BS EN ISO 22476-15:2016
$167.15
Geotechnical investigation and testing. Field testing – Measuring while drilling
| Published By | Publication Date | Number of Pages |
| BSI | 2016 | 34 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | European foreword Endorsement notice |
| 6 | Foreword |
| 7 | Introduction |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions |
| 10 | 4 Symbols |
| 11 | 5 Equipment 5.1 General |
| 12 | 5.2 Drilling equipment 5.3 Measuring system 5.3.1 General |
| 13 | 5.3.2 Sensors for hydraulic pressures 5.3.3 Measuring system for penetration length 5.3.4 Measuring system for flushing medium flow 5.3.5 Measuring system for rotational speed |
| 14 | 5.3.6 Measuring of hammering energy 5.3.7 Reflected vibrations 5.3.8 Time 5.4 Selection of measured parameters |
| 15 | 5.5 Factors influencing MWD results 5.5.1 Tool influence 5.5.2 Drilling rig influence 5.5.3 Operator influence 6 Test procedures 6.1 General |
| 16 | 6.2 Position and level of drill rig 6.3 Preparation of the measurement 6.4 Drilling procedure |
| 17 | 6.5 Frequency of logging parameters 6.6 Registration of penetration length 6.7 Test completion |
| 18 | 6.8 Equipment checks and calibrations 7 Test results 7.1 General 7.2 Calculated parameters 7.2.1 General 7.2.2 Penetration rate 7.2.3 Down-thrust pressure |
| 19 | 7.2.4 Net down-thrust pressure 7.2.5 Flushing medium pressure 7.2.6 Drill head rotational torque |
| 20 | 8 Reporting 8.1 General 8.2 Reporting of test results |
| 22 | Annex A (informative) Application of drilling parameters |
| 28 | Annex B (informative) Graphical presentation of drilling parameters |
| 30 | Bibliography |
