HOUSTON – Varel International has announced the development of the CaseBit advanced casing drill bit product line, a joint development with Downhole Products (DHP), a Varel International Energy Services company.
The CaseBit product line is a patent pending solution that addresses the need for an advanced cutting tool for Drilling with Casing (DWC) operations. The proprietary approach combines key Polycrystalline Diamond Compact (PDC) drill bit technologies, including force balancing, spiral and asymmetric blades, cutting structure wear modeling and computational fluid analysis with highly flexible manufacturing and casting technology. The result is an optimized, custom casing bit capable of drilling performance that exceeds competitive bits.
The company says that the “machineable matrix” body construction allows for greatly enhanced design flexibility, speedy manufacturing response and unsurpassed drillability. In addition, external and internal body configuration geometry (patents pending) accelerates drill out and improves the breakup of the bit face during post cementing drill out by the following string.