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LEAP REPORT

LEAP REPORT. Dennis L. Nielson Doug Schnurrenberger DOSECC Volker Neth EBA Engineering Consultants, Ltd. Cologne November 4, 2007. DOSECC ACTIVITES. CONTRACTS DRILLING SYSTEM DESIGN RIG & EQUIPMENT ACQUISITION and TESTING SAFETY ISSUES DEPS REVIEW ICE STABILITY/SAFETY MANAGEMENT.

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LEAP REPORT

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  1. LEAP REPORT Dennis L. Nielson Doug Schnurrenberger DOSECC Volker Neth EBA Engineering Consultants, Ltd. Cologne November 4, 2007

  2. DOSECC ACTIVITES • CONTRACTS • DRILLING SYSTEM DESIGN • RIG & EQUIPMENT ACQUISITION and TESTING • SAFETY ISSUES • DEPS REVIEW • ICE STABILITY/SAFETY MANAGEMENT

  3. Agreement between DOSECC and Far Eastern Geological InstituteFar Eastern Branch/RAS • Complements DOSECC – NEISRI agreement • FEGI to Take Possession of Drilling System • Customs Responsibilities • Provide Russian Drillers for Lake Drilling • Equipment Purchases

  4. FEB/RAS AGREEEMENT SIGNIFICANCE • Clarification of Customs Issues • Pay the Duty • Finalize Shipping Plans • Import Through Vladivostok to Pevek • Containerize Shipment • Redesign Drilling Platform

  5. SAFETY CONSIDERATIONS • Two Drilling Pad Stability Studies by EBA • Review by CRREL • EBA Currently Working on Ice Management/Safety Plan • Ice Road Construction • Air Strip Construction • Monitoring (GPR, Monitoring Holes, Strain Measurements) • Safety Plan & Ice Manager

  6. LAKE DRILLING SCHEDULE • Drilling Days Related to Time on Ice • Transit Timing Uncertain • Start Drilling as Early as Possible • Ice Thick Enough Late February • Ice management: Clear Snow and Flood • Drilling Complete by 1 May

  7. Modeled Ice Thickness NCEP Air Temperature Measured Lake Ice Coverage Modeled Snow Thickness From Nolan et al., 2003 (Figure 8)

  8. ICE DRILL PAD • Drilling Equipment Weight: 72,700 Kg • Min. Requirement: 1.3 m Good Quality Ice • Clear Snow • Artificial Flooding • Ice Pad Radius: 50 m • Load Duration: 20 days • Overpull of 18,200 Kg for 2 Hours

  9. LAKE DRILLING • Drilling from ice pad – Winter 2009 • Rig Purchased and Platform Construction Initiated • Shipping in Summer 2008 through Vladivostok (Containerized) • Drilling System Becomes Property of Far East Geological Institute, FEB RAS

  10. DRILLING PLATFORM • Purpose: Thermal Isolation and Weight Distribution of Drilling System • Separate Skids for Transport • Final Costing and Beginning Construction • Heated Floor • Wind Walls and Roof

  11. ICE TEST • CANDIDATES • Lake Champlain, VT (Funding from USGS) • Lake Superior & Vicinity, MN • Lake Harding, AK • ISSUES • Collect Scientific Samples if Possible • Dress Rehearsal of All Aspects • Cost • Schedule and Details

  12. PERMAFROST DRILLING • Technical Aspects: AWI • Options • Winter 08 – Chuan Mining Co. (CGE) • Spring 09 – DOSECC rig • Draft Contract between DOSECC and CGE • Review by Baker Botts, Moscow Office • Negotiations in Late November • CGE Increases Cost ($750K ?)

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