Drilling and Wells

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Drilling and Wells

• Geology 210
• Kent E. Parrish, P.G., C.Hg
• URS Corporation
• October 29, 2009

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Lecture Outline

• Safety First!
• Drilling Techniques
• Logging Techniques
• Well Design
• Well Construction
• Multiple Well Screens
• Summary

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Safety First!

• Taligate safety meeting
• Safety controls the job

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Drilling Techniques

• Define use
• Understand subsurface
• Choose appropriate technique

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Drilling Techniques

• Solid flight auger

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Driscoll, 1986
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Drilling Techniques

• Bucket auger

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Driscoll, 1986
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Drilling Techniques

• Cable tool rig

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Driscoll, 1986
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Drilling Techniques

• Cable tool rig

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Driscoll, 1986
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Drilling Techniques

• Dart bailer

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Driscoll, 1986
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Drilling Techniques

• Bottom flap bailer

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Driscoll, 1986
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Drilling Techniques

• Air rotary drilling

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Driscoll, 1986
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Drilling Techniques

• Air rotary clyclone

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Driscoll, 1986
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Drilling Techniques

• Casing hammer

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Driscoll, 1986
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Drilling Techniques

• Conventional rotary drill rig

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Driscoll, 1986
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Drilling Techniques

• Mud pit

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Driscoll, 1986
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Drilling Techniques

• Dual tube reverse rotary drilling

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Driscoll, 1986
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Drilling Techniques

• Drill collar stabilizer

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Driscoll, 1986
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Drilling Techniques

• Drag bit

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Driscoll, 1986
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Drilling Techniques

• Tricone rotary tooth bit

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Driscoll, 1986
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Drilling Techniques

• Reaming bits

Driscoll, 1986
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Drilling Techniques

• Fishing tools

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Driscoll, 1986
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Logging Techniques
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Logging Techniques

• Lithologic
• Geophysical
• Video

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Logging Techniques

• Lithologic logging

www.gulfsideminerals.com/images/e3.jpg
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• Lithologic borehole log

www.gulfsideminerals.com/images/e3.jpg
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• Geophysical log

Rosco Moss Company, 1990
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• Video

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Well Design
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Well Design

• Purpose of well
• Water Supply
• Contaminant Extraction
• Monitoring
• Injection
• Vadose Zone Monitoring
• Soil Vapor Extraction

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Vital Things to Supply Well Design

• Casing and Borehole Designed from the Inside-Out
• Purpose of the Well
• Pump Size
• Casing Screen Diameter
• Annulus Tubing String and Material Needs
• Borehole Size
• Surface Casing Size
• Surface Borehole Diameter
• Screen and Filter Pack Designed from Outside-In
• Sieve Analysis
• Filter Pack
• Well Screen

URS
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Well Design
Rosco Moss Company, 1990
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Well Design
Rosco Moss Company, 1990
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Well Design
Rosco Moss Company, 1990
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Well Design
Rosco Moss Company, 1990
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Well Design
Rosco Moss Company, 1990
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Well Construction
URS
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Well Design
Rosco Moss Company, 1990
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Well Design
Rosco Moss Company, 1990
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Rosco Moss Company, 1990
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Well Design
Rosco Moss Company, 1990
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Well Design
Rosco Moss Company, 1990
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Well Design
Rosco Moss Company, 1990
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Well Design
Rosco Moss Company, 1990
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Well Design
Rosco Moss Company, 1990
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Multiple Monitoring Well Screens
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Multiple Monitoring Well Screens

• Waterloo multiple ports
• Westbay multilevel well
• Multiple completion monitoring well

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Multiple Monitoring Well Screens

• Westbay multilevel well

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http//www.swstechnology.com/groundwater-monitorin
g/multilevel-well-system/westbay-system-well-compl
etion
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• Multiple completion monitoring well

Rosco Moss Company, 1990
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Well Design

• Multiple completion monitoring well

URS
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Well Design
Rosco Moss Company, 1990
Nakamoto et al., 1986
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Multiple Completion Monitoring Wells
Nakamoto et al., 1986
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Multiple Completion Monitoring Wells
Nakamoto et al., 1986
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Summary

• Safety First! Always. Dont compromise - ever
• Planning is key
• Write down what you are doing
• Be prepared
• Document the job
• Have fun!

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References

• Driscoll, F.G., 1986, Groundwater and Wells,
  Johnson Division, St. Paul, MN, 1089 p.
• Nakamoto, D.B., F.R. McLaren, and P.J. Phillips,
  1986, Multiple Completion Monitor Wells, Ground
  Water Monitoring and Remediation, Volume 6, Issue
  2, p. 50-55.
• Rosco Moss Company, 1990 Handbook of Ground Water
  Development, John Wiley Sons, Inc., New York,
  NY, 493 p.

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Questions?