GaugePro Echo near-bit reamer eliminated a 25-hour trip and enabled casing run in unstable formation Challenges • Unstable formation in 12-1/4 in. section mitigated by under reaming to 14-1/2 in. • Cement and hole stability issues in longer ratholes, requiring a rathole distance of less than 33 ft (10 m) Results • Reduced rathole by 84% from 164 ft (50 m) to 26 ft (8 m) • Eliminated a dedicated under-reamer run • Saved an estimated 25 hours rig time and $350,000 USD An operator challenged by unstable shale intervals and subsequent cementing issues in an offshore Norwegian field needed a more efficient way to ream the pilot hole and improve casing operations. Baker Hughes, a GE company (BHGE), recommended its new GaugeProTM Echo digital on-command reamer. The reamer,

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