Inventor
GROLET PIERRE
4 patents
Patents
4 patentsUS4648478AMar 10, 1987
Device for generating sound pulses inside a well, by percussion
INST FRANCAIS DU PETROLE29 citations90
US3941146AMar 2, 1976
Apparatus for storing a flexible elongated member, such as a flexible drill column
INST FRANCAIS DU PETROLE25 citations79
US4564083AJan 14, 1986
Device for generating acoustic shear waves in the earth
INST FRANCAIS DU PETROLE15 citations72
US4294318AOct 13, 1981
Device for measuring the stresses applied in use to the downhole assembly of a drill pipe
INST FRANCAIS DU PETROLE14 citations71