1 drilling and wells geology 210 kent e. parrish, p.g., c.hg urs corporation october 29, 2009
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1
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
Drilling Techniques
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• Define use• Understand subsurface• Choose appropriate
technique
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Drilling Techniques
• Solid flight auger
Driscoll, 1986
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Drilling Techniques
• Bucket auger
Driscoll, 1986
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Drilling Techniques
• Cable tool rig
Driscoll, 1986
8
Drilling Techniques
• Cable tool rig
Driscoll, 1986
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Drilling Techniques
• Dart bailer
Driscoll, 1986
10
Drilling Techniques
• Bottom flap bailer
Driscoll, 1986
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Drilling Techniques
• Air rotary drilling
Driscoll, 1986
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Drilling Techniques
• Air rotary clyclone
Driscoll, 1986
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Drilling Techniques
• Casing hammer
Driscoll, 1986
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Drilling Techniques
• Conventional rotary drill rig
Driscoll, 1986
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Drilling Techniques
• Mud pit
Driscoll, 1986
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Drilling Techniques
• Dual tube reverse rotary drilling
Driscoll, 1986
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Drilling Techniques
• Drill collar stabilizer
Driscoll, 1986
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Drilling Techniques
• Drag bit
Driscoll, 1986
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Drilling Techniques
• Tricone rotary tooth bit
Driscoll, 1986
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Drilling Techniques
• Reaming bitsDriscoll, 1986
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Drilling Techniques
• Fishing tools
Driscoll, 1986
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Logging Techniques
Logging Techniques
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• Lithologic• Geophysical• Video
Logging Techniques
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• 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
Well Design
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• Purpose of well• Water Supply• Contaminant Extraction• Monitoring• Injection• Vadose Zone
Monitoring• Soil Vapor Extraction
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
Well Design
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Rosco Moss Company, 1990
Well Design
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Rosco Moss Company, 1990
Well Design
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Rosco Moss Company, 1990
Well Design
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Rosco Moss Company, 1990
Well Design
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Rosco Moss Company, 1990
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Well Construction
URS
Well Design
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Rosco Moss Company, 1990
Well Design
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Rosco Moss Company, 1990
39
Rosco Moss Company, 1990
Well Design
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Rosco Moss Company, 1990
Well Design
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Rosco Moss Company, 1990
Well Design
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Rosco Moss Company, 1990
Well Design
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Rosco Moss Company, 1990
Well Design
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Rosco Moss Company, 1990
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Multiple Monitoring Well Screens
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• Waterloo multiple ports• Westbay multilevel well• Multiple completion monitoring well
Multiple Monitoring Well Screens
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• Westbay multilevel well
Multiple Monitoring Well Screens
http://www.swstechnology.com/groundwater-monitoring/multilevel-well-system/westbay-system-well-
completion
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Rosco Moss Company, 1990
• Multiple completion monitoring well
Well Design
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URS
• Multiple completion monitoring well
Well Design
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Rosco Moss Company, 1990 Nakamoto et al., 1986
Multiple Completion Monitoring Wells
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Nakamoto et al., 1986
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Multiple Completion Monitoring Wells
Nakamoto et al., 1986
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Summary
• Safety First! Always. Don’t 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?
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