Oil & Gas Services interview questions | Glassdoor

# Interview Questions

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## Interview Questions

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### Automotive Technician at Valvoline was asked...

Jul 19, 2011
 what is your most preferred work environment? Busy or slow? 2 Answers I prefer busy but I excel in either environments. it depends on the work if the work is needed to slow to make it safe and successful work.

### Seismic Programmer at CGG was asked...

Jul 2, 2010
 What is the probability of having 2 persons' birthdays on the same day. 2 Answers 1/365 supposing that there are totally n people, the probability that 2 persons' bday are not on the same day is 365*364*...*(365-n+1)/365^n, therefore, the probability of having 2 persons' bday on the same day is 1- 365*364*...*(365-n+1)/365^n. It depends on the number of people (n), if there are a large number of people in this pool, then the probability will be bigger.

### Seismic Programmer at CGG was asked...

Jul 2, 2010
 Given a triangle and a point, how do you tell if the point is inside the triangle or outside? Extend this for a irregular polygon 2 Answers I solved it using angles this article suggests an interesting answer http://alienryderflex.com/polygon/

### Field Engineer at Schlumberger was asked...

Dec 13, 2011
 If you placed a perforating gun 2000 ft underneath the ground and ignite the charge. Which direction would it blast? If you were do the same, but the depth was 200 ft, would you expect the same direction? Why? 3 Answers would you mind to tell me were i can find the answer ? Where is the oxigen that is needed to ignite? don't you aim perf guns? Perhaps he is looking for the direction of the least horizontal stress in the earth ?

### Analyst at Enterprise Products was asked...

Oct 22, 2014
 Nothing exceptionally challenging, each interviewer has something different that they are looking for so make sure to cater to their needs. 1 Answer Be knowledgeable of each interviewer and what part of the company they come from.

### Assistant Training Officer at Oceaneering International was asked...

Nov 1, 2013
 Why are manhole covers round? 1 Answer It is impossible for them to fall through.

### Manufacturing Engineer at Schlumberger was asked...

Jan 17, 2013
 Provide a brief speech (~5 - 10 min) in front of other candidates, introducing yourself and mention why you want to work for Schlumberger. 1 Answer be yourself - go towards the beginning or you'll have heard some pretty good ones; if you do go later, the old "and to candidate x's point, I agree, and would like to add y" - troubleshooting, strong work ethic, adventure seeking, enjoy travel, like the outdoors, reputation of company are things you might mention, but if you would consider working at a tech center you might want to add that in your presentation.

### Field Engineer at Schlumberger was asked...

Jan 17, 2013
 How would you distinguish two different cups of water if you had to pour both of them into a large bowl 1 Answer I suggested adding some kind of hydrophobic additive to separate the layers

### Motor and at Ensign Energy Services was asked...

Mar 16, 2015
 Do you know anybody that works on the rigs 1 Answer Yes

Feb 18, 2015