Mud Conductivity Sensor | Electromagnetic Induction, 0-300 mS/cm | CNPS

The sensor continuously measures the conductivity of drilling fluid using electromagnetic induction, providing real-time visibility into fluid quality and wellbore stability. A built-in temperature sensor applies automatic temperature compensation, and the measured value is transmitted as a standard 4-20 mA DC signal for display, recording, and alarm functions in the mud logging system.

• Measurement range 0-300 mS/cm with ±2% FS accuracy — Full coverage of typical drilling fluid conductivity with dependable accuracy.
• Electromagnetic induction with anti-fouling design — No electrodes to foul or maintain, keeping readings stable in solids-laden mud.
• Built-in temperature sensor for compensation — Automatic correction of temperature effects for accurate readings across conditions.
• 4-20 mA DC output — Simple, reliable integration with mud logging systems.
• Operating temperature -20°C to +60°C, max relative humidity 95% — Rated for outdoor rig environments and continuous duty.
• Early problem detection — Identifies contamination or dilution before it affects drilling performance.
• Enhanced security — Stable mud quality minimizes well control risks and equipment stress.
• Reduced costs — Reliable operation reduces downtime and maintenance interventions.

Summary: The mud conductivity sensor uses electromagnetic induction to measure conductivity without electrode contact, so mud solids and fouling do not distort the readings. A built-in temperature sensor continuously compensates for temperature effects, and the resulting value is transmitted as a 4-20 mA signal.

Steps

• The sensor is installed in the mud flow path of the drilling circulation system.
• Electromagnetic induction measures the conductivity of the fluid continuously and in real time.
• A built-in temperature sensor compensates for temperature-dependent changes in conductivity.
• Anti-contamination protection and corrosion-resistant materials keep the sensing area reliable in harsh mud.
• The 4-20 mA DC output feeds the mud logging system for display, recording, and early warning.

• Mud logging - drilling fluid and mud conductivity monitoring — Continuous conductivity monitoring of drilling fluid during drilling operations.
• Comprehensive mud quality monitoring — Used in conjunction with the mud density sensor for full coverage of mud quality.
• Mud logging system integration — Standard 4-20 mA DC output connects simply and reliably to existing mud logging systems.
• Oilfield drilling projects worldwide — Technology verified in numerous drilling projects of oil fields around the world.

The standard 4-20 mA direct current output makes integration with the mud logging system simple and reliable. The sensor is designed to work alongside the mud density sensor, enabling comprehensive, real-time monitoring of mud quality on a single logging platform.

• Trusted global supplier — CNPS is a trusted global supplier of mud conductivity sensors; our solutions help maximize drilling efficiency and safety.
• Field-verified technology — The sensing technology has been verified in numerous drilling projects of oil fields worldwide.
• Built for extreme mud — Corrosion-resistant materials and a protective cover withstand extreme mud environments while providing stable performance.
• Fast, reliable integration — Standard 4-20 mA output ensures simple, reliable hook-up to existing mud logging systems.