Inventor

KOTSONIS SPYRO J

US2 patents

Patents

2 patents

US6092610AJul 25, 2000

Actively controlled rotary steerable system and method for drilling wells

SCHLUMBERGER TECHNOLOGY CORP620 citations95

US7133325B2Nov 7, 2006

Apparatus and method for generating electrical power in a borehole

SCHLUMBERGER TECHNOLOGY CORP62 citations94