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UPDATE ON THE DEVELOPMENT OF A BOREHOLE GRAVIMETER FOR MINING APPLICATIONS SEIGEL, CHOUTEAU, GIROUX & NIND

UPDATE ON THE DEVELOPMENT OF A BOREHOLE GRAVIMETER FOR MINING APPLICATIONS SEIGEL, CHOUTEAU, GIROUX & NIND. Applications of BH Gravity in Mining. Remote Detection Massive Sulphide Deposits Other Types of Metallic Deposits Non-Metallic Deposits

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UPDATE ON THE DEVELOPMENT OF A BOREHOLE GRAVIMETER FOR MINING APPLICATIONS SEIGEL, CHOUTEAU, GIROUX & NIND

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  1. UPDATE ON THE DEVELOPMENT OF A BOREHOLE GRAVIMETER FOR MINING APPLICATIONS SEIGEL, CHOUTEAU, GIROUX & NIND

  2. Applications of BH Gravity in Mining Remote Detection • Massive Sulphide Deposits • Other Types of Metallic Deposits • Non-Metallic Deposits • Verification of Surface and Airborne Gravity Anomalies Bulk Density Determinations and Applications to Mining • Deposit evaluation • Improved grade control • Relative local rock strength • Monitoring integrity of dams and tailings ponds

  3. REMOTE DETECTIONKelly Lake: Near Miss

  4. BULK DENSITYPNNL Waste Treatment Plant, Hanford, WA ρ = g’/(4πG) = 0.01193 g’

  5. “Gravilog”BHG for Mining

  6. GRAVILOG Development • Three year development & testing • Funding: • Industry (CAMIRO) • CVRD Inco, BHPB, Areva & Schlumberger • Canadian Government (IRAP) • Scintrex • Work Plan • Product development at Scintrex • Modelling software at École Polytechnique • Start: Oct 2005 • Field Tests in Boreholes: mid 2008

  7. GRAVILOG Design Layout

  8. GRAVILOG Sensor Housing

  9. GRAVILOG User Interface

  10. GRAVILOG Modeling Software

  11. GRAVILOGSystem Test Program BENCH TESTS • Individual components tested prior to assembly • Complete prototype system SHAKE – DOWN TESTS • Borehole near Lindsay (Sir Sanford Fleming) • Proper functioning of all Gravilog modules & sensors • S.D of one minute measurements • Repeatability • Debugging • Efficient logging procedures OPERATIONAL TESTS IN SPONSORS’ BOREHOLES

  12. GRAVILOGBHG for Mining Applications • Development nearing completion • Modeling software complete • Industry sponsors’ boreholes: mid 2008 • Production logging system: January 2009

  13. CREDITS • CAMIRO – Tom Lane • CVRD Inco – Alan King • BHP Billiton – Peter Diorio • Areva – Grant Nimeck & Rod Koch • Schlumberger – Harold Pfutzner • IRAP – Ramesh Gupta • Sir Sanford Fleming College

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