Page 7 - Drilling Technology in Nontechnical Language

Contents ix

7 Drilling Fluids 155

Overview 155
Functions of the Drilling Fluid 155
Basic Mud Classifications 156

Designing the Drilling Fluid 164
Summary 172

8 Directional and Horizontal Drilling 173

Overview 173
Why Drill Directional Wells? 173
Directional Well Planning 175
Deviating the Wellbore 178
Navigating to the Target 188
Directional Drilling Problems 194
Summary 195

9 Casing and Cementing 197

Overview 197
Casing Types 198
Designing the Casing String 202
Role of the Cement outside Casing 205
Mud Removal 206
Cement 208
Cement Design 209
Running and Cementing Casing 217
Cementing Surface Casings 220
Cement Evaluation behind Casing 223
Other Cement Jobs 223
Summary 225

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