NORTHERN TERRITORY GEOLOGICAL SURVEY DRILLING MANUAL JN DUNSTER Record 2004-007 Northern Territory Government Department of Business, Industry & Resource Development NORTHERN TERRITORY DEPARTMENT OF BUSINESS, INDUSTRY AND RESOURCE DEVELOPMENT Geological Survey Record 2004-007 Drilling manual JN Dunster Northern Territory Geological Survey Northern Territory Government Darwin, 2004 Department of Business, Industry & Resource Development i DEPARTMENT OF BUSINESS, INDUSTRY AND RESOURCE DEVELOPMENT MINISTER: Hon Kon Vatskalis, MLA CHIEF EXECUTIVE OFFICER: Mike Burgess NORTHERN TERRITORY GEOLOGICAL SURVEY DIRECTOR: Richard Brescianini BIBLIOGRAPHIC REFERENCE: Dunster JN, 2004. Drilling manual. Northern Territory Geological Survey, Record 2004-007. (Record / Northern Territory Geological Survey ISSN 1443-1149) Bibliography ISBN 0 7245 7085 3 Keywords: Drilling, core drilling, diamond drilling, drilling problems, RC drilling, slim hole drilling, stratigraphic drilling, wire line drilling, drilling equipment, drilling fluids EDITORS: PD Kruse and TJ Munson For further information contact: Geoscience Information Northern Territory Geological Survey GPO Box 3000 Darwin NT 0801 Phone: +61 8 8999 6443 Website: http://www.minerals.nt.gov.au/ntgs © Northern Territory Government 2004 Disclaimer While all care has been taken to ensure that information contained in Northern Territory Geological Survey, Record 2004-007 is true and correct at the time of publication, changes in circumstances after the time of publication may impact on the accuracy of its information. The Northern Territory of Australia gives no warranty or assurance, and makes no representation as to the accuracy of any information or advice contained in Northern Territory Geological Survey, Record 2004-007, or that it is suitable for your intended use. You should not rely upon information in this publication for the purpose of making any serious business or investment decisions without obtaining independent and/or professional advice in relation to your particular situation. The Northern Territory of Australia disclaims any liability or responsibility or duty of care towards any person for loss or damage caused by any use of, or reliance on the information contained in this publication. ii CONTENTS Introduction ............................................................................................................................................................................... 1 Objective and content of this document ..................................................................................................................................1 History of NTGS drilling ........................................................................................................................................................1 Types of drilling ......................................................................................................................................................................1 Types of drill rigs ....................................................................................................................................................................2 Administration . .........................................................................................................................................................................4 Planning and managing the program ...........................................................................................................................................4 Stage 1 Planning ......................................................................................................................................................................4 Stage 2 Contracts management ...............................................................................................................................................4 Stage 3 Site supervision ..........................................................................................................................................................4 Stage 4 Closeout ......................................................................................................................................................................4 Authorisation for expenditure .....................................................................................................................................................4 Risk analysis ................................................................................................................................................................................5 Planning and access problems .................................................................................................................................................5 Technical problems while drilling ...........................................................................................................................................5 Incorrect stratigraphic prognosis.............................................................................................................................................5 Onsite duties ................................................................................................................................................................................5 Terminating the hole ................................................................................................................................................................6 Data handling and report writing ................................................................................................................................................6 NTGS drillhole naming convention ........................................................................................................................................6 NTGS Technical Note, Drillhole Completion Report and data management.........................................................................6 Safety and emergency procedures ...............................................................................................................................................6 Site access by trained personnel only......................................................................................................................................6 Work hours ..............................................................................................................................................................................6 Site layout and housekeeping ..................................................................................................................................................6 Fire safety ................................................................................................................................................................................7 Fuel safety ...............................................................................................................................................................................7 Hazardous substances..............................................................................................................................................................7 Safety audit and safety meetings .............................................................................................................................................7 Personal protective equipment (PPE) .....................................................................................................................................7 Personal health and hygiene ....................................................................................................................................................7 Use of radioactive sources ......................................................................................................................................................8 Pressure vessels and associated equipment.............................................................................................................................8 Guards on rig ...........................................................................................................................................................................8 Gas hazards..............................................................................................................................................................................8 Duty of care .................................................................................................................................................................................9 Reporting systems ...................................................................................................................................................................9 Hazard Report .........................................................................................................................................................................9 Incident Report ........................................................................................................................................................................9 Statutory accident reporting ....................................................................................................................................................9 Vehicle accidents 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