who can plug an abandoned well. overview introduce the common methods used to construct wells....
TRANSCRIPT
Who Can Plug an Abandoned Well
Overview
• Introduce the common methods used to construct wells.
• Discuss the different types of wells
• Discuss what types of wells a landowner plug.
• Discuss reasons for hiring a contractor.
• Conclusion
Introduction
• There are many different types of well construction methods.
• The method used for each well depends on geological formations.
What are the common methods used to construct water wells?
• Hand dug
• Driven
• Drilled
Well Construction Techniques
• There are eight different types of well construction techniques.
Type I – Dug Well Land Surface
Open Hole
Total Depth
Sealed Rock or Brick Lining as Casing
Type II – Drilled WellLand Surface
Casing
Open Hole
Total Depth
Seal
Cemented Annulus
Type III – Drilled Well
Cemented Annulus
Smaller Casing
Total Depth
Land Surface
Casing
Open Hole
Seal
Type IV – Drilled Well
Casing with Selected, Perforated, Slotted, or Screened Intervals
Cemented Annulus
Land Surface
Casing
Total Depth
Seal
Gravel or Sand Pack
Type V – Drilled Well
Casing with Selected, Perforated, Slotted, or Screened Intervals
Cemented Annulus
Land Surface
Casing
Total Depth
Seal
Gravel or Sand Pack
Open Hole
Seal
Type VI – Drilled Well
Total Depth
Cemented Annulus
Land Surface
Large Casing
Smaller Casing with Selected, Perforated, Slotted, or Screened Intervals
Type VII – Drilled Well
Casing with Selected, Perforated, Slotted, or Screened Intervals
Cemented Annulus
Land Surface
Casing
Total Depth
Seal
Gravel or Sand Pack
Seal
Type VIII – Drilled WellLand Surface
Total Depth
Casing
Gravel or Sand Pack
Casing with Selected, Perforated, Slotted, or Screened intervals
What type wells can a landowner plug?
• A landowner can plug type I-V wells, assuming there is less than 100 feet of standing water in the well.
Even with a type I-V well, why might it be better to hire a
contractor?• A contractor may have better equipment
and understanding of the geology conditions that affect how the well should be plugged.
Conclusion
• Landowners have the authority to plug type I-V wells if there is less than 100 feet of water in the well.
• Only licensed well drillers should plug type VI-VIII wells.
• In some cases it may be better to hire a contractor for type I-V wells