Page 411 - Practical Well Planning and Drilling Manual

Section 3 revised 11/00/bc 1/17/01 12:00 PM Page 387

Casing [ ]
3.4.3

assist good mud displacement. If you have the tank capacity it would
save time if after circulating clean, ready conditioned mud could be
displaced into the open hole from a reserve tank rather than circulat-
ing to condition mud for one or more circulations.
On the last trip out of the hole, strap the pipe with a steel tape.
Confirm that the pipe tally is correct.
Rig up all the equipment, change and pressure test the top pipe
rams, if necessary, and when ready to pick up the first joint hold a pre-
job safety meeting on the drillfloor. It is better to have the driller orga-
nize and lead this meeting (since the driller will be present throughout
the job), but the toolpusher/night pusher, drilling supervisor, and
drilling engineer should all be present. Following are some ideas for
items to cover in this meeting.
Safety precautions (pre-job safety meeting topics). The following
can be used as a checklist of areas to cover on the pre-job briefing:

1. A good safe job is required; work efficiently without rushing.
2. All the correct safety equipment is to be used: safety belts at height,
etc.; there will be no exceptions.
3. The on-shift driller has overall responsibility for the job. Any prob-
lems are to be reported to the driller, and if the problem cannot be
solved, the toolpusher/drilling supervisor must be alerted by the
driller. The driller should know the maximum pull that can be
applied to the casing if it gets stuck.
4. Watch out for pinch points: fingers or hands getting trapped
between moving and stationary equipment, such as casing coming
up the V-door.
5. Keep the drillfloor reasonably clean to prevent tripping and slip-
ping hazards.
6. No one is to use the V-door stairs when a joint of pipe is being
moved between the catwalk and the drillfloor or being picked up
by the single joint elevators.
7. When you change shift, make sure you hand over your job to your
relief, then stop and watch their work for a few minutes to make
sure they are doing the job properly.
8. Any unsafe conditions must be corrected immediately. Watch out
for ropes on the V-door and stabbing board getting worn and
change in good time. Keep an eye on lifting slings and strops.

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