METHOD FOR USING DRILLING FLUID IN DRILLING OPERATIONS, DRILLING FLUID AND ITS USE

Abstract: the present disclosure refers to a method for using drilling fluid in drilling operations in the presence of saline lithology, with the aim of optimizing drilling without damaging the caliper and thus improving well construction conditions. additionally, the present disclosure relates to an undersaturated low salinity drilling fluid, thus showing a potential to reduce the risks of column clogging due to salt precipitation and casing clogging, as it improves cleaning conditions inside the well, as cuttings and possible salt-generated beds are solubilized. the aforementioned drilling fluid will be applied in the construction of wells with potential gains in the disciplines of drilling fluids, directional tools and casing and cementing.

Inventor(s): Fabio FABRI, Jose Robelio LIMA DE ARAUJO, Leila Cibele Da Costa MUNHOZ, Leonardo SILVA DE ALMEIDA

CPC Classification: E21B21/003 (Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor (freeing objects stuck in boreholes by flushing ))

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