Page 4 - Drilling a Straight Hole
P. 4
Calculation of Drill Collar Weight 71
Square Drill Collars 74
Spiral Drill Collars 77
Petroleum Extension-The University of Texas at Austin
Stabilizers 79
Rotating-Blade Stabilizer 80
Nonrotating Sleeve Stabilizer 83
Rolling-Cutter Reamer 83
Vibration Dampeners 86
Measurement-while-Drilling (MWD) Tools 88
To Summarize 90
Deviation-Recording Instruments 91
Types of Instruments 95
To Summarize 99
Appendix A 101
Appendix B 105
Glossary 109
Review Questions 133
Index 137
Answers 143
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