Top 20 Toolpusher Interview Questions and Answers



1- Tell me about a number of wells and max depth you drilled?

2- Tell me about number and sizes of casing you used?

3- Tell me about number and sizes of casing you 
used?

4- What instructions do you give the drilling if going to drill high-pressure formation?
- Keep an eye on Mwt, set alarms, flow check if any doubts or drilling breaks, shut the well in if positive, make sure BOP and manifold lined up....etc.

5- Tell me what you know about LOT? 
- Drill 10-15' new formation, circulate for even mud, pull inside 
shoe, use cmt pump to get L.O.PRESS

6- Tell me the different methods to kill the well?


Important Exam For Floorman, Derrickman and Driller

7- What records do you keep on the rig?
- Safety records. drills, well control equip certificates, inventory of subs &fishing tools, reports, maintenance....etc.

8- What types of drilling fluids you use on the rig?
- Oil base, water base, brine water

9- Why do we use oil base muds?
- To avoid contaminating pay zones

10- How often you test BOP & at what pressures?

11- What safety meetings do you attend on the rig?
- pre-job, praetor,pre-rig move, pre-spud, LPT...etc.




Schlumberger Exam for Roustabout ,Floorman ,Derrickman And Driller

12- how often you test BOP & at what pressures?

13- what is L.O.PRESS useful for while killing a well?

14- why do we use oil base muds?
To avoid contaminating pay zones

15- what is L.O.PRESS useful for while killing a well?
- to know MAASP, MAMWT, and when influx is below shoe we don't allow the surface press to increase more than maasp. but 
when influx is inside casing we can allow that.

16- what instructions do you give the drilling if going to drill high-pressure formation?
- keep an eye on Mwt, set alarms, flow check if any doubts or drilling breaks, shut the well in if positive, make sure BOP and manifold lined up...etc.


17- What stacks you have and press rating?

18- How often you test BOP & at what pressures?
-every 2 weeks. May have 2 days extension. ..300/12500 psi

19- What about EDC definition?

20- What is swabbing definition and means in oil and gas industry?

This answers provided by Eng Baher Global Energy talent :


Derrickman interview questions with answers