1 / 12

Deployment Monitoring & Drill Logging (offline) at Pole

Deployment Monitoring & Drill Logging (offline) at Pole. Kurt Woschnagg IceCube collaboration meeting, Berkeley, March 2005. Some more about. Drill logging in 04/05 season. The plan Monitor drilling, hole quality Produce hole profile for string geometry What was done

bond
Download Presentation

Deployment Monitoring & Drill Logging (offline) at Pole

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Deployment Monitoring&Drill Logging (offline) at Pole Kurt Woschnagg IceCube collaboration meeting, Berkeley, March 2005

  2. Some more about Drill logging in 04/05 season • The plan • Monitor drilling, hole quality • Produce hole profile for string geometry • What was done • Drill data transferred to public disk in 5 min chunks • Real-time logging analysis in North… • Bob Morse, Varun Gopalakrishna at UW (Bob’s talk) • Jack Ambuel, Bruce Koci, others • Example: hole profile (x, y) • …and at Pole • Cindy Mackenzie: data transfer • KW: logging, analysis • Communication: web, email, phone • Example 1: web based drill depth/speed info (Steffen Richter) • Example 2: caliper data for final go • Logging and analysis scripts run in both places

  3. Hole profile (x, y) for geometry

  4. From the archives: Actual plot used in final go/no-go decision Drilling (down) hole diameter [cm] depth [m] hole diameter [cm] Ream (up) depth [m]

  5. Suggestions for Next Season • Faster codes (perl instead of java) • Integrate into drill monitoring • …also keep independent • Crucial for cross-checks • Define standard plots • Define procedure & plots for hole hand-over • Bob M to Pole!

  6. Deployment Monitoring 2435.8 m Paro1 (pressure, temp) 1 Readout (Data Deployment Box): Jack Ambuel, PSL Monitoring system (chucknet): Chuck Rentmeesters, UW Cables/breakouts/connectors: Jim Baccus, UW Harold Mattison, PSL Sensors: Michael Solarz, UCB Pole support: Mark Thoma Steffen Richter Data transfer: Cindy Mackenzie, UW Thermistor (temp) Keller (pressure) 29 39 Thermistors (temp) not read out during deployment 47 55 Paro2 (pressure, temp) 59 60 dust logger

  7. Project Phase Transition Management- dense Physics dominated

  8. Water Compressibility Correction The compressibility of pure water is tiny, κ0 = 3.4456e-6 (PSI)-1 but not negligible in a 2500 m hole! Slightly higher for aerated water. Use depth difference between Paros to fit effective compressibility: κ = 3.78e-6 (PSI)-1 Then (after integration): depth[m] = C/(Dκ)·(exp(- κP0)-exp(- κP)) P,P0 in PSI D = 0.99987 g/cm3; C = 0.7030696 Not implemented in monitoring system, so final depth is 2435.8 m (not 2450.8)

  9. Deployment Monitoring Monitored during deployment: Depth (bottom DOM) from pressure sensors - Paro1 - Paro2 - Keller Pressure differences - Paro2-Paro1 - Paro2-Keller - Paro1-Keller Payout Drop speed Well depth (by hand, with laser ranger) Monitored during freeze-in: Pressures (x3) Temperatures (x3) 1 29 39 47 55 59 60

  10. A typical Paro pressure profile in AMANDA Water frozen at Paro - Oil column volume fixed Density of oil column changes with temperature Freeze-in begins Pressure build-up when hole closed off at OM – pressure release when water breaks through drop Total pressure release corresponds to change in density between water and ice deployment

  11. Freeze-in Monitoring Paro1 (pressure, temp) 1 Thermistor (temp) Keller (pressure) 29 39 47 55 Paro2 (pressure, temp) 59 60

More Related