ConocoPhillips
NEUTRON ABSORBER-DOPED DRILLING MUD AND CHARACTERIZATION OF NATURAL FRACTURES

Abstract:

Gadolinium- or boron-doped drilling mud is used during drilling so that it will penetrate all natural cracks in the formation that intersect with the wellbore. Once cased, cemented and washed, the doped mud will only be in the fractures. Pulsed neutron logging is performed, and natural factures thereby characterized.