Inventor
STULEMEIJER IVO P J M
NL3 patents
Patents
3 patentsUS4890682AJan 2, 1990
Apparatus for vibrating a pipe string in a borehole
SHELL OIL CO139 citations95
US5117926AJun 2, 1992
Method and system for controlling vibrations in borehole equipment
SHELL OIL CO59 citations89
US5520247AMay 28, 1996
Method of producing a fluid from an earth formation
SHELL OIL CO25 citations87