A major operator in the Haynesville Basin wanted to achieve high penetration rates through highly variable rock as well as directional capabilities to build and hold a long tangent section. To do so, a new drillbit design would be required.
By using the DualHelix multiformation performance bit, the operator attained superior drilling performance in the field. This novel drillbit architecture improves efficiency with innovative placement of shaped blades to engage with extremely variable rock. The DualHelix bit uses the geometry of cutter placement to adjust how cutters engage based on the depth of cut. The varied curvature of cutter positions along the bottomhole pattern enables using the wake of the leading cutters to optimize cutting efficiency. This passive engagement method does not require any moving parts. Instead, it relies on the variable sweep created by the three-dimensional aspect of shearing rock removal. Additionally, the shape of the bit's body and blades resulting from this technique provides an advantageous hydraulic layout that improves bit cleaning and cutter cooling based on cutter loading.
