Equinor Sees Record ROP After First Field Run of Bit with 3D Cutting Elements | Schlumberger
Tech Report
Location
North Sea, Europe, Offshore
Details

Operator
Equinor

Bit diameter
16 in

Hole type
Curve, 3.10°/30 m

Interval depth
1,183 m

Background

Equinor wanted to improve low ROP while drilling the 16-in curve sections of prior wells in a North Sea project. The section would drill through a milled window with potential for washout and wellbore instability due to unconsolidated sands and swelling green clay. These compromised conventional drill bits that use flat PDC cutters, which hinder ROP due to severe bit balling as long ribbons of cuttings material pack off the bit cutting structure.

Products Used

Equinor Sees Record ROP After First Field Run of Bit with 3D Cutting Elements

HyperBlade bit catapults ROP 167% in curve section, achieving average ROP of 101 m/h with peak ROP of 400 m/h

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The HyperBlade bit enabled Equinor to drill the section according to AFE in 11.7 h with an average ROP of 101 m/h, 167% faster than curve sections in prior wells and a staggering maximum ROP of 400 m/h.
Products Used

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