The Most Important Questions For Oil Companies In The World




1-  What are factors affect the penetration rates?

a)   ………………………………………………
b)  ………………………………………………
c)   ………………………………………………
d)   ………………………………………………

2-  What is the problem in each of the following:

a)  Pressure drop while drilling
……………………………………
……………………………………
b)  You have losses while drilling and gain when pump stopped
…………………………………………
c)  Reduction of weight indicator reading while tripping out of hole
…………………………………………
d)  Reduction of weight indicator reading while tripping in hole
…………………………………………
e)  You have an influx and SICP is lower than SIDPP
…………………………………………
f)    You have pit gain, reduction in bottom hole pressure, no influx
……………………………………………………

3-  What is the maximum weight that can be used from the BHA for WOB? Why?

…………………………………………
…………………………………………

4-  Define the type of stuck related with the following?

a)High permeable formation, and thick filter cake.
……………………………………
……………………………………
b)Deviated wells, dog leg.
……………………………………
……………………………………
c) Unable to rotate, unable to circulate.
……………………………………
……………………………………
d)Unable to move up or down, unable to rotate, and able to circulate.
……………………………………
……………………………………
e)You can move down only then rotate, slightly circulation.
……………………………………
……………………………………

5-  What should you do in each of the following cases:

a)You have differential stuck
…………………………………………
b)You have mechanical stuck (tight hole)
…………………………………………
c)While pulling out of hole (tripping out) you got 50 
bbl. gai
…………………………………………
d) If you have stuck in salt formation
…………………………………………

6- What is the maximum allowable over pull while POOH in vertical and horizontal well
…………………………………………

7-  We can use separator while drilling instead of vacuum degassed? Why

a- True                                   b- false 

8- How to use top drive function to make a connection?
…………………………………………
………………………………………….

9- d) Different types of brake?

………………………………………… 

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10- What is the idea behind drill line slip & cut program? List all steps for making slip and cut?
………………………………………
…………………………………………
…………………………………………
…………………………………………

11- 1f connection gas is noticed while drilling, what would be considered to be a good drilling practices if an increase in mud weight is not an option at this time?

a. Flow check for longer during connection.
b.Increase drilling rate to get through zone quicker.
c.Control drilling rate to ensure only one slug of gas in annulus at any time.
d.Minimize connection time.
e.C & D.

12- Why should the well be closed in quickly after a kick has been detected?

Choose three
a.Minimize the influx into the well bore
b.Minimize the SICP
d.Minimize the bottom hole press.
e.Minimize the casing shoe pressure.

13- What is the most important step in blowout prevention once a warning sign has been detected?

a.Start circulation with pre calculated rate and kill the well with barite. 
b.Shut the blowout preventer
c.Pull to the shoe quickly.
d.Call the tool pusher and company man. 
e.Close the well in properly

14-If the formation pressure gradient increases from 0.60 psi/ft at 12000 ft to 0.62 psi/ft at 12700 ft, and the mud weight is 12 ppg through the interval, the

a.Overbalance increases by about 288 psi
b.Overbalance remains constant since mud weight not changed
c- Overbalance is reduced by 51 psi
d.Overbalance is reduced by 237 psi

15-  If the negative pressure loss is 100 psi while pulling pipe, and if the formation pressure gradient 0.75 psi/ft at 9000 ft , and the mud gradient 0.764 psi/ft the well would:

a.Flow and require a higher trip margin
b.Would remain static throughout the trip. 
c.Flow when pump stop
d. Be over pressured and lost circulation occurs
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19-  Pump stroke counter is the accurate to measure the mud to keep the hole full when P.O.O.H.

a )true                            b )false

20- On mud pump, oil level for both gear box and chains should be checked

a-  Weekly               b-     Daily                c- Each Tour

21- Pump speed increases as the pressure loading is:

a-    Decreased          b-   Increased

22- It is Okay to install a worn valve in a new seat.

a-      False           b-    True

23- The sand trap compartment below the shale shaker is a very important part of the mud /solids separation.

a-  False          b-  True

24- Which of the following should increase by increasing bit weight?

a- Penetration rate.                                          b- Hole deviation.
c- Tooth and bearing wear rate.                      d- Hydraulic horsepower.

25-What causes chip hold down?

a- The greater compressive strength of older rock formation
b- A high differential pressure between the mud and the formation c- Excessive weight on a dull bit.
d- All of the above.

26- What are the causes of shale to sloughs into the hole?

a ) Mechanical vibration of drill string .
b ) In-correct mud parameter ( high water loss and mud weight )
c ) Deviation angle . d ) All the above .

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27- Why drillers do break circulation going in hole?
…………………………………………
…………………………………………

28- The driller’s decision to pull a worn drill bit should be based on:

a- Other bit records in the area.                 
b- The rotary torque requirements. 
c- The drilling rate                                        
d- All of the above.

29- If the mud checked with V-G meter and the following numbers recorded, at 600 RPM is 85 & at 300 RPM is 50 .What would the yield value be ?

a- 25  LB.F/100 FT2                     
b- 35  LB.F/100 FT2
c- 5  LB.F/100 FT2    
d- 15  LB.F/100 FT2

31-  When gas is percolating the correct gauge to monitor / to maintain constant BHP during the weighting up period is:

a.Casing pressure gauge
b.Drill pipe pressure gauge
c.Bottom hole pressure gauge
d.Company man’s pressure gauge

32- When a kick is detected while pulling out of the hole :

a. The well secured, pressures and gain recorded, back pressure valve
b.installed , and if bop condition and arrangement permits, strip back to bottom. 
c.The well should be shut in and killed at this depth based on closedin pressure. d.  The well-secured safety valve installed & pipe stripped to bottom.
e.   If over half way out of hole , finish trip and pick up new bit and Back to bottom quickly.

33- Surface inside BOP equipment (Kelly safety valve) should 
not be tested when BOP’s are tested.

a- False                                                b- True

34- If the annulus and drill pipes are in communication, a choke adjustment on the annulus will reflect a change on the drill pipe side.

a- False                                                b- True

35- If the viscosity is low and if the drilling assembly is not balled up there is no negative pressure loss.

a- False                                                b- True

36- Vacuum pump on the degasser compresses gas inside the vacuum tank.

a- False                                                b- True

37-  When the three way valve is fully open, the vacuum in the vacuum tank is broken and less mud pulled in.

a- False                                                            b- True

38-  The main purpose of the discharge jet is to remove gas from the mud.

a- True                                                             b-  False

39-  The main purpose of the baffle plate in vacuum degasser is to allow the mud to form as a thin layer so the vacuum can pull gas out of the mud.

a-  False                                                          b-  True

40-  Use an “S” to indicate which of the following statements apply to soft formation bits or “H” to indicate statements applies to hard formation bits.

a-  . . . .A long tooth bit
b-  . . . .It can be safety used at high RPM
c-  . . . .It can damage drill pipe and itself if rotated too fast


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