Reflex EZ-TRAC - 3 ABOUT SURVEYING; 3.1 All boreholes deviate; 3.1.1 Calculation of underground positions; 3.2 Direction of downhole object

MANUAL – REFLEX EZ-TRAC™ | 5
10.5 Zeroing............................................................................................................................. 64
10.5.1 Register new zeroing................................................................................................... 64
10.5.1.1 Position for zeroing – Gravity Tool Face .............................................................................. 64
10.5.1.2 Position for zeroing – Magnetic Tool Face ........................................................................... 65
10.5.1.3 Register zero position ..........................................................................................................66
10.5.2 Use stored zeroing ...................................................................................................... 66
10.6 Downhole survey ............................................................................................................. 67
10.6.1 Initialise instrument...................................................................................................... 68
10.6.2 Assemble survey system – Gravity Tool Face............................................................ 68
10.6.3 Assemble survey system – Magnetic Tool Face......................................................... 68
10.6.4 Load tell tale ................................................................................................................ 69
10.6.5 Run into hole ............................................................................................................... 70
10.6.6 Execute downhole survey ........................................................................................... 70
10.6.7 Verify lead tell tale ....................................................................................................... 70
10.7 Download data................................................................................................................. 71
10.8 Survey results..................................................................................................................71
10.8.1 Enter desired Toolface ................................................................................................ 72
10.8.2 End survey and Save results....................................................................................... 72
10.8.2.1 Stored Zeroing ..................................................................................................................... 73
10.8.3 Cancel ......................................................................................................................... 73
11 SURVEYING METHODS.............................................................................................................. 74
11.1 Running gear ................................................................................................................... 74
11.1.1 Important assembling tips ........................................................................................... 74
11.1.2 Maintenance................................................................................................................ 74
11.1.3 Extension rods............................................................................................................. 74
11.1.4 Landing collars ............................................................................................................ 75
11.2 Surveying methods.......................................................................................................... 76
11.2.1 Through drill string - wireline ....................................................................................... 76
11.2.2 Through drill string - tripping out.................................................................................. 77
11.2.2.1 Gravity.................................................................................................................................. 77
11.2.2.2 Wireline ................................................................................................................................ 78
11.2.2.3 Pump into hole ..................................................................................................................... 78
11.2.2.4 Tripping out .......................................................................................................................... 78
11.2.3 In front of drill string..................................................................................................... 79
11.2.4 Pumping ...................................................................................................................... 80
11.2.5 Open hole surveying.................................................................................................... 80
11.2.5.1 Downwards direction............................................................................................................ 81
11.2.5.2 Upwards direction ................................................................................................................ 81
11.2.6 Reverse Circulation ..................................................................................................... 82
11.2.6.1 Azimuth and inclination ........................................................................................................ 82
11.2.6.2 Inclination............................................................................................................................. 83
12 TRANSFER SURVEY FILES ....................................................................................................... 85
12.1 Survey files ...................................................................................................................... 85
12.1.1 Single Shot .................................................................................................................. 85
12.1.2 Multi Shot..................................................................................................................... 85
12.1.3 Orientation................................................................................................................... 85
12.2 Transfer files to PC .......................................................................................................... 86
12.3 Free memory space......................................................................................................... 88
12.4 REFLEX™ SProcess....................................................................................................... 88
12.4.1 Limitations ................................................................................................................... 88
13 MAINTENANCE ........................................................................................................................... 89
13.1 Introduction ...................................................................................................................... 89
13.2 Regular maintenance....................................................................................................... 89
13.2.1 Before every survey..................................................................................................... 89
13.2.2 After every survey........................................................................................................ 90
13.3 Battery replacement......................................................................................................... 90
13.4 Service............................................................................................................................. 90
13.4.1 Calibration ................................................................................................................... 90
13.4.2 Service return .............................................................................................................. 90