Drill through alternating lithologies at high ROP
Progress Energy sought to develop natural gas reserves in the Montney shale play in the Julienne field of British Columbia, Canada. To reach the reservoir, the operator had to drill through a formation with alternating lithologies of hard and abrasive sandstone, shale, chert, limestone, dolomite, anhydrite, and silt. This type of formation often causes vibration-induced cutter damage, abrasive wear, and slow ROP, which increase costs and make it difficult to predict expenditures on future operations. To mitigate these issues and to improve interval length and ROP performance, Progress required a bit with a cutting structure capable of remaining sharp and resisting impact damage when drilling through the hard, abrasive formation.
Use StingBlade bit to improve performance in difficult formations
Engineers at Smith Bits, a Schlumberger company, used the IDEAS platform to develop a StingBlade conical diamond element bit (Z713) with Stinger conical diamond elements strategically positioned across seven blades from bit center to gauge. Leveraging the superior impact and wear resistance of Stinger elements, StingBlade bits improve footage drilled and ROP while maintaining greater toolface control and minimizing shock in challenging drilling applications that can cause impact damage to conventional bits.