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PUMP 6003_Artificial Lift - Progressive Cavity Pumps

C - Standing valve

D - Controller

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Question 16:

The plunger lift system component labeled "E" in the diagram is called:

A - Pig

B - Separator

C - Lubricator

D - Bumper

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Question 18:

In servicing a plunger lift system, the pig must be periodically removed from the _______________, to inspect the pig seals.

A - separator

B - wellhead lubricator

C - stock tank

D - bumper

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Question 19:

Which of the following is a disadvantage of using a gas lift system?

A - Not affected by wellbore deviation

B - Major component (gas compressor) is installed at the surface

C - Works best with minimized wellhead pressure

D - Capable of handling sand (in most cases)

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Question 20:

When a well is first drilled into the reservoir, it creates an opening through which the reservoir fluids can escape and flow to surface facilities. This flow happens because pressure is:

A - Higher in the reservoir than at the surface

B - Lower in the reservoir than at the surface

C - None of the above

D - The same at reservoir and surface levels

PUMP 6003_Artificial Lift - Progressive Cavity Pumps

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Question 1:
If the wellhead drive for a progressive cavity pump is a direct electric drive system, daily checks should include:
A - Hydraulic fluid level check
B - Check for correct pressure differential across the oil filters
C - Belt tension
D - None of the above
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Question 2:
The progressive cavity pump system device that is run as part of the tubing string at, or near, the bottom of the hole to balance the torque produced by the clockwise rotation of the sucker rods is called a:

A - Torque anchor
B - Rotating wellhead
C - Rotating anchor
D - Torque reducer
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Question 3:
Which of the following components does a progressive cavity pump use to transfer fluids?

A - Casing and impeller
B - Cylinder and piston
C - Housing and gears
D - Rotor and stator
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Question 4:
When setting a progressive cavity pump, the service rig should pick the rod string up 500 mm above string weight. This allows for:

A - Correct placement of the rod coupling in the top of the stator rubber
B - Increased rod weight
C - Proper distance between the rotor and the tag bar
D - A 500 m piece of sucker rod
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Question 5:
There is a variety of sucker rod couplings available to help reduce rod and tubing wear in a progressive cavity pump system. In the system, these couplings become the:

A - Process variable
B - Essential component
C - Torque anchor
D - Sacrificial component
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Question 6:
The main advantage of a progressive cavity pump hydraulic drive unit is that the amount of torque on the rod string can be monitored by watching the:

A - Hydraulic pressure gauge
B - Drive belt tension
C - Motor speed
D - Rod string tension
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Question 7:
Progressive cavity pumps:

A - Develop pump head by the propelling action of blades on the liquid
B - Use a rotating screw in a stator to force fluid through the pump
C - Use centrifugal force to develop velocity in a liquid being moved, the velocity is consequently converted to pressure
D - Use the reciprocating motion of plungers to move the liquid through the pump
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Question 8:
In a progressive cavity pump system a tag bar is welded across the bottom of the stator. This device aids in finding bottom when running the rods and rotor in the hole. These tag bars are placed 250 to 500 mm:

A - Beside the stator rubber
B - Above the stator rubber
C - Below the stator rubber
D - Inside the stator rubber
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Question 9:
When setting a progressive cavity pump, the stator is run in as part of the ___________________ while the rotor is run in as part of the ________________.
A - Rod string, tubing string
B - Tubing string, rod string
C - Stator rubber, tag bar
D - Tag bar, stator rubber
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Question 10:
The displacement of a progressive capacity pump varies with the size of the:

A - Rotor
B - Stator
C - Compressor
D - Progressive cavity
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Question 11:
You should always assume that your progressive cavity pump wellhead drive is fitted with a means to release sucker rod torque on a stopped unit.

A - True
B - False
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Question 12:
When running the rods and rotor of a progressive cavity pump in the well, a ______________ is welded across the bottom of the stator which aids in finding the bottom of the hole.

A - tag bar
B - torque anchor
C - shear pin
D - clamp
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Question 13:
If a progressive cavity pump is to produce the required pressure, the stator should always have the rotor:

A - Completely above it
B - Partially through it
C - Completely through it
D - Completely below it
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Question 14:

Some progressive cavity pumps are driven by a direct drive unit that has an electric motor mounted on a gearbox on the wellhead. To ensure that the rods do not become over-torqued when sand-up occurs, the drive is usually equipped with:

A - V-belts

B - Sheaves

C - A hydraulic pressure gauge


Date: 2015-12-11; view: 809


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