Bob Morse, Univ of WisconsinWBS 1.2---Implementation

Berkeley MeetingMar 19-23, 2005

Logistics, Drilling, Deployment

Mar 19-23, 2005Berkeley

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Implementation-Introduction

• Field Season Strategic Planning • Logistics—Terry Hannaford• Drilling—Alan Elcheikh, Jeff Cherwinka• Installation---Tom Ham• Counting House• Operations Liaison---NSF, RPSC• Training of Seasonal Drillers, Installers• Training Platforms—PSL (Madison)

Mar 19-23, 2005Berkeley

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Drill Improvements2005-06—PSL Work Plan

• Plans for getting thereIssues

People

Resources

Testing and training

• Organization• Schedule• Stay focused on goals

Mar 19-23, 2005Berkeley

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Goals for 2005-2006

• Set up as early as possible up to Dec 10• 7 week drill/deploy period (Dec11, Jan 28)• Target drill speed 48 hrs/hole, including firn • Target deploy speed 24 hrs/hole• Use both towers to leapfrog• 2 strings per week• Drill and deploy 10-12 strings

Mar 19-23, 2005Berkeley

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Drill performance issues

• Speed limitations (deep drill and firn)• Second tower (shipped) • New crescent• Drill control software• Set up and hole-to-hole move• Fuel delivery systems• Generators

Mar 19-23, 2005Berkeley

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Drill reliability issues

• Motor drives and controls• Drill supply hose• Flow, temperature and pressures sensors• Heaters• Condensate pumps• E-stop false events• Weight stack• Load cells• Communication networks• Reels and reel brakes

Mar 19-23, 2005Berkeley

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Personnel

Now:• Alan Elcheikh• Jeff Cherwinka• Terry Matt• Mark Thoma• Lee Greenler• Brian Pechan• Farshid Feyzi• Jack Ambuel • Ted Shultz• Chuck Rentmeesters• Harold Mattison• Carl Baumann• Phil Robl• Robin Bolsey• Dave Pernic• Alan Rogers• Dave Scott• Jim Koehler• Terry Hannaford• Tom Ham

Soon• Dennis Duling• New programmer• Drillers

Outside help • Ice-water interface modeling• UNICO solutions review• Software assessment

Bob Morse’s group• Newt Ganugapati

• Varun Gopalakrishna• Anupam Singh

Students:

• Peter Hoeft

• Scott Haman

• Terry Benson

• Brian White

• Aaron Kurth

Mar 19-23, 2005Berkeley

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Resources

• Full access to PSL shop and staff• EHWD test area is still available• EHWD test equipment• 250 ft deep hole for hose test

Mar 19-23, 2005Berkeley

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Testing and Training

• Setting up software development and testing facility at PSL

• Setting up heater, pump, control and sensor facility at PSL

• Set up communication network for above• Will use above for drill and repair training for drill

crew• May move to MDS style unit in future

Mar 19-23, 2005Berkeley

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Organization

Build teams based on focus areas (first person leads team)

1. Drives, UNICOs, Motors: MT, TS, PR, TM (consultant)2. E-stop, Network, Comm: TM, HM, PR, MT3. Heaters, Condensate, Fuel, Switches & Sensors: JC, RB, CB, DD4. Pumps, Sensors: BP, JC, RB5. Software, Operations (simulator): HM, CR, JA, TS, AE, VG,AS, new hire,drillers6. Speed Limit, Thermal, Dynamics: LG, JC, RM, TS,NG (consultant)7. Drill Head, Weights, Nozzle, Sensors: JA, BP, LG, MT,DP8. Procedures (SOP), Set Up: AE, RB, T Ham9. Reels: BP, LG, JC,DP,CB,PR10. Cables: PR,TM,JA11. Hose, TOS, Crescent: JC, BP, AR,TB12. Firn Drill: LG, DP,JC,AK13. Training/testing: FF,RB,THam,JC,AE,drillers14. Documents, Drawings: AR,TM,PR

Mar 19-23, 2005Berkeley

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Schedule

• We have started work already• Must ship all items so they get to SP when it

opens• Organize shipments so parts are easily found• We have about 6 months--must be very careful on

what we do

Mar 19-23, 2005Berkeley

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Stay focused on goals

• Priorities:– Thing we must do 1

– Things we should do 2

– Things that would be nice 3

• Eliminate dependencies among tasks• Keep an eye on how long it takes to do here• Keep another eye on how long it takes to

implement at the pole• Keep both eyes on drilling 12 holes

Mar 19-23, 2005Berkeley

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Drill Logging and Analysis

Mar 19-23, 2005Berkeley

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Implementation--Introduction

• Layout-surveying• Pilot holes—4” coring drill• Firn Drill---down to 60 meters—water pools• HW Drilling—straightness, depth, logging• String Deployment—depth, location, logging• Freeze-In—4-5 day monitoring-Counting House• Data Management—drillers, deployers• Off-line—real-time analysis, Pole, Madison

Mar 19-23, 2005Berkeley

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Drilling Data

• Drill Operations: depth, calipers, theta, vital parameters

• Data updates at rate of 4 Hz (250 ms).• Data-Bridge—between drill net and SP-net.

With updates every 5 minutes—1200 updates• Drill Monitoring: Off-line, Real-Time• Pole Monitoring---full analysis and logging• Madison Monitoring—full analysis and logging

as the satellite permits.

Mar 19-23, 2005Berkeley

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Off-line Real-Time AnalysisAt South Pole and Madison

• Tension (cable and drill-head)• Depth (from winch payout and pressure)• Hole Diameter—Calipers• Drill-Angle—Straightness, Theta• Logging X-Y or “birds-eye” plots

Mar 19-23, 2005Berkeley

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Mar 19-23, 2005Berkeley

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Hole # 1 ( 21)

• First attempt at hole drilling

Mar 19-23, 2005Berkeley

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HOLE 1

Mar 19-23, 2005Berkeley

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HOLE 1

Mar 19-23, 2005Berkeley

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HOLE 1

Mar 19-23, 2005Berkeley

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HOLE 1

Mar 19-23, 2005Berkeley

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Hole #1 Summary

• 22 hrs—large tilt angle, buried drill?• 27-33 hrs—buoyant drill, buried drill, lost

nozzle?• 40 hrs—buried drill, lost part of weights• 43 hrs—lost additional part of weight-stack• 45 hours buried drill• 33-50 hours, drill difficult to steer.• Difficulty controlling hole diameter

Mar 19-23, 2005Berkeley

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Hole #2 (21-A)

• Move tower by about 8 meters• Make 2nd attempt at hole drilling

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HOLE 2

Mar 19-23, 2005Berkeley

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HOLE 2

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HOLE 2

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HOLE 2

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Hole #2 Summary

• More even drilling rate• Better control of drill straightness• Straightness—diameter correlation?

Mar 19-23, 2005Berkeley

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Drill Oscillations

• Lee Greenler’s talk

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HOLE 2

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HOLE 2

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HOLE 2

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Drill Oscillations

• Demonstrates need for fast-response instruments like drill load-cells, and cable/winch load-cells.

• Possible need for additional instruments like accelerometers to actually determine drillhead’s instantaneous velocity and position.

Mar 19-23, 2005Berkeley

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Hole #2 Logging –X-Y Plot

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HOLE 2

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HOLE 2

Mar 19-23, 2005Berkeley

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Deployment

• Kurt Woschnagg’s talk

Mar 19-23, 2005Berkeley

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