Energy Isolation SIF Examples

Identifying serious injury or fatality (SIF) events involves some subjectivity, but these incidents can provide a key learning opportunity for the industry.  Below are examples of types of incidents that may occur under the IOGP Life-Saving Rule Energy Isolation, broken out by actual and potential SIF and incident type.   This list is not exhaustive, but it is provided to assist the OSA participant in understanding how incidents may be classified.    

 

IOGP Life-Saving Rule: Energy Isolation

 

Event

 

 

Operation Type

 

Incident Description

 

Incident Type

 

Potential

 

Drilling

 

Driller was drilling utilizing Manage Pressure Drilling (MPD). The employees observed that the rotating head assembly was leaking and notified the driller. The company man and driller discussed stopping the drilling operations to change out rotating head assembly. The company man talked to the Driller and discussed that they would change out rotating head by shutting the annular to hold backpressure. Then the trapped pressure between the annular and rotating head was to be control released through MPD. The company man told the driller to gather everyone up and get it done. The Driller failed to utilize a pre-job safety meeting with employees before performing the task. Then the driller motioned for a short service employee (SSE) to go down to BOP deck. SSE proceeded to unlatch rotating head clamp causing the uncontrolled release of trap pressure. No injuries or damage occurred but there could have been a potential for a SIF. The SSE assumed he was sent down to unclamp the rotating head since this was the way it was done the last time. The driller failed to gather everyone and conduct a pre-job safety meeting or review 3rd party job safety analysis (JSA). It was discussed with the driller of the importance of JSA procedures before performing a task.

 

 

Energy Source

 

Potential

 

 

Drilling

 

Electrician was in the process of repairing damaged cable to accumulator light when he was shocked by light cable . He stopped the job and assessed that light had been turned on to power sub and derrick lights. He relocked out transformer to the motor control center and spoke to employee about better communicating with electricians.

 

 

Electrical

 

Potential

 

 

Production

 

A mechanic was observed breaking open a flange on a pump system while on location. The correct valves were closed but not locked or tagged.

 

 

Energy Source

Near Miss

 

Potential

 

 

Production

 

Electricians were troubleshooting the commissioning of a new pump and attempted to correct a wiring issue while the Motor Control Center was energized with 380-volt power. The electricians did not stop to install lock out/tag out (LO/TO) or verify if the system was de-energized.The electricians were also not wearing the proper PPE that is required while working inside an electrical panel.The work was stopped before an incident occurred.

 

 

Energy Source Near Miss

 

Potential

 

 

Production

 

While preforming a circuit walk down inspection of the switchgear prior to reenergizing, it was found that the contractor electricians had applied their energy isolation locks incorrectly to a 480-volt breaker.If the switchgear had been energized, the circuits downstream of the breaker would have also been energized, potentially endangering personnel. The electricians were called back to remove their locks and shown the correct way to lock out the breaker.The breaker was opened and zero energy was verified before the switchgear was reenergized.

 

 

Energy Source

Near Miss

 

Potential

 

 

Drilling

 

A contract crew was pumping a one stage frac job when a screw on the blender unit jammed.A worker climbed into the hopper on top of the sand to clear the jam when the unit began pulling his foot into the screw. The blender was immediately shut down and the worker was pulled out of the hopper.The worker required stitches to the ride side of his foot but did not sustain a more serious injury.

 

 

Energy Source