Radiant energy – Geological testing or irradiation – With drill or drilling
Patent
1995-03-13
1996-05-14
Fields, Carolyn E.
Radiant energy
Geological testing or irradiation
With drill or drilling
2502691, G01V 904
Patent
active
055170242
ABSTRACT:
A logging-while-drilling apparatus includes a source of exciting radiation, means for illuminating the borehole wall with the radiation and means for detecting radiation returning from the borehole resulting from illumination with the exciting radiation. A bottom hole assembly (BHA) incorporating such apparatus can comprise a drill bit, one or more stabilizers and one or more drill collars and the source and illuminating and detecting means can be located in one of these or distributed therebetween according to requirements. A window can be provided to allow illumination of the borehole and detection of returning radiation.
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Mullins Oliver C.
Wu Xu
Fields Carolyn E.
Hyden Martin D.
Pojunas Leonard W.
Schlumberger Technology Corporation
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