Lessons in rotary drilling. Unit I Lesson 8 Circulating systems

Lessons in rotary drilling. Unit I Lesson 8 Circulating systems
Texas : Petroleum Extension Service (PETEX),. 1981.
English
Text
vii, 44 hlm., ilus., 28 cm
Perpustakaan PEM Akamigas DIGITAL LIBRARY PEM AKAMIGAS (Call Number: 622.24 Pet lI-8)