Odei-Lartey, Emmanuel: Real-time sensor data acquisition for borehole trajectory tracking and telemetry over an underground wireless ad hoc networkEchtzeit-Sensordatenerfassung für die Verfolgung und Telemetrie der Bohrlochbahn über ein unterirdisches drahtloses Ad-hoc-Netzwerk. 2018
Inhalt
- ACKNOWLEDGEMENT
- ABSTRACT
- KURZFASSUNG
- CONTENTS
- TABLE OF FIGURES
- LIST OF TABLES
- NOMENCLATURES
- 1. Introduction
- 1.1 Motivation
- 1.2 Previous Research
- 1.3 Thesis Assumptions
- 1.4 Thesis Objectives and Contributions
- 1.5 Thesis Structure
- 2. Wellbore Navigation
- 3. Data Fusion Approach for Wellbore Trajectory Tracking
- 3.1 Approach using Data Fusion
- 3.2 Data Fusion Approach used in the I-Tube Drill-head Position Tracking
- 3.3 Data Fusion Approach using the Kalman filter
- 3.4 The Basis of the Development of the System Model Description for the Wellbore Trajectory Tracking Approach
- 3.5 Mathematical Model Description
- 3.6 Innovative Approach to Wellbore Trajectory Tracking Improvement
- 3.7 Conclusion
- 4. Design, Analysis and Verification of the Proposed Model
- 4.1 Field Data Analysis using the ISCWSA Error Model for IMU Sensors with Differing Performance Specifications
- 4.2 Experiment to Investigate the Improvement in Accuracy using the Described Processing Scheme
- 4.3 Probabilistc Approach using Weighting Functions
- 5. Wireless Ad hoc Network Underground for Borehole Telemetry
- 5.1 Underground Wireless Ad hoc Network Structure
- 5.2 Wireless Telemetry within Standard Drill-Pipes
- 6. Conclusion, Contribution of Thesis and Outlook
- Appendix I - Mathematical Derivation of the Error Propagation Model
- Appendix II - Development of the Attitude Dynamic Equation
- Appendix III - Sensor Calibration
- Appendix IV - Wellpath Calculation Methods
- Appendix V - Allan Variance Method for Stochastic Parameter Determination
- BIBLIOGRAPHY