Page 3 - Offshore Well Construction

iv OFFSHORE WELL CONSTRUCTION

Cement Testing .....................................................................................................................................................5.5
Spacers ...................................................................................................................................................................5.7
Petroleum Extension-The University of Texas at Austin
Equipment .............................................................................................................................................................5.7
Cementing Practices ............................................................................................................................................5.9
Evaluation of Cement Job .................................................................................................................................5.14
Cementing Calculations ....................................................................................................................................5.15

Chapter 6 Drill Bits ............................................................................................................................................................................................................................................6.1
Bit Selection ...........................................................................................................................................................6.1
Roller Cone Bits ....................................................................................................................................................6.2
Fixed-Cutter Bits ...................................................................................................................................................6.4
Bit Handling and Makeup Procedures ...........................................................................................................6.14
Bit Running Procedures ....................................................................................................................................6.14
Bit Related Drilling Dynamics..........................................................................................................................6.16
Drilling Problem Identification ........................................................................................................................6.19
Dull Bit Grading .................................................................................................................................................6.21
Bit Run Economics .............................................................................................................................................6.25

Chapter 7 Hydraulics and Hole Cleaning ............................................................................................................................................................................................7.1
Introduction ..........................................................................................................................................................7.1
Considerations for Hydraulics Planning ..........................................................................................................7.1
Factors that Affect Hydraulics ...........................................................................................................................7.1
General Rules of Thumb .....................................................................................................................................7.2
Hydraulic Calculations .......................................................................................................................................7.3
Annular Hydraulics and Hole Cleaning.........................................................................................................7.11
Hole Cleaning Guidelines .................................................................................................................................7.16

Appendix 1—TFA Chart .................................................................................................................. 7.20
Appendix 2—Rheological Models .................................................................................................. 7.21

Chapter 8 Drill String Design ......................................................................................................................................................................................................................8.1
Drill String Components .....................................................................................................................................8.1
Drill String Considerations .................................................................................................................................8.1
Drill String Design ...............................................................................................................................................8.5
Design for Vertical-to-Moderate Angle Wellbores ..........................................................................................8.7
Design for Extended-Reach Wellbores ............................................................................................................8.18
Fatigue .................................................................................................................................................................8.20
Appendix 1 ......................................................................................................................................... 8.23

Appendix 2—Rotary Shoulder Connection Dimensions —API Connections .......................... 8.25

Chapter 9 Surveying and Directional Drilling ..................................................................................................................................................................................9.1
Surveying ..............................................................................................................................................................9.1
Surveying Tools ....................................................................................................................................................9.7
Methods of Survey Calculations ......................................................................................................................9.14
Directional Drilling ............................................................................................................................................9.19
Typical Bottomhole Assemblies .......................................................................................................................9.29

Chapter 10 Formation Evaluation ............................................................................................................................................................................................................. 10.1
Introduction ........................................................................................................................................................10.1
Reservoir Definition ...........................................................................................................................................10.2