FlexiQuiz - WELL CONTRACTORS CERTIFICATION CONSTRUCTION STANDARDS QUIZ1

In the case of gravel-packed wells in which the casing and screens have not been removed and abandoning the well:

Neat cement shall be injected into the well

Bentonite slurry grout shall be injected into the well

A or B

None of the above

The identification plate shall not be removed

True

False

Grout shall extend outward in all directions from the casing wall to a minimum thickness equal to either _________of the diameter of the outside dimension of the casing or ____ in, whichever is greater

1/4, 4 in

1/3, 6 in

1/3, 2in

1/5, 1in

What are reasons a well screen might be pulled

Removal of encrusting of materials on the screen that cannot be removed from chemical treatment

Corrosion of the screen allowing sand to enter water

Abandonment of the well and retrieval of parts

All of the above

What are two differences in drilling into soft formation versus rock?

Pipe or casing must follow the drill bit closely

Casing has to be driven

The drilling effect of the bit is a loosening/mixing action

All of the above