StethoScope Ultra

Applications

• Ultradepleted reservoirs
• Low-mobility formations
• High overbalance wells
• Drilling optimization
• Completion design
• Complex well profiles and environments
• Pressure profiling in challenging reservoirs with complex connectivity, such as large transition zones, waterflooding issues, or both
• Land and offshore operations, including unconventional fields

Benefits

• Enhances operational efficiency 
• Achieves faster desired pretest outcomes using intelligent, customizable downhole workflows
• Adapts to varying formation and environmental conditions
• Ensures flexibility and precision in acquiring formation pressure data 
• Enables better-informed decisions through advanced digital integration and real-time data flow
• Faster decision making with a high‑performance CPU that accelerates data processing
• Greater operational uptime through fully redesigned electronics and more robust power distribution
• Captures more reservoir insights in every run with expanded memory and data capacity
• Reaches tougher reservoirs with confidence through extended pressure and mobility operating ranges
• Works more efficiently from planning to delivery with integrated digital platforms and automated workflows
• Improves pressure accuracy in challenging conditions with refined pumps‑off pretesting performance
• Reduces operational risk with upgraded retract‑assurance logic for safer tool handling
• Enables better decisions in real time with advanced downhole filtering that delivers noticeably higher data quality

Features

• Quadrupled processing power for faster processing and smarter downhole decisions
• Next‑generation acquisition board delivering cleaner signals and higher fidelity measurement
• Supporting multiple gauge types and physics for complete flexibility
• Completely reengineered circuitry and power distribution for superior reliability in harsh environments
• Eightfold memory and data capacity expansion 
• Intelligent, customizable pretesting workflows powered by advanced downhole analytics
• Broadened pressure and mobility operating envelope to access more challenging reservoirs
• Seamless integration with digital platforms and automated workflows for streamlined operations
• Redefined real-time experience with clarity pumps‑off data, advanced downhole noise filtration technology, automated data quality insights, and multiple on‑demand frame (MODF) telemetry
• Upgraded retract‑assurance logic for reliable, more confident tool operation

How it improves performance

The StethoScope Ultra™ intelligent formation pressure-while-drilling service delivers real-time formation pressure measurements to enable immediate, informed decisions in challenging reservoir environments—real-time pressure, real-time decisions. The StethoScope Ultra service provides reliable pressure measurements over an extended range, including ultradepleted reservoirs with overbalance up to 11,000 psi and tight formations with mobilities as low as 0.01 mD/cP. The service's completely renewed electronic architecture, featuring a high-performance CTU and next-generation acquisition boards, provides never-before-seen downhole intelligence for formation testing. This advanced system enhances pretesting capabilities, ensuring the acquisition of highly accurate and reliable data, even in the most challenging subsurface conditions. This enables operators to unlock untapped reservoir potential and make real-time, data-driven decisions. Built with advanced hardware, upgraded firmware, and enhanced capabilities, the StethoScope Ultra service effectively addresses the limitations of the previous generation formation pressure-while-drilling (FPWD) tools while meeting modern operational needs.

How it works

The StethoScope Ultra service offers multiple intelligent pretest options and extensive parameterization to deliver flexible and precise formation pressure data. These customizable pretests include constant-volume expansion, double mini-drawdown validation, buildup extensions, and multiple controllable drawdowns and buildups, enabling accurate measurements even in challenging environments. From a 1-min to a 2-h pretest, the StethoScope Ultra service adapts to any operations and any environment.

The StethoScope Ultra service also features advanced downhole filtering that significantly enhances real-time data quality in high-noise settings—such as during mud circulation, mud motor operation, or rotary steerable systems. It leverages the exclusive MODF telemetry system to optimize and maximize downhole-to-surface data flow, ensuring seamless and efficient transmission. When integrated with Stream™ high-speed intelligent telemetry, real-time data density and resolution are substantially improved, yielding more precise and actionable insights.