation Powerpoint Presentation
UNDERSTANDING POTENTIAL ENERGY
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• ENERGY
• Energy comes in many different forms
• All of them can be hazardous
• They can often be easy to identify and guard
  against e.g.
• Mechanical (moving equipment or machinery)
• Install barriers or guards
• Electrical
• Isolate
• Chemical (powders, liquids etc.)
• Wear PPE

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• ENERGY
• Some forms of energy are less obvious and harder
  to identify

• Pressure
• Test equipment, procedures etc.
• Radiation
• Detectors, isolate, procedures etc.
• Chemical (gases)
• Detectors, wear PPE, install ventilation etc.

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• ENERGY CHANGES
• Energy can change from one form to another.
• Try these

Pressure to Sound
Striking a match
Chemical to Heat Light
Blowing a whistle
Chemical to Sound, Mechanical Kinetic
Turning on electric oven
Driving a car
Electrical to Heat
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• POTENTIAL ENERGY
• Energy can also be stored in one form for release
  in another. e.g.
• A battery contains stored energy in a chemical
  form and it releases it as an electrical form.
• Discuss a metal spring, a hydro-electric dam
• This form of stored energy is called POTENTIAL
  energy.
• We need to understand it and be fully aware of
  all POTENTIAL energy sources in our workplace.

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• POTENTIAL ENERGY
• Similar to a battery, Potential is a form of
  stored energy.
• This stored or sometimes trapped energy can occur
  accidentally or without those involved realising
  it. We then have a highly hazardous situation!
• The energy will remain latent (stored) until a
  change occurs that causes the energy to be
  released.
• In certain circumstances, once released the
  forces produced by this stored energy can be
  large and potentially lethal.

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• POTENTIAL ENERGY
• Lets look at some examples of Potential energy

You put a tin of soup up on a shelf. By doing
this you have used your energy to pick up and
raise the tin to its new height. You have
therefore given it potential energy that will
remain stored until a change occurs.
The change may be vibration or someone giving it
more energy by accidentally knocking it off the
shelf. The result is obvious the tin releases
its potential energy in the form of kinetic
energy and so on.
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• POTENTIAL ENERGY
• Heres another simple example

You grip a rubber band between your teeth and
stretch it. By doing this you again transferred
your energy. You have therefore given the rubber
band potential energy that will remain stored
until a change occurs.
In this example, you let go of one end of the
band and The result is obvious SNAP!the band
releases its potential energy in the form of
kinetic energy (and of course a chemical
reaction on your nose!).
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• POTENTIAL ENERGY
• REMEMBER!As we stated earlier, it is essential
  that you are aware of the Potential Energy
  Hazards in your work area. Never forget that we
  are continually creating them as you lift and
  lower materials all over the rig.

Potential energy can be created very slowly or in
an instant. Its release can be catastrophic
causing enormous risk to life and
equipment. Please now take a few moments to
discuss this topic. Here are some pointers to
assist you
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• POTENTIAL ENERGY
• For each of the following examples
• Take a few moments to draw a simple sketch on a
  flipchart.
• Consider what forces went into creating the
  stored or trapped energy.
• Try and identify how the potential energy is
  being stored.
• Determine how it could be released safely.
• Discuss in detail what could happen if the stored
  or trapped energy is not detected and is released
  in an unsafe manner.
• Identify and discuss any necessary controls to
  avoid injury to personnel or damage to equipment.
  
• Please dont be tempted to rush through them all
  save some for another occasion if necessary.

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• POTENTIAL ENERGY
• Examples of stored or trapped energy
• A restraining component (chain/clamp) failing on
  a hydraulic lever e.g. Link-tilt mechanism on a
  Top Drive.
• A stuck drill string parting while jarring.
• A stand hanging up on the shoulder in rotary and
  bending due to weight from above (e.g. travelling
  block assembly or top drive unit).
• Retrieving a dropped stand from across the
  derrick using the air winch.
• Pulling a seat from the Mud Pump fluid end
  module.

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• POTENTIAL ENERGY
• Examples of stored or trapped energy (cont.)
• A joint of drill pipe hanging up on cat-walk
  while being lowered from drill floor.
• A break-out line failing while breaking out drill
  collars.
• Pipe-work flanges being dismantled
• Flexi-hoses / mud-lines being bent or
  disconnected etc.
• The air winch line hanging up while lowering or
  pulling. (also consider this happening during
  man-riding operations)
• Can you think of any
  more?

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• POTENTIAL ENERGY
• If you are not already doing so, please give this
  topic the attention it deserves during all TRICs
  and pre-phase / shift meetings.
• POTENTIAL ENERGY HAS THE POTENTIAL TO HARM YOU
  AND YOUR COLLEAGUES.
• THINK ABOUT IT NOW BEFORE IT GETS THE CHANCE!

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Training I nformation Powerpoint Presentation
Thank you for your attention!