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2007-12-02 02:35:26 · 5 answers · asked by Anonymous in Science & Mathematics Engineering

5 answers

ground labourers for sure. way too many things to go wrong from sour gas to suspended loads. i have seen cables on a side-boom snap and drop the pipe. when working near a well-head and there is no wind the H2S gas will settle in the ditch or in depressions. i watched a fellow get spat out by a rotary ditching machine.
the most important thing when pipelining is to get to know the operators you work with and keep constant eye contact with them. they need to know where you are and what your intentions are. with all the noise of machinery running being able to communicate with hand signals is very important. make sure that only one person on the ground is guiding the operator and be aware of the others on the ground to make sure they know what is going on as well.
i pipelined in Alberta for 8 years and have seen some terrible things happen so no matter what your position is be very careful and remember you are working as a team.

2007-12-02 02:54:23 · answer #1 · answered by Anonymous · 0 0

Just about any job related to leak repair crews. They go into situations that they don't always know what is what.

If you are an equipment operator, back hoe, dozer, etc. you run the risk of rupturing a pipe under pressure or full of a flammable fluid. The exact location of any pipeline is not always know as well as you would think.

If you are a welder or welders helper, when you strike an arc or fire up your torch, you can't be 100 percent sure all flammables have been taken care of.

Even a forman or labor who might be nearby is subject to the same risks.

Look at the most recent event in Minnesota.

2007-12-02 11:14:36 · answer #2 · answered by oil field trash 7 · 0 0

Maintenance men who have to change out a major fitting (like a large valve). Every effort must be made to isolate, drain, degas and inert (generally with N2), before breaking open the line. Also, if H2S has been in the product in the pipeline, FeS (Iron Sulphide) may be coating the inner walls of the pipe.
This is a 'Pyrophoric' sulphur compound and can spontaneously combust in air. It's been known to cause large pipeline explosions due to improper and careless work practices. (Keeping the area wet and cool with plenty of water is a deterrent to this).

2007-12-02 13:59:14 · answer #3 · answered by Norrie 7 · 0 0

I think those who work in Sewage Pipe Lines have great danger involved in their night shift work.Similarly, there are people working in some construction sites , such as building Dams and Offshore Drilling for Oil have to through very dangerous and risky venture , especially in the third world countries where modern safety measures are hardly in practice .

2007-12-02 11:28:23 · answer #4 · answered by bikashroy9 7 · 0 0

The person working with machine or anything that rotates.

2007-12-02 10:38:20 · answer #5 · answered by logsdodl 5 · 0 0

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