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LEAP REPORT

Detailed report on the agreement between DOSECC and Far Eastern Geological Institute covering drilling system, safety issues, equipment acquisitions, and ice stability management. Includes activities, agreements, safety considerations, drilling schedules, and ice testing.

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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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