who can plug an abandoned well
DESCRIPTION
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. - PowerPoint PPT PresentationTRANSCRIPT
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