4th Class_Horizontal drilling technology
Physics
University
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8 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 10 pts
Select a correct name of the part shown in the figure.
Kick off point
Horizontal section
Vertical part
End of curve
2.
MULTIPLE CHOICE QUESTION
45 sec • 10 pts
How many degrees or more the horizontal section has to be at an angle to the vertical section to be defined as a horizontal well?
> 70º
> 75º
> 80º
> 85º
3.
MULTIPLE SELECT QUESTION
2 mins • 20 pts
Select all the correct advantage(s) of horizontal well compared with vertical well
Decreasing the drainage area
Improving productivity in shallow reservoir
Escalating the gas/water coning problems
The cost of horizontal drilling is cheaper than that of vertical drilling
Improving productivity in fractured reservoirs by intersecting a numbers of vertical fractures
4.
MULTIPLE SELECT QUESTION
2 mins • 20 pts
Select all the correct disadvantage(s) of horizontal wells.
Low overall current commercial success rate.
Only one zone at a time can be produced using a horizontal well.
Hole cleaning and Frictional forces.
More costly than vertical wells.
5.
MULTIPLE CHOICE QUESTION
45 sec • 10 pts
How much higher is the cost of horizontal drilling than that of the same length of vertical drilling?
1.5 to 2.5 times higher
2.5 to 3.5 times higher
3.5 to 4.5 times higher
4.5 to 5.5 times higher
6.
MULTIPLE CHOICE QUESTION
1 min • 15 pts
How can the drill bit be rotated in the horizontal drilling?
by the turn table
by the electric motor
by the downhole mud motor
by the mental power of drilling engineers
7.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
How can the drilling direction be changed in the horizontal drilling?
by using the psychokinesis
by using the soft drilling pipes
by using curved drilling pipes
by installing the bent sub between the drilling pipe and downhole motor
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