CONTENTS Drilling Holes 4 Deeper and Deeper 6 Setting Up 8 Power Up 10 Standing Tall 12 Drilling 14 Cutting Through Rock 16 Pumps and Pits 18 Gigantic 20 Oil Platforms of the World 21 Glossary 22 Index 23
Drilling Holes Drilling rigs drill holes in the ground Some drilling rigs are huge The largest drilling rigs can reach many miles underground They need hundreds of workers Why do drilling rigs drill Let’s find out 4
