FlexiQuiz - WELL CONTRACTORS CERTIFICATION CONSTRUCTION STANDARDS QUIZ1

When a repair is performed on a well the following must be adhered to:

Wellhead must remain at least 12 inches above surface

The grout removed must be replaced

All materials used in repair must be approved

All of the above

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 is the purpose of a seal on a gravel pack

Close the annular space between the top of the extension pipe and the inside of the well casing installed in the upper portion of the well

Prevent upward movement of the gravel when the well is pumped

To allow the flow of gravel into the annular space when well is in use

Both A & B

What are the most important things when choosing material for a screen:

Mineral content of the water

Presence of bacterial slimes

Strength requirements of the screen

All of the above

A necessary final step in well completion is __________ to eliminate bacteria

Washing

Disinfecting

Sanitizing

None of the above