| II |
EXPLOITATION |
109 |
| | | |
| 6 |
Well Design - General Considerations |
111 |
| 6.1 |
Introduction |
111 |
| 6.2 |
Design Objectives |
111 |
| 6.3 |
Preliminary Evaluation |
111 |
| 6.4 |
End Use |
111 |
| 6.5 |
Operational Requirements & Their Relationship to the System |
111 |
| 6.6 |
Site Selection |
111 |
| 6.7 |
Well Components |
113 |
| 6.8 |
Completion |
113 |
| 6.9 |
Drilling Method |
113 |
| 6.10 |
Criteria for Selection of Well Designs |
113 |
| 6.11 |
Naturally Developed Wells |
121 |
| 6.12 |
Well Depth |
125 |
| 6.13 |
Depth of Conductor Casing |
125 |
| 6.14 |
Depth of Pump Housing Casing |
125 |
| 6.15 |
Criteria for Casing Diameter |
125 |
| 6.16 |
Criteria for Screen Diameter |
126 |
| 6.17 |
Criteria for Borehole Diameter |
126 |
| 6.18 |
Plumbness and Alignment |
126 |
| 6.19 |
Procedure for Checking Well Plumbness and Alignment |
127 |
| 6.20 |
Calculation of Well Deviation |
127 |
| 6.21 |
Plotting Well Deviation |
127 |
| 6.22 |
Well Pad |
128 |
| 6.23 |
Gravel Feed Line |
128 |
| 6.24 |
Sounding Pipe |
130 |
| 6.25 |
Disinfection |
130 |
| | | |
| 7 |
Drilling Systems |
131 |
| 7.1 |
Introduction |
131 |
| 7.2 |
Rotary Drilling |
131 |
| 7.3 |
Reverse Circulation Rotary |
141 |
| 7.4 |
Cable Tool Method |
144 |
| 7.5 |
Variation of Basic Drilling Systems & Special Drilling Tools |
150 |
| References |
|
153 |
| Reading List |
|
154 |
| | | |
| 8 |
Drilling Fluid |
155 |
| 8.1 |
Introduction |
155 |
| 8.2 |
Functions of Drilling Fluids |
155 |
| 8.3 |
Classification of Drilling Fluids |
158 |
| 8.4 |
Rheological and Wall-Building Properties of Drilling Fluid |
159 |
| 8.5 |
General Constituents of Freshwater-Base Drilling Fluids |
160 |
| 8.6 |
Drilling-Fluid Additives |
163 |
| 8.7 |
Organic Polymers |
164 |
| 8.8 |
Selection of Drilling Fluid |
166 |
| 8.9 |
Drilling-Fluid Problems |
167 |
| 8.10 |
Procedures for Evaluating Drilling-Fluid Properties |
170 |
| 8.11 |
Field Tests |
173 |
| 8.12 |
Drilling Systems Using Air |
173 |
| References |
|
177 |
