Permit To Work

Failure of the Permit To Work system can never result in a catastrophic event since there are always other safeguards in place.

• True

• False

Site Gas Test is used to:

• Check the location utility systems are working

• Establish if equipment is isolated from its power source

• Establish if safety systems need to be removed

• Certify the atmospheric conditions in a confined space

A cold work permit is required:

(Select all correct answer)

• In all work areas if the work involved a potential source of ignition

• For all electrical work where there is a threat to life

• For work in hazardous areas where there is no reasonable source of ignition

• For confined space entry

A copy of a PTW is normally held by/ posted:

• By the person who completed it and posted in the tea room

• By the HSE representative and posted on the HSE noticeboard

• By the Person In Charge of the Work and posted in their office

• By the Permit Holder, with a copy held by the Person In Charge of the work, and posted on the location Permit To Work notice board

Once established a Permit to Work can never be changed or suspended

• True

• False

A PTW provides a formal hand-back procedure to ensure that any part of the site or facilities affected by the work is in a safe condition and ready for return to service.

• True

• False

On client facilities, where the client has a PTW system in place, Schlumberger personnel must always use a Schlumberger Segment PTW system.

• True

• False

When is a Permit To Work needed?

• When the intended work may adversely affect personnel, the environment or the site/installation

• Non-routine activities

• Complex multi group activities or SIMOPS (Simultaneous Operations).

• All of the above

A hot work permit is required for tasks in hazardous areas, if the work involves a potential source of ignition, or flame.

• True

• False

The Permit To Work Authority shall visit the work site before work starts to ensure it is safe to start work and to inspect the worksite before closing the PTW.

• True

• False